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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 SVWN/3-21G

Species Name Bond type Bond Length (Å)
Experimental unc. Calculated Difference atom1 atom2
C4H10O Methyl propyl ether rCC 1.530   1.106 -0.424 5 13
GaAs Gallium arsenide rGa#As 2.530 ±0.020 2.306 -0.224 1 2
GaF Gallium monofluoride rFGa 1.774 ±0.000 1.684 -0.091 1 2
C4H5N Cyclopropanecarbonitrile rCC 1.472   1.383 -0.089 6 8
C4H5N (E)-2-Butenenitrile rCC 1.432   1.348 -0.084 8 10
NaF sodium fluoride rNaF 1.926 ±0.000 1.853 -0.073 1 2
C4H5NO 3-Methylisoxazole rCC 1.514   1.453 -0.060 1 8
C6H12 (E)-3-methylpent-2-ene rCC 1.551   1.494 -0.057 9 12
LiOH lithium hydroxide rLiO 1.582   1.528 -0.053 1 2
ScH Scandium monohydride rScH 1.775 ±0.000 1.725 -0.050 1 2
C4H5NO Isoxazole, 5-methyl- rCC 1.505   1.455 -0.050 1 5
C5H9N Pentanenitrile rCC 1.478   1.429 -0.049 4 6
LiF lithium fluoride rLiF 1.564 ±0.000 1.516 -0.048 1 2
C5H10 2-Pentene, (E)- rCC 1.576   1.529 -0.047 11 15
SiP Silicon monophosphide rSiP 2.078 ±0.002 2.033 -0.045 1 2
C2Cl2 dichloroacetylene rC#C 1.246 ±0.030 1.202 -0.044 1 2
GeF Germanium monofluoride rFGe 1.745   1.702 -0.044 1 2
C5H6 Bicyclo[2.1.0]pent-2-ene rCC 1.560   1.518 -0.042 3 5
Si2 Silicon diatomic rSiSi 2.246   2.205 -0.041 1 2
CH2ClCH2Cl Ethane, 1,2-dichloro- rCC 1.531   1.492 -0.039 1 2
C6H5OCH3 Anisole rCO 1.399   1.361 -0.038 1 7
TiCl Titanium Monochloride rClTi 2.265 ±0.000 2.227 -0.037 1 2
CF3COOH trifluoroacetic acid rCC 1.546 ±0.005 1.511 -0.035 1 2
MgOH magnesium hydroxide rMgO 1.767   1.732 -0.035 1 2
C6H6 Fulvene rCH 1.130 ±0.030 1.095 -0.035 2 7
CH3COCl Acetyl Chloride rCC 1.506   1.472 -0.034 1 2
LiNH2 lithium amide rLiN 1.736 ±0.003 1.704 -0.032 1 2
CH2CHCH2CH2Cl 1-Butene, 4-chloro- rCC 1.508   1.477 -0.031 2 6
GeH3F monofluorogermane rGeF 1.731 ±0.000 1.700 -0.031 1 2
C5H10 2-Pentene, (Z)- rCC 1.490   1.460 -0.030 8 14
CH2C(CH3)OCH3 1-Propene, 2-methoxy- rCH 1.087   1.058 -0.029 11 12
CH3CH(NH2)COOH Alanine rCC 1.544   1.516 -0.028 3 4
C5H10 2-Pentene, (Z)- rCC 1.561   1.534 -0.027 1 5
C5H8 Bicyclo[2.1.0]pentane rCC 1.536   1.509 -0.027 1 5
C5H6 1-Buten-3-yne, 2-methyl- rCC 1.445   1.419 -0.026 7 8
C5H8O Methyl cyclopropyl ketone rCH 1.126   1.100 -0.026 3 7
NH3BF3 Amminetrifluoroboron rBN 1.673   1.647 -0.026 1 2
C4H4N2 Succinonitrile rCC 1.561   1.536 -0.025 1 2
C3H6O Propylene oxide rCC 1.513   1.489 -0.024 2 6
C2H2O2 Ethanedial rCC 1.526   1.503 -0.023 1 2
CH3NH2 methyl amine rCN 1.471 ±0.003 1.449 -0.022 1 2
C5H10 2-Pentene, (Z)- rCH 1.058   1.036 -0.022 12 13
C9H8 Indene rCC 1.415 ±0.170 1.394 -0.021 1 2
CBrClF2 Methane, bromochlorodifluoro- rCBr 1.932 ±0.004 1.913 -0.019 1 2
C4H4N2 Succinonitrile rCC 1.465   1.448 -0.017 1 3
LiO lithium oxide rLiO 1.688   1.671 -0.017 1 2
C5H8 Ethenylcyclopropane rCC 1.475   1.459 -0.016 1 2
C5H8 1,3-Butadiene, 2-methyl- rCC 1.512   1.497 -0.015 2 5
C4H8O2 Ethyl acetate rCC 1.508   1.493 -0.015 1 2
LiCl- lithium chloride anion rLiCl 2.180   2.165 -0.015 1 2
C5H10 Cyclopropane, 1,1-dimethyl- rCC 1.514   1.500 -0.014 1 4
