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Release 22May 2022
NIST Standard Reference Database 101
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IV.D.8.

Average Bond Length Differences by Model Chemistry

Calculated at wB97X-D/3-21G*

Species Name Bond type Bond Length (Å)
Experimental unc. Calculated Difference atom1 atom2
C4H10O Methyl propyl ether rCC 1.530   1.096 -0.434 5 13
CH3SCH2CH3 Ethane, (methylthio)- rCS 1.804   1.634 -0.170 8 9
CH3SCH2CH3 Ethane, (methylthio)- rCS 1.804   1.635 -0.169 5 8
Cu2 Copper diatomic rCuCu 2.220   2.061 -0.158 1 2
B2 Boron diatomic rBB 1.590   1.445 -0.145 1 2
CuF Copper monofluoride rCuF 1.745 ±0.000 1.607 -0.138 1 2
CuO Copper Monoxide rCuO 1.724 ±0.000 1.596 -0.128 1 2
Si2 Silicon diatomic rSiSi 2.246   2.132 -0.114 1 2
SiP Silicon monophosphide rSiP 2.078 ±0.002 1.964 -0.113 1 2
CuCl Copper monochloride rCuCl 2.051 ±0.000 1.954 -0.098 1 2
SiC silicon monocarbide rCSi 1.722   1.647 -0.075 1 2
NaF sodium fluoride rNaF 1.926 ±0.000 1.855 -0.071 1 2
CuH Copper monohydride rCuH 1.463   1.402 -0.061 1 2
C2Cl2 dichloroacetylene rC#C 1.246 ±0.030 1.200 -0.046 1 2
C6H6 Fulvene rCH 1.130 ±0.030 1.086 -0.044 2 7
ScH Scandium monohydride rScH 1.775 ±0.000 1.732 -0.044 1 2
C4H6 Methylenecyclopropane rCC 1.457   1.414 -0.043 2 5
C4H5N Cyclopropanecarbonitrile rCC 1.472   1.430 -0.042 6 8
C5H10 2-Pentene, (E)- rCC 1.576   1.535 -0.041 11 15
KF Potassium Fluoride rKF 2.171 ±0.000 2.132 -0.040 1 2
C5H8O Methyl cyclopropyl ketone rCH 1.126   1.091 -0.035 3 7
C4H10O Ethoxy ethane rCH 1.100   1.065 -0.035 2 6
LiCl- lithium chloride anion rLiCl 2.180   2.147 -0.033 1 2
C2H2O2 Ethanedial rCH 1.132   1.101 -0.031 1 3
LiF lithium fluoride rLiF 1.564 ±0.000 1.533 -0.031 1 2
LiOH lithium hydroxide rLiO 1.582   1.551 -0.031 1 2
NaBr Sodium Bromide rNaBr 2.502 ±0.000 2.473 -0.029 1 2
C5H6 Bicyclo[2.1.0]pent-2-ene rCC 1.560   1.531 -0.029 3 5
MgOH magnesium hydroxide rMgO 1.767   1.741 -0.026 1 2
AlBr Aluminum monobromide rAlBr 2.295   2.269 -0.026 1 2
LiO lithium oxide rLiO 1.688   1.662 -0.026 1 2
C4H10O Ethoxy ethane rCH 1.092   1.067 -0.025 4 10
As2 Arsenic diatomic rAs#As 2.103   2.078 -0.024 1 2
MgO magnesium oxide rMgO 1.749   1.725 -0.024 1 2
C6H8 (Z)-hexa-1,3,5-triene rC=C 1.368   1.344 -0.024 1 2
C5H8 Bicyclo[2.1.0]pentane rCC 1.536   1.513 -0.023 1 5
IBr Iodine monobromide rBrI 2.469 ±0.000 2.446 -0.023 1 2
P2 Phosphorus diatomic rP#P 1.893   1.871 -0.022 1 2
CH2ClCH2Cl Ethane, 1,2-dichloro- rCH 1.112   1.090 -0.022 1 5
C7H16 heptane rCH 1.121 ±0.007 1.099 -0.022 1 8
C4H5NO 3-Methylisoxazole rCC 1.514   1.494 -0.020 1 8
MgF Magnesium monofluoride rMgF 1.750   1.730 -0.020 1 2
C4H10O Ethoxy ethane rCH 1.090   1.070 -0.020 4 12
C9H8 Indene rCC 1.415 ±0.170 1.396 -0.019 1 2
CH3OCl methyl hypochlorite rCH 1.111 ±0.018 1.092 -0.019 3 4
CH3CH2CH2CH3 Butane rCH 1.117   1.098 -0.019 1 5
C6H5OCH3 Anisole rCO 1.399   1.380 -0.019 1 7
LiNH2 lithium amide rLiN 1.736 ±0.003 1.717 -0.019 1 2
C5H10 2-Pentene, (Z)- rCC 1.561   1.543 -0.018 1 5
C5H9N Pentanenitrile rCC 1.478   1.460 -0.018 4 6
GeBr4 Germanium tetrabromide rGeBr 2.272 ±0.001 2.254 -0.018 1 2
C4H5NO Isoxazole, 5-methyl- rCC 1.505   1.488 -0.018 1 5
Si(CH3)4 tetramethylsilane rCH 1.115 ±7.000 1.098 -0.017 2 6
CaC Calcium monocarbide rC#Ca 2.302   2.284 -0.017 1 2
As4 Arsenic tetramer rAsAs 2.435   2.419 -0.016 1 2
C4H8O2 Ethyl acetate rCH 1.105   1.089 -0.016 1 7
C6H8 (Z)-hexa-1,3,5-triene rCH 1.104   1.088 -0.016 1 7
CH2NN diazomethane rC=N 1.300   1.285 -0.015 1 2
CH3COCl Acetyl Chloride rCH 1.105   1.091 -0.014 2 5
N(CH3)3 Trimethylamine rCH 1.109   1.095 -0.014 2 8
C5H8 Ethenylcyclopropane rCH 1.099   1.085 -0.014 1 6
C6H6 Fulvene rC=C 1.349 ±0.002 1.336 -0.013 1 2
C8H8 cubane rCH 1.097   1.084 -0.013 1 9
HS+ sulfur monohydride cation rSH 1.374   1.362 -0.013 1 2
Br2 Bromine diatomic rBrBr 2.281   2.269 -0.012 1 2
GaBr Gallium monobromide rGaBr 2.352 ±0.000 2.340 -0.012 1 2
SiBr+ Silicon monobromide cation rSiBr 2.095 ±0.000 2.083 -0.012 1 2
CH3NO3 Methyl nitrate rNO 1.402   1.390 -0.012 1 4
GaF Gallium monofluoride rFGa 1.774 ±0.000 1.763 -0.011 1 2
PH+ phosphorus monohydride cation rPH 1.435   1.424 -0.011 1 2
D2 Deuterium diatomic rDD 0.742   0.731 -0.011 1 2
CH3CH2CHO Propanal rCH 1.103   1.092 -0.011 1 6
HD Deuterium hydride rDH 0.741   0.731 -0.011 1 2
C5H6 1-Buten-3-yne, 2-methyl- rCC 1.445   1.434 -0.011 7 8
CH3CH2CHO Propanal rCH 1.115   1.105 -0.010 3 10
CH3CH(NH2)COOH Alanine rCC 1.544   1.534 -0.010 3 4
C3F6 hexafluoropropene rC=C 1.329 ±0.003 1.319 -0.010 1 2
CH3ONO Methyl nitrite rCH 1.102   1.092 -0.010 1 4
CH2CCHCH3 1,2-Butadiene rC=C 1.314   1.304 -0.010 1 2
C4H4N2 Succinonitrile rCC 1.561   1.552 -0.009 1 2
C2H Ethynyl radical rC#C 1.217   1.207 -0.009 1 2
C6H12 (E)-3-methylpent-2-ene rCC 1.551   1.542 -0.009 9 12
C4H5N (E)-2-Butenenitrile rCC 1.432   1.423 -0.009 8 10
BH+ boron monohydride cation rBH 1.215   1.206 -0.009 1 2
C2H2O2 Ethanedial rCC 1.526   1.517 -0.009 1 2
CH3NO3 Methyl nitrate rCH 1.095   1.086 -0.009 5 8
Se2 Selenium diatomic rSe=Se 2.166 ±0.001 2.157 -0.009 1 2
PS phosphorus sulfide rP=S 1.900   1.892 -0.008 1 2
CBr4 Carbon tetrabromide rCBr 1.942 ±0.002 1.934 -0.008 1 2
CH3CHO Acetaldehyde rCH 1.114   1.106 -0.008 1 4
B2H6 Diborane rBH 1.200   1.192 -0.008 1 5
CH2NH Methanimine rCH 1.103   1.095 -0.008 1 3
C2H3Cl Ethene, chloro- rCH 1.090   1.082 -0.008 1 4
CF3COOH trifluoroacetic acid rCC 1.546 ±0.005 1.538 -0.008 1 2
C3H4N2 1H-Pyrazole rCH 1.083   1.075 -0.008 5 6
C5H5N Pyridine rC:C 1.400   1.393 -0.007 2 5
C3H4N2 1H-Pyrazole rCH 1.082   1.075 -0.007 1 2
HNCNH diiminomethane rC=N 1.224 ±0.001 1.217 -0.007 1 2
C3H6O Propylene oxide rCC 1.513   1.506 -0.007 2 6
I2 Iodine diatomic rII 2.665   2.659 -0.007 1 2
HClO4 perchloric acid rOCl 1.641 ±0.002 1.634 -0.007 1 3
C4H4N2 1,3-Diazine rCH 1.087   1.080 -0.007 1 7
C4H4N2 Succinonitrile rCC 1.465   1.459 -0.006 1 3
C6H10 1-Butyne, 3,3-dimethyl- rCH 1.056 ±0.001 1.050 -0.006 6 7
C3H4N2 1H-Pyrazole rCH 1.080   1.074 -0.006 3 4
CH3OCHO methyl formate rCH 1.101   1.095 -0.006 3 8
C5H5N Bicyclo[1.1.0]butane-1-carbonitrile rCC 1.514   1.508 -0.006 3 9
C4H6 Bicyclo[1.1.0]butane rCC 1.497   1.492 -0.005 1 2
C4H5N Cyclopropanecarbonitrile rCC 1.513   1.508 -0.005 9 10
CH2C(CH3)OCH3 1-Propene, 2-methoxy- rCH 1.087   1.082 -0.005 11 12
CHF3 Methane, trifluoro- rCH 1.091 ±0.014 1.086 -0.005 1 2
SiS silicon monosulfide rSiS 1.929 ±0.000 1.924 -0.005 1 2
CH3CH2CHO Propanal rCH 1.105   1.100 -0.005 2 8
CH3CH2OH Ethanol rCH 1.098   1.093 -0.005 1 6
CH2NN diazomethane rCH 1.075   1.070 -0.005 1 4
SiH2Cl2 dichlorosilane rSiH 1.480 ±0.015 1.475 -0.005 1 2
ArH+ Argon hydride cation rArH 1.292 ±0.000 1.288 -0.004 1 2
C8H8 cyclooctatetraene rC=C 1.337 ±0.001 1.333 -0.004 1 2
C6H6 Fulvene rC=C 1.355 ±0.004 1.351 -0.004 3 5
CP Carbon monophosphide rC#P 1.562   1.558 -0.004 1 2
CH2ClCH2Cl Ethane, 1,2-dichloro- rCC 1.531   1.527 -0.004 1 2
C4H6 Cyclobutene rCH 1.083   1.079 -0.004 1 5
CH2O2 Dioxirane rCH 1.090 ±0.002 1.087 -0.004 1 2
CH3COCl Acetyl Chloride rCC 1.506   1.502 -0.004 1 2
CH3SCH2CH3 Ethane, (methylthio)- rCH 1.092   1.088 -0.004 1 3
C6H5OH phenol rC:C 1.398   1.394 -0.004 1 2
AlNC Aluminum isocyanide rAlN 1.855 ±0.005 1.851 -0.003 1 2
HSiCl Chlorosilylene rSiH 1.525 ±0.005 1.522 -0.003 1 3
CH3NO nitrosomethane rCH 1.094   1.091 -0.003 1 4
CH2PH Phosphaethene rCH 1.090 ±0.015 1.087 -0.003 1 3
CH3ONO Methyl nitrite rCH 1.090   1.087 -0.003 1 3
SF4 Sulfur tetrafluoride rSF 1.646 ±0.003 1.643 -0.003 1 2
PO- phosphorus monoxide anion rOP 1.540   1.537 -0.003 1 2
AlF Aluminum monofluoride rAlF 1.654 ±0.000 1.651 -0.003 1 2
GaAs Gallium arsenide rGa#As 2.530 ±0.020 2.527 -0.003 1 2
CH3NO3 Methyl nitrate rCH 1.088   1.085 -0.003 5 6
CH3CH(CH3)CH3 Isobutane rCH 1.100   1.097 -0.003 3 6
H2CSe Selenoformaldehyde rHC 1.090   1.088 -0.003 1 3
CH2C(CH3)CH3 1-Propene, 2-methyl- rCH 1.088   1.085 -0.003 2 3
C6H12 Cyclohexane rCH 1.101   1.099 -0.003 1 7
CH3CH2CHO Propanal rCH 1.096   1.094 -0.002 1 5