CH3CH2CHO Propanal rCC 1.509   1.495 -0.014 2 3
C2H2O2 Ethanedial rCH 1.132   1.119 -0.013 1 3
CH2ClCH2Cl Ethane, 1,2-dichloro- rCH 1.112   1.099 -0.013 1 5
CH3NC methyl isocyanide rCN 1.426 ±0.003 1.413 -0.013 1 2
C6H8 (Z)-hexa-1,3,5-triene rC=C 1.368   1.355 -0.013 1 2
C7H16 heptane rCC 1.534   1.522 -0.012 1 2
C5H8O Methyl cyclopropyl ketone rCC 1.510   1.498 -0.012 2 3
CH2CCHCH3 1,2-Butadiene rC=C 1.314   1.303 -0.011 1 2
C4H8O2 Ethyl acetate rCC 1.515   1.504 -0.011 5 6
C7H16 heptane rCH 1.121 ±0.007 1.110 -0.011 1 8
Si(CH3)4 tetramethylsilane rCH 1.115 ±7.000 1.105 -0.010 2 6
CH2NN diazomethane rC=N 1.300   1.290 -0.010 1 2
C8H8 cyclooctatetraene rCC 1.470 ±0.001 1.460 -0.010 1 5
C5H8 Cyclopentene rCC 1.518   1.508 -0.010 2 4
C3H7SH 1-Propanethiol rCC 1.529   1.520 -0.009 7 10
C10H8 Azulene rC:C 1.414   1.405 -0.009 7 9
CH3CH2CHO Propanal rCC 1.523   1.515 -0.008 1 2
MgO magnesium oxide rMgO 1.749   1.741 -0.008 1 2
C5H5N Pyridine rC:C 1.400   1.392 -0.008 2 5
C4H10O Ethoxy ethane rCC 1.517   1.509 -0.008 2 4
CH3CH2CH2CH3 Butane rCH 1.117   1.109 -0.008 1 5
C5H8 1,3-Butadiene, 2-methyl- rCC 1.463   1.455 -0.008 2 3
C6H6 Fulvene rC=C 1.349 ±0.002 1.341 -0.008 1 2
CH3CH2CH2CH3 Butane rCC 1.531   1.523 -0.008 1 2
CH2FCl fluorochloromethane rCF 1.370 ±0.001 1.363 -0.007 1 2
C4H8O2 Ethyl acetate rCH 1.105   1.098 -0.007 1 7
C3H4O Cyclopropanone rCC 1.575   1.569 -0.006 3 4
MgF Magnesium monofluoride rMgF 1.750   1.744 -0.006 1 2
C10H8 Azulene rC:C 1.398   1.392 -0.006 1 3
CH2CHCH2CH3 1-Butene rCC 1.536   1.530 -0.006 1 2
GeF+ Germanium monofluoride cation rFGe 1.665 ±0.000 1.660 -0.006 1 2
AsF Arsenic monofluoride rFAs 1.736 ±0.001 1.730 -0.006 1 2
AsF5 Arsenic pentafluoride rAsF 1.711 ±0.005 1.706 -0.005 1 5
C6H8 (Z)-hexa-1,3,5-triene rCH 1.104   1.099 -0.005 1 7
HNCNH diiminomethane rC=N 1.224 ±0.001 1.219 -0.005 1 2
CFCl3 Trichloromonofluoromethane rCF 1.345 ±0.003 1.340 -0.005 1 2
C6H5OH phenol rC:C 1.398   1.393 -0.005 1 2
C6H5OCH3 Anisole rCO 1.433   1.429 -0.004 7 8
C5H8 Ethenylcyclopropane rCH 1.099   1.095 -0.004 1 6
N(CH3)3 Trimethylamine rCH 1.109   1.105 -0.004 2 8
C4H4N2 1,3-Diazine rC:N 1.350   1.346 -0.004 3 5
CH3COCl Acetyl Chloride rCH 1.105   1.102 -0.003 2 5
C3H5ClO Oxirane, (chloromethyl)- rCC 1.475   1.472 -0.003 3 4
C5H10 2-Pentene, (E)- rCC 1.484   1.481 -0.003 4 11
C2H Ethynyl radical rC#C 1.217   1.214 -0.003 1 2
C3F6 hexafluoropropene rC=C 1.329 ±0.003 1.326 -0.003 1 2
CHF2Cl difluorochloromethane rCF 1.350 ±0.010 1.348 -0.002 1 4
C8H8 cubane rCH 1.097   1.095 -0.002 1 9
C6H6 Fulvene rCC 1.476 ±0.008 1.475 -0.001 5 6
CH2CHCH2CH3 1-Butene rCC 1.493   1.493 0.000 2 3
B2H6 Diborane rBH 1.320   1.320 0.000 1 3
C5H10 2-Pentene, (Z)- rCH 1.092   1.092 0.000 1 2
B2H6 Diborane rBH 1.200   1.200 0.000 1 5
CH3CH2CHO Propanal rCH 1.103   1.103 0.000 1 6
Cu2 Copper diatomic rCuCu 2.220   2.220 0.000 1 2
C10H8 Azulene rC:C 1.405 ±0.001 1.405 0.000 2 9
C2H3Cl Ethene, chloro- rCH 1.090   1.091 0.001 1 4
C4H6 Bicyclo[1.1.0]butane rCC 1.497   1.498 0.001 1 2
C5H8 Cyclobutane, methylene- rCC 1.524   1.525 0.001 1 3
C6H6 Fulvene rC=C 1.355 ±0.004 1.356 0.001 3 5
C5H5N Pyridine rC:C 1.390   1.391 0.001 3 5
C5H8O 2H-Pyran, 3,4-dihydro- rCC 1.516   1.517 0.001 10 13
C2H5F fluoroethane rCC 1.505 ±0.007 1.507 0.002 1 2
C5H6 Bicyclo[2.1.0]pent-2-ene rCC 1.530   1.532 0.002 1 3
C6H6 Fulvene rCC 1.470 ±0.004 1.472 0.002 1 3
C8H8 cyclooctatetraene rC=C 1.337 ±0.001 1.339 0.002 1 2
C4H10O Propane, 2-methoxy- rCH 1.095   1.097 0.002 1 2
C6H10 1-Butyne, 3,3-dimethyl- rC#C 1.209 ±0.001 1.212 0.003 1 6
NaCl Sodium Chloride rNaCl 2.361 ±0.000 2.364 0.003 1 2
C4H6O Cyclobutanone rCC 1.556   1.559 0.003 3 5
CrH Chromium hydride rHCr 1.655 ±0.001 1.658 0.003 1 2
C3H4N2 1H-Pyrazole rCH 1.083   1.086 0.003 5 6
CH3ONO Methyl nitrite rCH 1.102   1.105 0.003 1 4
C2- carbon diatomic anion rC#C 1.268 ±0.000 1.272 0.004 1 2
GeO Germanium monoxide rOGe 1.625   1.629 0.004 1 2
C3H4N2 1H-Pyrazole rCH 1.082   1.086 0.004 1 2
CH2PH Phosphaethene rCH 1.090 ±0.015 1.095 0.005 1 3
C6H8 (Z)-hexa-1,3,5-triene rC=C 1.337   1.342 0.005 3 5
CH3CH2OH Ethanol rCH 1.098   1.103 0.005 1 6
C3H4N2 1H-Pyrazole rCH 1.080   1.085 0.005 3 4
C10H8 naphthalene rC:C 1.410   1.415 0.005 2 3
CH3OCHO methyl formate rCH 1.101   1.106 0.005 3 8
C2H2 Acetylene rC#C 1.203   1.208 0.005 1 2
C3F6 hexafluoropropene rCF 1.329 ±0.003 1.334 0.005 1 4
C4H4N2 1,3-Diazine rCH 1.087   1.093 0.006 1 7
C10H8 Azulene rC:C 1.377   1.383 0.006 5 7
CH2PH Phosphaethene rCH 1.090 ±0.015 1.096 0.006 1 4
C3H6O 2-Propen-1-ol rCH 1.092 ±0.010 1.098 0.006 2 7
CH3CH2CHO Propanal rCH 1.096   1.102 0.006 1 5
CH3CH2CHO Propanal rCH 1.105   1.111 0.006 2 8
C3H6O 2-Propen-1-ol rCH 1.091 ±0.010 1.097 0.006 3 9
CH3CH(NH2)COOH Alanine rCC 1.509   1.515 0.006 2 3
C2H2+ acetylene cation rC=C 1.253 ±0.001 1.259 0.006 1 2
C5H8 Bicyclo[2.1.0]pentane rCC 1.528   1.535 0.007 1 3
H2CSe Selenoformaldehyde rHC 1.090   1.097 0.007 1 3
C5H8 Bicyclo[2.1.0]pentane rCC 1.565   1.572 0.007 3 4
CH2NH Methanimine rCH 1.103   1.110 0.007 1 3
C2H5F fluoroethane rCF 1.398 ±0.007 1.405 0.007 1 3
CH3SCH2CH3 Ethane, (methylthio)- rCH 1.097   1.104 0.007 5 6
CH3NO nitrosomethane rCH 1.094   1.101 0.007 1 4
C3H7SH 1-Propanethiol rCH 1.092   1.099 0.007 5 7
C4H6 Cyclobutene rCH 1.083   1.090 0.007 1 5
CH2 Methylene rCH 1.085   1.092 0.007 1 2
C4H6 Cyclobutene rCC 1.517   1.524 0.007 1 3
CH2C(CH3)CH3 1-Propene, 2-methyl- rCH 1.088   1.095 0.007 2 3
CH3CH(CH3)CH3 Isobutane rCH 1.100   1.108 0.008 3 6
CH3CH2CHO Propanal rCH 1.115   1.123 0.008 3 10
CH3ONO Methyl nitrite rCH 1.090   1.098 0.008 1 3
CH3NO3 Methyl nitrate rCH 1.095   1.103 0.008 5 8
CH2O2 Dioxirane rCH 1.090 ±0.002 1.099 0.008 1 2
CH2CO Ketene rCH 1.083   1.091 0.009 1 4
C6H12 Cyclohexane rCH 1.101   1.110 0.009 1 7
CH3NH2 methyl amine rNH 1.018 ±0.001 1.027 0.009 2 6
C4H6 Cyclobutene rCH 1.094   1.103 0.009 3 7
CH3COCl Acetyl Chloride rC=O 1.187   1.196 0.009 1 3
C3H3NO Oxazole rCH 1.075 ±0.001 1.084 0.009 2 6
C3H6 Cyclopropane rCH 1.083   1.092 0.009 1 4
C4H6S Thiophene, 2,5-dihydro- rCH 1.095   1.104 0.009 2 6
C3H4 cyclopropene rCH 1.072   1.081 0.009 2 4
C6H5OH phenol rCO 1.364   1.373 0.009 1 7