C3H3NO Oxazole rCH 1.075 ±0.001 1.073 -0.002 2 6
CH3CH2CHO Propanal rCC 1.509   1.507 -0.002 2 3
H2CS Thioformaldehyde rC=S 1.611   1.608 -0.002 1 2
CH3NHCH3 Dimethylamine rCH 1.098   1.096 -0.002 3 7
CH2PH Phosphaethene rCH 1.090 ±0.015 1.088 -0.002 1 4
C3H3NO Oxazole rCH 1.075 ±0.001 1.073 -0.002 4 7
CH2CHCH2CH2Cl 1-Butene, 4-chloro- rCC 1.508   1.506 -0.002 2 6
LiOH lithium hydroxide rOH 0.969   0.967 -0.002 1 3
C3H3NO Oxazole rCH 1.073 ±0.001 1.072 -0.002 5 8
CH2CO Ketene rCH 1.083   1.081 -0.001 1 4
CH3NC methyl isocyanide rCH 1.094   1.093 -0.001 1 4
SCSe Carbon sulfide selenide rC=S 1.553 ±0.002 1.552 -0.001 1 2
C3H4 cyclopropene rCH 1.088   1.087 -0.001 1 6
C3H4 cyclopropene rCH 1.072   1.071 -0.001 2 4
SiN Silicon nitride rSiN 1.575   1.574 -0.001 1 2
C3H5ClO Oxirane, (chloromethyl)- rCC 1.475   1.474 -0.001 3 4
C2H2+ acetylene cation rC=C 1.253 ±0.001 1.252 -0.001 1 2
P2H4 Diphosphine rPH 1.417   1.416 -0.001 1 3
CH3CCH propyne rCH 1.096   1.095 -0.001 1 5
C2H2ClF 1-chloro-1-fluoroethylene rCH 1.082 ±0.001 1.081 -0.001 2 5
C6H8 (Z)-hexa-1,3,5-triene rC=C 1.337   1.336 -0.001 3 5
C2H2 Acetylene rC#C 1.203   1.202 -0.001 1 2
C4H4N2 1,3-Diazine rC:N 1.350   1.349 -0.001 3 5
CH3NH2 methyl amine rNH 1.018 ±0.001 1.017 -0.001 2 6
C4H8 cyclobutane rCH 1.093   1.093 -0.001 1 5
B2H6 Diborane rBH 1.320   1.320 0.000 1 3
C4H6 Cyclobutene rCH 1.094   1.094 0.000 3 7
C3H6 Cyclopropane rCH 1.083   1.083 0.000 1 4
SSO Disulfur monoxide rS=S 1.884   1.884 0.000 2 3
C4H4N2 1,3-Diazine rCH 1.082   1.082 0.000 2 8
CH3ONO Methyl nitrite rNO 1.398   1.398 0.000 2 6
CH3CHFCH3 2-Fluoropropane rCH 1.094 ±0.005 1.094 0.000 4 10
ClCN chlorocyanogen rC#N 1.161   1.160 0.000 2 3
CH3CHClCH3 Propane, 2-chloro- rCH 1.091   1.091 0.000 2 5
HeH+ Helium hydride cation rHHe 0.790   0.790 0.000 1 2
C2H2 Acetylene rCH 1.063   1.063 0.000 1 3
CH2 Methylene rCH 1.085   1.085 0.000 1 2
CH3OC2H5 Ethane, methoxy- rCH 1.092 ±0.007 1.092 0.000 4 11
C6H6 Fulvene rCH 1.080 ±0.005 1.080 0.000 5 11
AlS Aluminum sulfide rAlS 2.029   2.029 0.000 1 2
C3H8 Propane rCH 1.096   1.096 0.000 1 4
CH3CHFCH3 2-Fluoropropane rCH 1.093 ±0.006 1.093 0.000 4 8
C4H6S Thiophene, 2,5-dihydro- rCH 1.095   1.095 0.000 2 6
C5H8 1,3-Butadiene, 2-methyl- rCC 1.512   1.512 0.000 2 5
PN Phosphorus mononitride rP#N 1.491   1.491 0.000 1 2
CH3CHS Thioacetaldehyde rCH 1.098   1.098 0.000 2 6
C6H5OH phenol rCH 1.082   1.082 0.000 4 11
C4H8O2 Ethyl acetate rCC 1.508   1.508 0.000 1 2
P2H4 Diphosphine rPH 1.414   1.414 0.000 1 4
C2H5N Aziridine rCH 1.083   1.083 0.000 3 5
CH3NH2 methyl amine rCN 1.471 ±0.003 1.471 0.000 1 2
ClOF3 Chlorine trifluoride oxide rFCl 1.713 ±0.003 1.713 0.000 1 4
CH2FCl fluorochloromethane rCH 1.090 ±0.010 1.090 0.000 1 4
H2CSe Selenoformaldehyde rC=Se 1.753   1.754 0.000 1 2
C6H5OH phenol rCH 1.084   1.085 0.001 2 9
SeCl2 Selenium Dichloride rClSe 2.157 ±0.003 2.158 0.001 1 2
AlI Aluminum monoiodide rAlI 2.537 ±0.000 2.538 0.001 1 2
CH2CHF Ethene, fluoro- rCH 1.082   1.083 0.001 1 4
C5H5N Bicyclo[1.1.0]butane-1-carbonitrile rCC 1.518   1.519 0.001 3 7
C5H5N Pyridine rC:C 1.390   1.391 0.001 3 5
C6H10 1-Butyne, 3,3-dimethyl- rC#C 1.209 ±0.001 1.210 0.001 1 6
C6H8 1,4-Cyclohexadiene rCH 1.100   1.101 0.001 1 11
HCCl Chloromethylene rCH 1.119 ±0.036 1.120 0.001 1 3
HCCCN Cyanoacetylene rCH 1.062 ±0.001 1.064 0.001 4 5
C2- carbon diatomic anion rC#C 1.268 ±0.000 1.270 0.001 1 2
CH2Cl2 Methylene chloride rCH 1.085 ±0.002 1.086 0.001 1 2
C3H4O Methylketene rCH 1.083   1.084 0.001 2 5
CH3OCH3 Dimethyl ether rCH 1.099 ±0.001 1.100 0.001 2 6
CH3NO nitrosomethane rCH 1.092   1.093 0.001 1 5
C4H8 cyclobutane rCH 1.091   1.092 0.001 1 6
CH3CHS Thioacetaldehyde rCH 1.090   1.092 0.002 2 5
C6H6 Fulvene rCH 1.078 ±0.005 1.080 0.002 3 9
BrF5 bromine pentafluoride rFBr 1.774 ±0.003 1.776 0.002 1 3
SiH+ silicon monohydride cation rSiH 1.504   1.506 0.002 1 2
C3H8O2 1,3-Propanediol rOH 0.980   0.982 0.002 6 8
MgS magnesium sulfide rMgS 2.143   2.145 0.002 1 2
CH3CCH propyne rCH 1.060   1.062 0.002 3 4