C3H3NO Oxazole rCH 1.075 ±0.001 1.085 0.009 4 7
CH3NHCH3 Dimethylamine rCH 1.098   1.107 0.009 3 7
C3H3NO Oxazole rCH 1.073 ±0.001 1.083 0.010 5 8
C3H4 cyclopropene rCH 1.088   1.098 0.010 1 6
C2H2ClF 1-chloro-1-fluoroethylene rCH 1.082 ±0.001 1.092 0.010 2 5
CH3NC methyl isocyanide rCH 1.094   1.104 0.010 1 4
CH3CHFCH3 2-Fluoropropane rCH 1.093 ±0.006 1.103 0.010 4 8
CH2Cl2 Methylene chloride rCH 1.085 ±0.002 1.095 0.010 1 2
CH3CHO Acetaldehyde rCH 1.114   1.124 0.010 1 4
C6H6 Fulvene rCH 1.080 ±0.005 1.090 0.010 5 11
CH2FCl fluorochloromethane rCH 1.090 ±0.010 1.100 0.010 1 4
H2CSe Selenoformaldehyde rC=Se 1.753   1.763 0.010 1 2
C2H5N Aziridine rCH 1.083   1.093 0.010 3 5
C2H2 Acetylene rCH 1.063   1.073 0.010 1 3
CH3CCH propyne rCH 1.096   1.106 0.010 1 5
C10H8 Azulene rCH 1.080   1.090 0.010 9 17
C3H6 Cyclopropane rCC 1.501   1.511 0.010 1 2
CH3CHFCH3 2-Fluoropropane rCH 1.094 ±0.005 1.104 0.010 4 10
OCSe Carbonyl selenide rC=Se 1.709   1.719 0.010 1 3
CH3OC2H5 Ethane, methoxy- rCH 1.092 ±0.007 1.103 0.011 4 11
C4H10O Ethoxy ethane rCH 1.092   1.103 0.011 4 10
CH3CHClCH3 Propane, 2-chloro- rCH 1.091   1.102 0.011 2 5
C6H8 1,4-Cyclohexadiene rCH 1.100   1.111 0.011 1 11
C6H6 Fulvene rCH 1.078 ±0.005 1.089 0.011 3 9
C6H5OH phenol rCH 1.082   1.093 0.011 4 11
CH3CHS Thioacetaldehyde rCH 1.090   1.101 0.011 2 5
C3H8 Propane rCH 1.096   1.107 0.011 1 4
ClCN chlorocyanogen rC#N 1.161   1.172 0.011 2 3
HCCCN Cyanoacetylene rCH 1.062 ±0.001 1.074 0.011 4 5
CH3OCHO methyl formate rCH 1.086   1.097 0.011 1 5
SCSe Carbon sulfide selenide rC=Se 1.695 ±0.002 1.706 0.011 1 3
C5H5N Bicyclo[1.1.0]butane-1-carbonitrile rCC 1.518   1.529 0.011 3 7
C6H5OH phenol rCH 1.084   1.095 0.011 2 9
C4H6 Methylenecyclopropane rCC 1.457   1.469 0.012 2 5
CH3SCH2CH3 Ethane, (methylthio)- rCH 1.090   1.102 0.012 9 11
CHF3 Methane, trifluoro- rCH 1.091 ±0.014 1.103 0.012 1 2
CH3CHS Thioacetaldehyde rCH 1.098   1.110 0.012 2 6
C3H4O Methylketene rCH 1.083   1.095 0.012 2 5
CH3CCH propyne rCH 1.060   1.072 0.012 3 4
CH3SCH2CH3 Ethane, (methylthio)- rCH 1.092   1.104 0.012 1 3
C2H5F fluoroethane rCH 1.091 ±0.007 1.103 0.012 2 6
C2H5N Aziridine rCH 1.084   1.096 0.012 3 6
CCl2O Phosgene rC=O 1.177   1.189 0.012 1 2
C4H4N2 1,3-Diazine rCH 1.082   1.094 0.012 2 8
CN Cyano radical rC#N 1.172   1.184 0.013 1 2
C10H8 Azulene rCH 1.084   1.097 0.013 4 14
C5H7N Cyclobutanecarbonitrile rCC 1.551   1.564 0.013 3 6
C4H10O Ethoxy ethane rCH 1.090   1.103 0.013 4 12
C2H5F fluoroethane rCH 1.090 ±0.007 1.103 0.013 2 7
C3H7SH 1-Propanethiol rCH 1.090   1.103 0.013 8 10
N3 azide radical rNN 1.181   1.194 0.013 1 2
CH3SCH2CH3 Ethane, (methylthio)- rCH 1.089   1.102 0.013 9 10
CH3NO nitrosomethane rCH 1.092   1.105 0.013 1 5
C6H12 Cyclohexane rCH 1.093   1.106 0.013 1 13
NaBr Sodium Bromide rNaBr 2.502 ±0.000 2.515 0.013 1 2
CH2NN diazomethane rCH 1.075   1.088 0.013 1 4
CH3CH(CH3)CH3 Isobutane rCH 1.092   1.105 0.013 3 9
CH3NO3 Methyl nitrate rCH 1.088   1.101 0.013 5 6
C2 Carbon diatomic rC=C 1.243   1.256 0.013 1 2
CH3CH2Cl Ethyl chloride rCH 1.086   1.100 0.013 2 7
CH3CHS Thioacetaldehyde rCH 1.089   1.103 0.014 1 4
BH+ boron monohydride cation rBH 1.215   1.228 0.014 1 2
CH3OC2H5 Ethane, methoxy- rCH 1.089 ±0.008 1.103 0.014 4 10
BeF Beryllium monofluoride rBeF 1.361   1.375 0.014 1 2
ICN Cyanogen iodide rC#N 1.160 ±0.000 1.174 0.014 2 3
CH4 Methane rCH 1.087 ±0.001 1.101 0.014 1 2
CH2C(CH3)OCH3 1-Propene, 2-methoxy- rCO 1.353   1.367 0.014 5 10
C5H10 Cyclopropane, 1,1-dimethyl- rCH 1.080   1.094 0.014 2 6
CH2CHF Ethene, fluoro- rCH 1.082   1.096 0.014 1 4
C10H8 Azulene rC:C 1.484   1.498 0.014 7 8
C2H5I Ethyl iodide rHC 1.093   1.107 0.014 2 6
C2H3Cl Ethene, chloro- rCH 1.079   1.093 0.014 2 5
C2H5F fluoroethane rCH 1.095 ±0.007 1.109 0.014 1 4
LiOH lithium hydroxide rOH 0.969   0.984 0.014 1 3
C5H6 Propellane rCC 1.525 ±0.002 1.539 0.014 1 2
CH3CH2OH Ethanol rCH 1.088   1.103 0.015 1 5
CH3CHO Acetaldehyde rCH 1.086   1.101 0.015 2 5
CH3ONO Methyl nitrite rCO 1.437   1.452 0.015 1 2
CH3CHClCH3 Propane, 2-chloro- rCH 1.092   1.107 0.015 3 6
CH3CHFCH3 2-Fluoropropane rCH 1.088 ±0.006 1.103 0.015 4 6
CSe2 Carbon diselenide rC=Se 1.692 ±0.000 1.707 0.015 1 2
CH2CHF Ethene, fluoro- rCH 1.077   1.092 0.015 2 5
CH3Br methyl bromide rCH 1.082 ±0.001 1.097 0.015 1 3
CH3OC2H5 Ethane, methoxy- rCH 1.099 ±0.007 1.114 0.015 1 6
C4H6O Cyclobutanone rCC 1.527   1.542 0.015 2 3
C2H2+ acetylene cation rCH 1.077 ±0.005 1.092 0.015 1 3
C4H10O Ethoxy ethane rCH 1.100   1.115 0.015 2 6
CH3OCH3 Dimethyl ether rCH 1.099 ±0.001 1.114 0.015 2 6
C5H12O Butane, 1-methoxy- rCO 1.415   1.430 0.015 3 4
BH3 boron trihydride rBH 1.190   1.206 0.016 1 2
CH3OC2H5 Ethane, methoxy- rCO 1.415 ±0.005 1.431 0.016 1 2
CH3OC2H5 Ethane, methoxy- rCH 1.100 ±0.003 1.116 0.016 3 8
C3H6O 2-Propen-1-ol rCH 1.102 ±0.020 1.118 0.016 1 6
C4H4N2 1,3-Diazine rC:N 1.328   1.344 0.016 2 6
CH3OC2H5 Ethane, methoxy- rCH 1.086 ±0.010 1.102 0.016 1 5
SiH2Cl2 dichlorosilane rSiH 1.480 ±0.015 1.496 0.016 1 2
CH3CH2Cl Ethyl chloride rCH 1.090   1.106 0.016 1 3
C3H6O 2-Propen-1-ol rCH 1.078 ±0.010 1.094 0.016 3 8
C6H10 1-Butyne, 3,3-dimethyl- rCH 1.056 ±0.001 1.072 0.016 6 7
CH3OCH3 Dimethyl ether rCH 1.085 ±0.001 1.102 0.017 2 4
C4H4N2 1,3-Diazine rCH 1.079   1.096 0.017 3 9
AlNC Aluminum isocyanide rAlN 1.855 ±0.005 1.872 0.017 1 2
C10H8 Azulene rCH 1.083   1.100 0.017 5 15
C10H8 Azulene rCH 1.081   1.098 0.017 1 11
CH3SCH2CH3 Ethane, (methylthio)- rCH 1.087   1.104 0.017 1 2
NaH sodium hydride rNaH 1.887 ±0.000 1.904 0.018 1 2
NH4+ ammonium cation rHN 1.029 ±0.000 1.047 0.018 1 2
C3H8O2 Methane, dimethoxy- rCO 1.432   1.450 0.018 4 6
C6H5OH phenol rCH 1.076   1.094 0.018 3 10
C3O2 Carbon suboxide rC=C 1.251   1.269 0.018 1 2
CN- cyanide anion rC#N 1.177 ±0.004 1.195 0.018 1 2
CH3CHFCH3 2-Fluoropropane rCH 1.092   1.111 0.019 1 3
ICN Cyanogen iodide rCI 1.992 ±0.000 2.011 0.019 1 2
C3H4O Methylketene rCH 1.083   1.102 0.019 3 6
C3H6O 2-Propen-1-ol rCH 1.096 ±0.030 1.115 0.019 1 5
CH3NHCH3 Dimethylamine rCH 1.084   1.104 0.020 3 9
CH3OCH3 Dimethyl ether rCO 1.411 ±0.001 1.431 0.020 1 2
CH3NC methyl isocyanide rC#N 1.166 ±0.003 1.186 0.020 2 3
CBr4 Carbon tetrabromide rCBr 1.942 ±0.002 1.962 0.020 1 2