CSe2 Carbon diselenide rC=Se 1.692 ±0.000 1.694 0.002 1 2
BrF3 Bromine trifluoride rFBr 1.810 ±0.000 1.812 0.002 1 3
NS+ nitrogen sulfide cation rNS 1.440   1.442 0.002 1 2
CH3OCHO methyl formate rCH 1.086   1.088 0.002 1 5
C5H8 Ethenylcyclopropane rCC 1.475   1.477 0.002 1 2
SCSe Carbon sulfide selenide rC=Se 1.695 ±0.002 1.697 0.002 1 3
C2H5N Aziridine rCH 1.084   1.086 0.002 3 6
C2H2+ acetylene cation rCH 1.077 ±0.005 1.079 0.003 1 3
C5H8 Cyclopentene rCC 1.518   1.521 0.003 2 4
C2H6O2S Dimethyl sulfone rCS 1.777 ±0.006 1.780 0.003 1 4
CH3OC2H5 Ethane, methoxy- rCH 1.100 ±0.003 1.103 0.003 3 8
C2H5F fluoroethane rCH 1.095 ±0.007 1.098 0.003 1 4
S2 Sulfur diatomic rS=S 1.889   1.892 0.003 1 2
C5H10 Cyclopropane, 1,1-dimethyl- rCC 1.514   1.517 0.003 1 4
C2H5F fluoroethane rCH 1.091 ±0.007 1.094 0.003 2 6
ICN Cyanogen iodide rC#N 1.160 ±0.000 1.164 0.003 2 3
SiHCl3 Trichlorosilane rSiH 1.464   1.467 0.003 1 2
C4H10O Propane, 2-methoxy- rCH 1.095   1.098 0.003 1 2
CH3CHFCH3 2-Fluoropropane rCH 1.092   1.096 0.004 1 3
C2H5F fluoroethane rCH 1.090 ±0.007 1.094 0.004 2 7
OCSe Carbonyl selenide rC=Se 1.709   1.713 0.004 1 3
S2+ sulfur diatomic cation rS=S 1.825 ±0.010 1.829 0.004 1 2
CH3CHClCH3 Propane, 2-chloro- rCH 1.092   1.096 0.004 3 6
CH3CH(CH3)CH3 Isobutane rCH 1.092   1.096 0.004 3 9
C3H7SH 1-Propanethiol rCH 1.090   1.094 0.004 8 10
CH3OC2H5 Ethane, methoxy- rCH 1.099 ±0.007 1.103 0.004 1 6
C5H10 2-Pentene, (Z)- rCH 1.092   1.096 0.004 1 2
C6H12 Cyclohexane rCH 1.093   1.097 0.004 1 13
SiH3Cl chlorosilane rSiCl 2.051   2.055 0.004 1 2
C5H10 Cyclopropane, 1,1-dimethyl- rCH 1.080   1.084 0.004 2 6
CH3CHS Thioacetaldehyde rCH 1.089   1.093 0.004 1 4
SOCl2 thionyl chloride rS=O 1.443 ±0.006 1.447 0.004 1 2
C4H4N2 1,3-Diazine rCH 1.079   1.083 0.004 3 9
SiH3+ Silyl cation rSiH 1.460 ±0.010 1.464 0.004 1 2
GeF Germanium monofluoride rFGe 1.745   1.749 0.004 1 2
C7H16 heptane rCC 1.534   1.538 0.004 1 2
CH3NC methyl isocyanide rCN 1.426 ±0.003 1.430 0.004 1 2
C3H7SH 1-Propanethiol rCH 1.092   1.096 0.004 5 7
C10H8 naphthalene rC:C 1.410   1.414 0.004 2 3
CS carbon monosulfide rC#S 1.535   1.539 0.005 1 2
CH3I methyl iodide rCH 1.084 ±0.003 1.089 0.005 1 3
H2 Hydrogen diatomic rHH 0.741   0.746 0.005 1 2
CH3SCH2CH3 Ethane, (methylthio)- rCH 1.087   1.092 0.005 1 2
CH3CH2Cl Ethyl chloride rCH 1.086   1.091 0.005 2 7
CH2CHF Ethene, fluoro- rCH 1.077   1.082 0.005 2 5
C2H3Cl Ethene, chloro- rCH 1.079   1.084 0.005 2 5
CH3OC2H5 Ethane, methoxy- rCO 1.415 ±0.005 1.420 0.005 1 2
CH3CHO Acetaldehyde rCH 1.086   1.091 0.005 2 5
CH3CHFCH3 2-Fluoropropane rCH 1.088 ±0.006 1.093 0.005 4 6
SiH4 Silane rSiH 1.480 ±0.000 1.485 0.005 1 2
C5H6 Bicyclo[2.1.0]pent-2-ene rCC 1.530   1.536 0.006 1 3
CH4 Methane rCH 1.087 ±0.001 1.093 0.006 1 2
NH4+ ammonium cation rHN 1.029 ±0.000 1.034 0.006 1 2
SiH3Cl chlorosilane rSiH 1.475   1.481 0.006 1 3
CH3CH2OH Ethanol rCH 1.088   1.094 0.006 1 5
CH3SeH Methane selenol rSeH 1.473 ±0.020 1.479 0.006 1 3
CH3CH2Cl Ethyl chloride rCH 1.090   1.096 0.006 1 3
CN Cyano radical rC#N 1.172   1.178 0.006 1 2
SeS Selenium monosulfide rS=Se 2.037 ±0.001 2.043 0.006 1 2
SiCl Clorosilylidyne rSiCl 2.061 ±0.000 2.067 0.006 1 2
CH3OCH3 Dimethyl ether rCH 1.085 ±0.001 1.091 0.006 2 4
PCl5 Phosphorus pentachloride rPCl 2.020   2.026 0.006 1 2
PF5 Phosphorus pentafluoride rFP 1.577   1.583 0.006 1 5
HCl+ hydrogen chloride cation rHCl 1.315   1.321 0.006 1 2
C2H3 vinyl rCH 1.085   1.091 0.006 2 4
HSe Selenium monohydride rSeH 1.475 ±0.010 1.481 0.006 1 2
CH3SCH2CH3 Ethane, (methylthio)- rCH 1.097   1.103 0.006 5 6
CH3CH2CH2CH3 Butane rCC 1.531   1.537 0.006 1 2
CH3OC2H5 Ethane, methoxy- rCH 1.086 ±0.010 1.092 0.006 1 5
CH3Br methyl bromide rCH 1.082 ±0.001 1.089 0.007 1 3
C4H8O2 Ethyl acetate rCC 1.515   1.522 0.007 5 6
AlH+ aluminum monohydride cation rAlH 1.602   1.608 0.007 1 2
SiH Silylidyne rSiH 1.520   1.527 0.007 1 2
BH3 boron trihydride rBH 1.190   1.197 0.007 1 2
SiH3F monofluorosilane rSiH 1.476   1.483 0.007 1 3