C4H8O2 1,3-Dioxane rCO 1.393   1.413 0.020 1 2
N2 Nitrogen diatomic rN#N 1.098   1.118 0.020 1 2
GaBr Gallium monobromide rGaBr 2.352 ±0.000 2.373 0.021 1 2
NaLi lithium sodium rLiNa 2.889   2.910 0.021 1 2
C8H8 cyclooctatetraene rCH 1.079 ±0.001 1.100 0.021 1 9
C2HF3 Trifluoroethylene rCF 1.316 ±0.011 1.337 0.021 1 3
CHONH2 formamide rNH 1.001   1.022 0.021 3 6
Si(CH3)4 tetramethylsilane rSiC 1.875 ±0.002 1.897 0.022 1 2
NH2CONH2 Urea rNH 0.998   1.019 0.022 4 8
C2H3 vinyl rCH 1.085   1.107 0.022 2 4
OCSe Carbonyl selenide rC=O 1.159   1.181 0.022 1 2
CH2NN diazomethane rN=N 1.139   1.162 0.023 2 3
CH3NHCH3 Dimethylamine rCH 1.098   1.121 0.023 3 5
CuO Copper Monoxide rCuO 1.724 ±0.000 1.748 0.023 1 2
C5H8O Cyclopentanone rCC 1.504   1.527 0.023 2 3
CHONH2 formamide rNH 1.001   1.025 0.024 3 5
C4H8O2 Ethyl acetate rC=O 1.203   1.227 0.024 2 4
C3H3NO Oxazole rCO 1.370 ±0.002 1.394 0.024 1 5
CH2F2 Methane, difluoro- rCH 1.084 ±0.003 1.109 0.025 1 2
D2 Deuterium diatomic rDD 0.742   0.767 0.025 1 2
H2 Hydrogen diatomic rHH 0.741   0.767 0.025 1 2
HD Deuterium hydride rDH 0.741   0.767 0.025 1 2
N2O3 Dinitrogen trioxide rN=O 1.217   1.242 0.025 2 5
CH2CO Ketene rC=O 1.162   1.187 0.025 2 3
C3H7N Cyclopropylamine rCH 1.080   1.105 0.025 1 2
C3H3NO Oxazole rCO 1.357 ±0.003 1.383 0.026 1 2
BF3 Borane, trifluoro- rBF 1.307   1.333 0.026 1 2
BeS beryllium sulfide rBe=S 1.742   1.767 0.026 1 2
NO+ nitric oxide cation rN=O 1.066   1.092 0.026 1 2
C4H10O Ethoxy ethane rCO 1.411   1.437 0.026 1 2
CH3OCHO methyl formate rCO 1.437   1.463 0.026 1 2
CF3COOH trifluoroacetic acid rC=O 1.192 ±0.003 1.218 0.026 2 4
SiH4 Silane rSiH 1.480 ±0.000 1.506 0.026 1 2
CH2F2 Methane, difluoro- rCF 1.351 ±0.001 1.377 0.027 1 4
SiHCl3 Trichlorosilane rSiH 1.464   1.491 0.027 1 2
AsF5 Arsenic pentafluoride rAsF 1.656 ±0.004 1.683 0.027 1 2
SiH3Cl chlorosilane rSiH 1.475   1.502 0.027 1 3
BeH2 beryllium dihydride rBeH 1.326 ±0.000 1.353 0.027 1 2
CO+ carbon monoxide cation rC=O 1.115 ±0.000 1.142 0.027 1 2
CH3NH2 methyl amine rCH 1.093 ±0.000 1.120 0.027 1 3
C2H Ethynyl radical rCH 1.047   1.074 0.028 1 3
C4H8O2 Ethyl acetate rCO 1.345   1.373 0.028 2 3
CH3OCHO methyl formate rCO 1.334   1.362 0.028 2 3
AlF Aluminum monofluoride rAlF 1.654 ±0.000 1.683 0.028 1 2
CO Carbon monoxide rC#O 1.128 ±0.000 1.157 0.028 1 2
CH3CH2OH Ethanol rCH 1.086   1.115 0.029 2 8
C4H4N2 Pyridazine rCH 1.064   1.093 0.029 1 5
CHF3 Methane, trifluoro- rCF 1.328 ±0.003 1.357 0.029 1 3
CH2Br2 dibromomethane rCBr 1.925 ±0.002 1.954 0.029 1 4
AsH Arsenic monohydride rAsH 1.535 ±0.001 1.564 0.029 1 2
C4H10O Propane, 2-methoxy- rCO 1.422   1.451 0.029 5 14
CHBr3 bromoform rCBr 1.924 ±0.005 1.954 0.030 1 3
CH3OC2H5 Ethane, methoxy- rCO 1.407 ±0.004 1.437 0.030 2 3
B2 Boron diatomic rBB 1.590   1.620 0.030 1 2
C3H5 Allyl radical rCH 1.069   1.099 0.030 1 2
CH2I2 Diiodomethane rCH 1.066 ±0.015 1.096 0.030 1 4
BS boron sulfide rBS 1.609   1.640 0.031 1 2
BN boron nitride rB=N 1.325   1.356 0.031 1 2
F2 Fluorine diatomic rFF 1.412   1.443 0.031 1 2
SiH3F monofluorosilane rSiH 1.476   1.507 0.031 1 3
C5H5N Bicyclo[1.1.0]butane-1-carbonitrile rCC 1.514   1.545 0.031 3 9
GeH3F monofluorogermane rGeH 1.515 ±0.000 1.546 0.031 1 3
HCCl Chloromethylene rCH 1.119 ±0.036 1.150 0.031 1 3
LiBr Lithium Bromide rLiBr 2.170 ±0.000 2.202 0.032 1 2
HNCO Isocyanic acid rC=O 1.164   1.196 0.032 3 4
CH2C(CH3)OCH3 1-Propene, 2-methoxy- rCO 1.416   1.448 0.032 1 5
CH3Br methyl bromide rCBr 1.934 ±0.000 1.967 0.033 1 2
HSe Selenium monohydride rSeH 1.475 ±0.010 1.508 0.033 1 2
CuF Copper monofluoride rCuF 1.745 ±0.000 1.778 0.033 1 2
CH3SeH Methane selenol rSeH 1.473 ±0.020 1.507 0.034 1 3
FNO2 Nitryl fluoride rNF 1.467 ±0.015 1.501 0.034 1 2
BrF5 bromine pentafluoride rFBr 1.774 ±0.003 1.808 0.034 1 3
BeO beryllium oxide rBe=O 1.331   1.365 0.034 1 2
N(CH3)3 Trimethylamine rCH 1.088   1.122 0.034 2 5
BeH beryllium monohydride rBeH 1.343   1.377 0.034 1 2
BO boron monoxide rB=O 1.205   1.240 0.035 1 2
SCSe Carbon sulfide selenide rC=S 1.553 ±0.002 1.590 0.037 1 2
SiH3+ Silyl cation rSiH 1.460 ±0.010 1.497 0.037 1 2
SiH2F2 difluorosilane rSiH 1.462   1.499 0.037 1 4
MgOH magnesium hydroxide rOH 0.940   0.978 0.038 1 3
NH2F monofluoroamine rNF 1.433   1.471 0.038 1 2
BF Boron monofluoride rBF 1.267 ±0.000 1.305 0.039 1 2
BeCl beryllium monochloride rBeCl 1.797   1.836 0.039 1 2
H2Cl+ dihydrogen monochloride cation rHCl 1.321 ±0.000 1.360 0.039 1 2
CP Carbon monophosphide rC#P 1.562   1.602 0.040 1 2
GeH germylidene rGeH 1.588   1.629 0.041 1 2
H2CS Thioformaldehyde rC=S 1.611   1.651 0.041 1 2
AlN Aluminum nitride rN#Al 1.786   1.827 0.041 1 2
AsH3 Arsine rAsH 1.511 ±0.000 1.553 0.042 1 2
HClO4 perchloric acid rOH 0.980   1.022 0.042 3 6
C3O2 Carbon suboxide rC=O 1.146   1.189 0.043 2 4
BH Boron monohydride rBH 1.232   1.275 0.043 1 2
H2Se Hydrogen selenide rSeH 1.460   1.503 0.043 1 2
KF Potassium Fluoride rKF 2.171 ±0.000 2.215 0.043 1 2
C5H8 Bicyclo[2.1.0]pentane rCC 1.507   1.551 0.044 1 2
C3H8O2 Methane, dimethoxy- rCO 1.382   1.426 0.044 1 4
AlO Aluminum monoxide rAlO 1.618   1.662 0.044 1 2
NO Nitric oxide rN=O 1.154 ±0.000 1.198 0.044 1 2
CF Fluoromethylidyne rCF 1.276   1.321 0.045 1 2
HOCl hypochlorous acid rOH 0.973 ±0.002 1.018 0.045 1 2
P2H4 Diphosphine rPH 1.417   1.462 0.045 1 3
P2H4 Diphosphine rPH 1.414   1.459 0.045 1 4
GeBr4 Germanium tetrabromide rGeBr 2.272 ±0.001 2.317 0.045 1 2
FNO2 Nitryl fluoride rN=O 1.180 ±0.005 1.225 0.045 1 3
H2O Water rOH 0.958 ±0.000 1.003 0.045 1 2
CH Methylidyne rCH 1.120   1.165 0.045 1 2
CI4 tetraiodomethane rCI 2.157 ±0.010 2.203 0.046 1 2
LiI Lithium Iodide rLiI 2.392 ±0.000 2.438 0.046 1 2
C5H6 Propellane rCC 1.596 ±0.005 1.643 0.047 2 5
CSe Carbon monoselenide rC=Se 1.676 ±0.000 1.723 0.047 1 2
CH2O2 Dioxirane rOO 1.516 ±0.003 1.563 0.047 4 5
N2O3 Dinitrogen trioxide rN=O 1.202   1.249 0.047 2 4
N2O3 Dinitrogen trioxide rN=O 1.142   1.189 0.047 1 3
HS+ sulfur monohydride cation rSH 1.374   1.422 0.047 1 2
CH3ONO Methyl nitrite rN=O 1.182   1.230 0.048 6 7
HBr hydrogen bromide rHBr 1.414 ±0.000 1.463 0.048 1 2
HOI Hypoiodous acid rOH 0.967 ±0.008 1.015 0.048 1 3