GeS Germanium monosulfide rS=Ge 2.012 ±0.000 2.019 0.007 1 2
SiF silicon monofluoride rSiF 1.604   1.612 0.007 1 2
C6H5OH phenol rCH 1.076   1.083 0.007 3 10
CH3SCH2CH3 Ethane, (methylthio)- rCH 1.090   1.097 0.007 9 11
CH2F2 Methane, difluoro- rCH 1.084 ±0.003 1.091 0.007 1 2
CH3OC2H5 Ethane, methoxy- rCH 1.089 ±0.008 1.096 0.007 4 10
PH phosphorus monohydride rPH 1.422   1.430 0.008 1 2
CH3CH2CHO Propanal rCC 1.523   1.531 0.008 1 2
SiI4 silicon tetraiodide rSiI 2.432 ±0.005 2.440 0.008 1 2
BrCl Bromine monochloride rClBr 2.136 ±0.000 2.144 0.008 1 2
XeF2 Xenon difluoride rFXe 1.974 ±0.000 1.982 0.008 1 2
Si(CH3)4 tetramethylsilane rSiC 1.875 ±0.002 1.883 0.008 1 2
ClCN chlorocyanogen rCCl 1.629   1.637 0.008 1 2
N3 azide radical rNN 1.181   1.189 0.008 1 2
CH3CSNH2 Ethanethioamide rC=S 1.647 ±0.002 1.655 0.008 1 2
BeS beryllium sulfide rBe=S 1.742   1.750 0.008 1 2
LiBr Lithium Bromide rLiBr 2.170 ±0.000 2.179 0.008 1 2
PO2 Phosphorus dioxide rP=O 1.467   1.475 0.008 1 2
CH3SCH2CH3 Ethane, (methylthio)- rCH 1.089   1.097 0.008 9 10
C5H8O Methyl cyclopropyl ketone rCC 1.510   1.519 0.009 2 3
CHONH2 formamide rNH 1.001   1.010 0.009 3 6
C3H7SH 1-Propanethiol rCC 1.529   1.538 0.009 7 10
HS Mercapto radical rSH 1.341   1.350 0.009 1 2
CH3CH2O Ethoxy radical rCH 1.085   1.094 0.009 1 5
KrH+ Protonated Krypton rHKr 1.421 ±0.000 1.430 0.009 1 2
DS Mercapto-d rSD 1.341   1.350 0.009 1 2
BS boron sulfide rBS 1.609   1.618 0.009 1 2
CN- cyanide anion rC#N 1.177 ±0.004 1.186 0.009 1 2
CH3NHCH3 Dimethylamine rCH 1.098   1.107 0.009 3 5
HSiCl Chlorosilylene rSiCl 2.067 ±0.003 2.076 0.009 1 2
CHBr3 bromoform rCBr 1.924 ±0.005 1.933 0.009 1 3
CH3CH2O Ethoxy radical rCH 1.086   1.095 0.009 1 4
SOF4 Sulfur tetrafluoride oxide rFS 1.596 ±0.003 1.605 0.009 1 3
NH3BF3 Amminetrifluoroboron rBN 1.673   1.682 0.009 1 2
C4H10O Ethoxy ethane rCC 1.517   1.526 0.009 2 4
CH2CHCH2CH3 1-Butene rCC 1.536   1.546 0.010 1 2
HSSSH trisulfane rSS 2.054 ±0.000 2.064 0.010 1 2
AsH Arsenic monohydride rAsH 1.535 ±0.001 1.544 0.010 1 2
C8H8 cyclooctatetraene rCC 1.470 ±0.001 1.480 0.010 1 5
CHClCCl2 Trichloroethylene rCCl 1.720   1.730 0.010 2 5
F2SO Thionyl Fluoride rFS 1.585 ±0.000 1.595 0.010 1 3
C8H8 cyclooctatetraene rCH 1.079 ±0.001 1.089 0.010 1 9
HCl Hydrogen chloride rHCl 1.275 ±0.000 1.285 0.010 1 2
CH3OCl methyl hypochlorite rCH 1.086 ±0.018 1.096 0.010 3 5
CH3NHCH3 Dimethylamine rCH 1.084   1.094 0.010 3 9
NH2F monofluoroamine rNF 1.433   1.443 0.010 1 2
DCl Hydrochloric acid-d rDCl 1.275 ±0.000 1.285 0.010 1 2
GeH3F monofluorogermane rGeF 1.731 ±0.000 1.741 0.010 1 2
HBr+ hydrogen bromide cation rHBr 1.448   1.459 0.010 1 2
TiCl Titanium Monochloride rClTi 2.265 ±0.000 2.275 0.011 1 2
CH2Br2 dibromomethane rCBr 1.925 ±0.002 1.936 0.011 1 4
CH3NC methyl isocyanide rC#N 1.166 ±0.003 1.177 0.011 2 3
C3F6 hexafluoropropene rCF 1.329 ±0.003 1.340 0.011 1 4
C3H4O Methylketene rCH 1.083   1.094 0.011 3 6
CHONH2 formamide rNH 1.001   1.012 0.011 3 5
SiH2Cl2 dichlorosilane rSiCl 2.033 ±0.003 2.044 0.011 1 4
N2 Nitrogen diatomic rN#N 1.098   1.109 0.011 1 2
CBrClF2 Methane, bromochlorodifluoro- rCBr 1.932 ±0.004 1.943 0.011 1 2
C5H8 Cyclobutane, methylene- rCC 1.524   1.535 0.011 1 3
SiH3F monofluorosilane rSiF 1.595   1.606 0.011 1 2
HClO4 perchloric acid rO=Cl 1.414 ±0.001 1.425 0.011 1 2
NH+ imidogen cation rNH 1.070 ±0.001 1.082 0.012 1 2
CH3NH2 methyl amine rCH 1.093 ±0.000 1.105 0.012 1 3
CH3COCl Acetyl Chloride rC=O 1.187   1.199 0.012 1 3
PF phosphorus monofluoride rFP 1.593   1.604 0.012 1 2
C6H6 Fulvene rCC 1.476 ±0.008 1.488 0.012 5 6
C6H5OCH3 Anisole rCO 1.433   1.445 0.012 7 8
HClO4 perchloric acid rOH 0.980   0.992 0.012 3 6
SiF2 Silicon difluoride rFSi 1.590 ±0.000 1.603 0.013 1 2
HS- mercapto anion rSH 1.343   1.356 0.013 1 2
C4H6O Cyclobutanone rCC 1.556   1.569 0.013 3 5
OCSe Carbonyl selenide rC=O 1.159   1.172 0.013 1 2
C5H8 1,3-Butadiene, 2-methyl- rCC 1.463   1.476 0.013 2 3
C2H5F fluoroethane rCF 1.398 ±0.007 1.411 0.013 1 3
CH3Br methyl bromide rCBr 1.934 ±0.000 1.947 0.013 1 2
C2H5F fluoroethane rCC 1.505 ±0.007 1.518 0.013 1 2
Cl2+ chlorine diatomic cation rClCl 1.892   1.905 0.013 1 2
PCl phosphorus chloride rPCl 2.018   2.031 0.014 1 2
N2O3 Dinitrogen trioxide rN=O 1.217   1.231 0.014 2 5
PO Phosphorus monoxide rP=O 1.476   1.490 0.014 1 2
CH3CH2OH Ethanol rCH 1.086   1.100 0.014 2 8
OPCl Phosphorus oxychloride rPCl 2.059 ±0.004 2.073 0.014 1 3
C3H7N Cyclopropylamine rCH 1.080   1.094 0.014 1 2
C5H12O Butane, 1-methoxy- rCO 1.415   1.429 0.014 3 4
SiH2F2 difluorosilane rSiH 1.462   1.476 0.014 1 4
CH2ClCH2Cl Ethane, 1,2-dichloro- rCCl 1.790   1.804 0.014 1 3
C2 Carbon diatomic rC=C 1.243   1.257 0.014 1 2
P2+ phosphorus diatomic cation rPP 1.986   2.000 0.015 1 2
SiO Silicon monoxide rSiO 1.510 ±0.000 1.524 0.015 1 2
OPCl Phosphorus oxychloride rP=O 1.462 ±0.011 1.477 0.015 1 2
SCl2 Sulfur dichloride rSCl 2.013 ±0.001 2.028 0.015 1 2
CH2FCl fluorochloromethane rCF 1.370 ±0.001 1.385 0.015 1 2
C4H4N2 Pyridazine rCH 1.064   1.079 0.015 1 5
SiHCl3 Trichlorosilane rSiCl 2.020   2.035 0.015 1 3
CSe Carbon monoselenide rC=Se 1.676 ±0.000 1.691 0.015 1 2
HNCO Isocyanic acid rC=O 1.164   1.179 0.015 3 4
CH3CH2O Ethoxy radical rCH 1.088   1.104 0.016 2 7
BN boron nitride rB=N 1.325   1.341 0.016 1 2
C5H8O 2H-Pyran, 3,4-dihydro- rCC 1.516   1.532 0.016 10 13
CCl2O Phosgene rC=O 1.177   1.192 0.016 1 2
AlH aluminum monohydride rAlH 1.648   1.663 0.016 1 2
C3O2 Carbon suboxide rC=C 1.251   1.267 0.016 1 2
C5H10 2-Pentene, (Z)- rCC 1.490   1.506 0.016 8 14
XeF4 Xenon tetrafluoride rFXe 1.935 ±0.000 1.951 0.016 1 2
Cl2 Chlorine diatomic rClCl 1.988   2.004 0.016 1 2
CH2CHCH2CH3 1-Butene rCC 1.493   1.509 0.016 2 3
COBr2 Carbonic dibromide rC=O 1.172 ±0.003 1.188 0.016 1 2
NH2CONH2 Urea rNH 0.998   1.014 0.016 4 8
HBr hydrogen bromide rHBr 1.414 ±0.000 1.431 0.016 1 2
BH Boron monohydride rBH 1.232   1.249 0.016 1 2
CHClCCl2 Trichloroethylene rCCl 1.712   1.729 0.017 2 6
CH2O2 Dioxirane rOO 1.516 ±0.003 1.532 0.017 4 5
C5H8 Bicyclo[2.1.0]pentane rCC 1.528   1.545 0.017 1 3
PF2 Phosphorus difluoride rPF 1.579   1.596 0.017 1 2
C4H4N2 1,3-Diazine rC:N 1.328   1.345 0.017 2 6
NH2SH Thiohydroxylamine rSH 1.344 ±0.029 1.361 0.017 2 3
C3H8O2 Methane, dimethoxy- rCO 1.432   1.449 0.017 4 6
C6H6 Fulvene rCC 1.470 ±0.004 1.487 0.017 1 3
F2SO Thionyl Fluoride rO=S 1.413 ±0.000 1.430 0.017 1 2
C5H8 Bicyclo[2.1.0]pentane rCC 1.565   1.583 0.018 3 4
C4H6 Cyclobutene rCC 1.517   1.535 0.018 1 3
CH3OCHO methyl formate rCO 1.334   1.352 0.018 2 3
C6H5OH phenol rCO 1.364   1.382 0.018 1 7
C2H Ethynyl radical rCH 1.047   1.065 0.018 1 3
CHF2Cl difluorochloromethane rCF 1.350 ±0.010 1.368 0.018 1 4
OH Hydroxyl radical rOH 0.970   0.988 0.018 1 2
CF3COOH trifluoroacetic acid rC=O 1.192 ±0.003 1.210 0.018 2 4
H2Se Hydrogen selenide rSeH 1.460   1.478 0.018 1 2
C4H8O2 Ethyl acetate rC=O 1.203   1.222 0.019 2 4
C3H5 Allyl radical rCH 1.069   1.088 0.019 1 2
CFCl3 Trichloromonofluoromethane rCF 1.345 ±0.003 1.364 0.019 1 2
CH2CO Ketene rC=O 1.162   1.181 0.019 2 3
CH3CH(NH2)COOH Alanine rCC 1.509   1.528 0.019 2 3
SCl sulfur monochloride rSCl 1.975   1.995 0.019 1 2
AsF Arsenic monofluoride rFAs 1.736 ±0.001 1.756 0.020 1 2
BeH2 beryllium dihydride rBeH 1.326 ±0.000 1.346 0.020 1 2
N(CH3)3 Trimethylamine rCH 1.088   1.108 0.020 2 5
BeO beryllium oxide rBe=O 1.331   1.351 0.020 1 2
C3H6 Cyclopropane rCC 1.501   1.521 0.020 1 2
CO Carbon monoxide rC#O 1.128 ±0.000 1.149 0.020 1 2
HO2 Hydroperoxy radical rOH 0.971   0.992 0.021 1 3
CH2I2 Diiodomethane rCH 1.066 ±0.015 1.087 0.021 1 4
FNO2 Nitryl fluoride rNF 1.467 ±0.015 1.488 0.021 1 2
PCl5 Phosphorus pentachloride rPCl 2.124   2.146 0.022 1 5
AlN Aluminum nitride rN#Al 1.786   1.808 0.022 1 2
SSO Disulfur monoxide rS=O 1.456   1.478 0.022 1 2
HOCl hypochlorous acid rOH 0.973 ±0.002 0.995 0.022 1 2
CH3OCHO methyl formate rCO 1.437   1.459 0.022 1 2
C5H7N Cyclobutanecarbonitrile rCC 1.551   1.573 0.022 3 6
BeF Beryllium monofluoride rBeF 1.361   1.384 0.023 1 2
GeO Germanium monoxide rOGe 1.625   1.648 0.023 1 2
HOBr Hypobromous acid rBrO 1.834   1.857 0.023 2 3
CH Methylidyne rCH 1.120   1.143 0.023 1 2
AsH3 Arsine rAsH 1.511 ±0.000 1.534 0.023 1 2
CFCl3 Trichloromonofluoromethane rCCl 1.764 ±0.001 1.787 0.024 1 3
SO+ sulfur monoxide cation rO=S 1.424   1.448 0.024 1 2
C4H6O Cyclobutanone rCC 1.527   1.551 0.024 2 3
C3H3NO Oxazole rCO 1.357 ±0.003 1.381 0.024 1 2
AlO Aluminum monoxide rAlO 1.618   1.642 0.024 1 2
BeH beryllium monohydride rBeH 1.343   1.367 0.024 1 2
CO+ carbon monoxide cation rC=O 1.115 ±0.000 1.139 0.024 1 2
CH2Cl2 Methylene chloride rCCl 1.767 ±0.002 1.792 0.025 1 4
HOI Hypoiodous acid rOI 1.994 ±0.000 2.019 0.025 1 2
C5H6 Propellane rCC 1.525 ±0.002 1.550 0.025 1 2
CH3ONO Methyl nitrite rCO 1.437   1.462 0.025 1 2
MgOH magnesium hydroxide rOH 0.940   0.965 0.025 1 3
BO boron monoxide rB=O 1.205   1.229 0.025 1 2
N2O3 Dinitrogen trioxide rN=O 1.142   1.167 0.025 1 3
C2H6O2S Dimethyl sulfone rS=O 1.431 ±0.004 1.456 0.025 1 2
HOI Hypoiodous acid rOH 0.967 ±0.008 0.992 0.025 1 3
BCl boron monochloride rBCl 1.719 ±0.000 1.745 0.025 1 2
SF Monosulfur monofluoride rSF 1.599   1.625 0.026 1 2
NH Imidogen rNH 1.036   1.062 0.026 1 2
C4H8O2 Ethyl acetate rCO 1.345   1.371 0.026 2 3
PF5 Phosphorus pentafluoride rPF 1.534   1.560 0.026 1 2
NS Mononitrogen monosulfide rNS 1.497 ±0.000 1.523 0.026 1 2
C5H10 2-Pentene, (E)- rCC 1.484   1.510 0.026 4 11
KBr Potassium Bromide rKBr 2.821 ±0.000 2.847 0.026 1 2
C3H3NO Oxazole rCO 1.370 ±0.002 1.396 0.027 1 5
MgH+ magnesium monohydride cation rMgH 1.652   1.679 0.027 1 2
BrF Bromine monofluoride rFBr 1.759 ±0.000 1.786 0.027 1 2
ClF Chlorine monofluoride rFCl 1.628 ±0.000 1.655 0.027 1 2
ICN Cyanogen iodide rCI 1.992 ±0.000 2.019 0.027 1 2
HOBr Hypobromous acid rOH 0.961   0.988 0.027 1 2
H2O Water rOH 0.958 ±0.000 0.985 0.027 1 2
C4H8O2 1,3-Dioxane rCO 1.393   1.420 0.027 1 2
AlC Aluminum carbide rC=Al 1.955   1.983 0.028 1 2
C2HF3 Trifluoroethylene rCF 1.316 ±0.011 1.344 0.028 1 3
CCl2O Phosgene rCCl 1.737   1.764 0.028 2 3
HCCl Chloromethylene rCCl 1.696 ±0.003 1.724 0.028 1 2
HI Hydrogen iodide rHI 1.609 ±0.000 1.637 0.028 1 2
AsF3 Arsenic trifluoride rAsF 1.706 ±0.002 1.735 0.029 1 2
GeH germylidene rGeH 1.588   1.617 0.029 1 2
CI4 tetraiodomethane rCI 2.157 ±0.010 2.186 0.029 1 2
F2 Fluorine diatomic rFF 1.412   1.441 0.029 1 2
CH3ONO Methyl nitrite rN=O 1.182   1.211 0.029 6 7
NSe Nitrogen monoselenide rN=Se 1.652   1.681 0.030 1 2
IF Iodine monofluoride rFI 1.910   1.940 0.030 1 2
C3H4O Cyclopropanone rCC 1.575   1.605 0.030 3 4
DO Hydroxyl-d rDO 0.970   1.000 0.030 1 2
GeF+ Germanium monofluoride cation rFGe 1.665 ±0.000 1.696 0.031 1 2
CF Fluoromethylidyne rCF 1.276   1.307 0.031 1 2
C5H10 2-Pentene, (Z)- rCH 1.058   1.089 0.031 12 13
N2O3 Dinitrogen trioxide rN=O 1.202   1.233 0.031 2 4
C2Cl2 dichloroacetylene rCCl 1.612 ±0.030 1.644 0.032 1 3
HClO4 perchloric acid rO=Cl 1.404 ±0.001 1.436 0.032 1 4
BF3 Borane, trifluoro- rBF 1.307   1.339 0.032 1 2
CH2C(CH3)OCH3 1-Propene, 2-methoxy- rCO 1.416   1.448 0.032 1 5
H2Te Hydrogen Telluride rHTe 1.651 ±0.000 1.684 0.032 1 2
C4H10O Propane, 2-methoxy- rCO 1.422   1.455 0.033 5 14
NO Nitric oxide rN=O 1.154 ±0.000 1.187 0.033 1 2
CH2O2 Dioxirane rCO 1.388 ±0.004 1.421 0.033 1 4
CCl2 dichloromethylene rCCl 1.711   1.744 0.033 1 2
CH3OCH3 Dimethyl ether rCO 1.411 ±0.001 1.444 0.033 1 2
CH3OC2H5 Ethane, methoxy- rCO 1.407 ±0.004 1.440 0.033 2 3
TeH Telluryl radical rHTe 1.656 ±0.000 1.689 0.033 1 2
SbH3 Stibine rSbH 1.700 ±0.000 1.734 0.034 1 2
NaCl Sodium Chloride rNaCl 2.361 ±0.000 2.394 0.034 1 2
GeCl Germanium monochloride rClGe 2.164 ±0.000 2.198 0.034 1 2
C3O2 Carbon suboxide rC=O 1.146   1.180 0.034 2 4
GeH3F monofluorogermane rGeH 1.515 ±0.000 1.549 0.034 1 3
DF Hydrofluoric acid-d rDF 0.917 ±0.000 0.952 0.035 1 2
CHF3 Methane, trifluoro- rCF 1.328 ±0.003 1.363 0.035 1 3
CrH Chromium hydride rHCr 1.655 ±0.001 1.690 0.035 1 2
C5H8 Bicyclo[2.1.0]pentane rCC 1.507   1.542 0.035 1 2
MgH magnesium monohydride rMgH 1.730   1.765 0.036 1 2
C5H8O Cyclopentanone rCC 1.504   1.540 0.036 2 3
CH3COCl Acetyl Chloride rCCl 1.798   1.834 0.036 1 4
ICl Iodine monochloride rClI 2.321 ±0.000 2.357 0.036 1 2
CH2F2 Methane, difluoro- rCF 1.351 ±0.001 1.387 0.037 1 4
CH3I methyl iodide rCI 2.136 ±0.002 2.173 0.037 1 2
CH2FCl fluorochloromethane rCCl 1.762 ±0.000 1.799 0.037 1 3
BeCl beryllium monochloride rBeCl 1.797   1.834 0.037 1 2
SF4 Sulfur tetrafluoride rSF 1.545 ±0.003 1.584 0.039 1 4
SeO Selenium monoxide rSeO 1.639 ±0.001 1.679 0.040 1 2
HF Hydrogen fluoride rHF 0.917 ±0.000 0.957 0.040 1 2
CaOH Calcium monohydroxide rOH 0.930 ±0.007 0.971 0.041 2 3
SeO2 Selenium dioxide rSeO 1.607 ±0.001 1.648 0.041 1 2
SO Sulfur monoxide rS=O 1.481   1.522 0.041 1 2
FNO2 Nitryl fluoride rN=O 1.180 ±0.005 1.222 0.042 1 3
CH2C(CH3)OCH3 1-Propene, 2-methoxy- rCO 1.353   1.395 0.042 5 10
SOF4 Sulfur tetrafluoride oxide rFS 1.539 ±0.003 1.581 0.042 1 5
MgCl magnesium monochloride rMgCl 2.199   2.242 0.043 1 2
HOCl hypochlorous acid rClO 1.697 ±0.001 1.740 0.043 1 3
CHF2Cl difluorochloromethane rCCl 1.747 ±0.010 1.791 0.044 1 3
C3H8O2 Methane, dimethoxy- rCO 1.382   1.426 0.044 1 4
PF+ phosphorus monofluoride cation rFP 1.500   1.545 0.045 1 2
NF nitrogen fluoride rNF 1.317   1.362 0.045 1 2
CaOH Calcium monohydroxide rOCa 1.976 ±0.004 2.021 0.045 1 2
ClFO3 Perchloryl fluoride rCl=O 1.400   1.446 0.046 2 3
F2O Difluorine monoxide rFO 1.405   1.451 0.046 1 2
CCl carbon monochloride rCCl 1.649   1.696 0.047 1 2
TeO Tellurium monoxide rO=Te 1.825   1.872 0.047 1 2
BF Boron monofluoride rBF 1.267 ±0.000 1.314 0.047 1 2
CH2NN diazomethane rN=N 1.139   1.188 0.049 2 3
HF+ hydrogen fluoride cation rHF 1.014   1.064 0.049 1 2
NaH sodium hydride rNaH 1.887 ±0.000 1.936 0.050 1 2
BrF3 Bromine trifluoride rFBr 1.721   1.771 0.050 1 2
LiH Lithium Hydride rLiH 1.595 ±0.000 1.649 0.054 1 2
FO Oxygen monofluoride rFO 1.354   1.408 0.054 1 2
ClOF3 Chlorine trifluoride oxide rFCl 1.603 ±0.004 1.658 0.055 1 3
HNO3 Nitric acid rNO 1.406   1.464 0.058 1 2
HO2 Hydroperoxy radical rOO 1.331   1.389 0.058 1 2
ClO Monochlorine monoxide rClO 1.596 ±0.001 1.655 0.059 1 2
ClFO3 Perchloryl fluoride rFCl 1.598   1.657 0.059 1 2
BrO Bromine monoxide rOBr 1.718   1.777 0.060 1 2
C5H6 Propellane rCC 1.596 ±0.005 1.658 0.062 2 5
BrF5 bromine pentafluoride rFBr 1.689 ±0.008 1.752 0.063 1 2
LiI Lithium Iodide rLiI 2.392 ±0.000 2.455 0.063 1 2
NO- nitric oxide anion rN=O 1.258 ±0.010 1.326 0.068 1 2
OH- hydroxide anion rOH 0.964   1.032 0.068 1 2
H2Cl+ dihydrogen monochloride cation rHCl 1.321 ±0.000 1.390 0.069 1 2
Li2 Lithium diatomic rLiLi 2.673   2.745 0.072 1 2
C4H10O Ethoxy ethane rCO 1.411   1.484 0.073 1 2
C4H8O2 Ethyl acetate rCO 1.448   1.522 0.074 5 6
NO+ nitric oxide cation rN=O 1.066   1.141 0.076 1 2
LiCl lithium chloride rLiCl 2.021 ±0.000 2.096 0.076 1 2
He2+ helium diatomic cation rHeHe 1.081 ±0.001 1.159 0.078 1 2
O2 Oxygen diatomic rO=O 1.208   1.286 0.079 1 2
KH Potassium hydride rKH 2.243 ±0.001 2.327 0.085 1 2
NCl nitrogen monochloride rNCl 1.611 ±0.000 1.697 0.086 1 2
CFCl chlorofluoromethylene rCCl 1.714   1.802 0.088 1 3
KCl Potassium Chloride rKCl 2.667 ±0.000 2.758 0.091 1 2
O2+ diatomic oxygen cation rOO 1.116   1.210 0.093 1 2
CaBr Calcium monobromide rCaBr 2.594 ±0.000 2.688 0.094 1 2
SiF4 Silicon tetrafluoride rSiF 1.554   1.713 0.159 1 2
CaH Calcium monohydride rCaH 2.003 ±0.000 2.173 0.171 1 2
AsF5 Arsenic pentafluoride rAsF 1.656 ±0.004 1.836 0.180 1 2
NO3 Nitrogen trioxide rNO 1.238   1.419 0.182 1 2
CaCl calcium monochloride rClCa 2.437   2.623 0.186 1 2
AsF5 Arsenic pentafluoride rAsF 1.711 ±0.005 1.919 0.208 1 5
CaO Calcium monoxide rOCa 1.822   2.035 0.213 1 2
Al2Cl6 Aluminum, di-μ-chlorotetrachlorodi- rAlCl 2.040 ±0.040 2.284 0.244 1 3
AlCl Aluminum monochloride rAlCl 2.130 ±0.000 2.420 0.289 1 2
CaF Calcium monofluoride rFCa 1.967 ±0.001 2.280 0.313 1 2
C4H10O Methyl propyl ether rCH 1.099   1.443 0.344 1 2
589 molecules.