SiC silicon monocarbide rCSi 1.722   1.771 0.049 1 2
HSiCl Chlorosilylene rSiH 1.525 ±0.005 1.574 0.049 1 3
SiN Silicon nitride rSiN 1.575   1.624 0.049 1 2
PH+ phosphorus monohydride cation rPH 1.435   1.484 0.049 1 2
MgH magnesium monohydride rMgH 1.730   1.779 0.049 1 2
SiF4 Silicon tetrafluoride rSiF 1.554   1.604 0.050 1 2
CH3CSNH2 Ethanethioamide rC=S 1.647 ±0.002 1.697 0.050 1 2
MgH+ magnesium monohydride cation rMgH 1.652   1.702 0.051 1 2
LiH Lithium Hydride rLiH 1.595 ±0.000 1.646 0.051 1 2
MgS magnesium sulfide rMgS 2.143   2.194 0.051 1 2
SbH3 Stibine rSbH 1.700 ±0.000 1.752 0.052 1 2
NH+ imidogen cation rNH 1.070 ±0.001 1.122 0.052 1 2
NO3 Nitrogen trioxide rNO 1.238   1.290 0.052 1 2
HCl Hydrogen chloride rHCl 1.275 ±0.000 1.327 0.052 1 2
HO2 Hydroperoxy radical rOH 0.971   1.023 0.052 1 3
DCl Hydrochloric acid-d rDCl 1.275 ±0.000 1.327 0.052 1 2
PF5 Phosphorus pentafluoride rFP 1.577   1.630 0.053 1 5
ClCN chlorocyanogen rCCl 1.629   1.682 0.053 1 2
HS- mercapto anion rSH 1.343   1.396 0.053 1 2
HS Mercapto radical rSH 1.341   1.394 0.053 1 2
DS Mercapto-d rSD 1.341   1.394 0.053 1 2
HOBr Hypobromous acid rOH 0.961   1.015 0.054 1 2
CaOH Calcium monohydroxide rOH 0.930 ±0.007 0.984 0.054 2 3
CHClCCl2 Trichloroethylene rCCl 1.712   1.766 0.054 2 6
KH Potassium hydride rKH 2.243 ±0.001 2.297 0.055 1 2
LiCl lithium chloride rLiCl 2.021 ±0.000 2.076 0.055 1 2
NH Imidogen rNH 1.036   1.092 0.056 1 2
H2Te Hydrogen Telluride rHTe 1.651 ±0.000 1.707 0.056 1 2
C4H8O2 Ethyl acetate rCO 1.448   1.504 0.056 5 6
PH phosphorus monohydride rPH 1.422   1.479 0.056 1 2
DF Hydrofluoric acid-d rDF 0.917 ±0.000 0.974 0.057 1 2
OH Hydroxyl radical rOH 0.970   1.027 0.057 1 2
DO Hydroxyl-d rDO 0.970   1.027 0.057 1 2
TeH Telluryl radical rHTe 1.656 ±0.000 1.713 0.057 1 2
HF Hydrogen fluoride rHF 0.917 ±0.000 0.974 0.058 1 2
HBr+ hydrogen bromide cation rHBr 1.448   1.507 0.058 1 2
SiF silicon monofluoride rSiF 1.604   1.663 0.059 1 2
SiF2 Silicon difluoride rFSi 1.590 ±0.000 1.649 0.059 1 2
NSe Nitrogen monoselenide rN=Se 1.652   1.711 0.060 1 2
CHClCCl2 Trichloroethylene rCCl 1.720   1.780 0.060 2 5
SiH3F monofluorosilane rSiF 1.595   1.654 0.060 1 2
FO Oxygen monofluoride rFO 1.354   1.414 0.060 1 2
SiH Silylidyne rSiH 1.520   1.581 0.061 1 2
CS carbon monosulfide rC#S 1.535   1.596 0.061 1 2
AlC Aluminum carbide rC=Al 1.955   2.016 0.061 1 2
F2O Difluorine monoxide rFO 1.405   1.466 0.061 1 2
HOBr Hypobromous acid rBrO 1.834   1.895 0.061 2 3
SeO2 Selenium dioxide rSeO 1.607 ±0.001 1.668 0.061 1 2
AlH+ aluminum monohydride cation rAlH 1.602   1.663 0.062 1 2
SiH+ silicon monohydride cation rSiH 1.504   1.566 0.062 1 2
ArH+ Argon hydride cation rArH 1.292 ±0.000 1.354 0.062 1 2
CH3SCH2CH3 Ethane, (methylthio)- rCS 1.804   1.867 0.063 8 9
CH2O2 Dioxirane rCO 1.388 ±0.004 1.451 0.063 1 4
BrF5 bromine pentafluoride rFBr 1.689 ±0.008 1.752 0.063 1 2
HCl+ hydrogen chloride cation rHCl 1.315   1.379 0.064 1 2
BCl boron monochloride rBCl 1.719 ±0.000 1.784 0.064 1 2
KCl Potassium Chloride rKCl 2.667 ±0.000 2.731 0.065 1 2
NF nitrogen fluoride rNF 1.317   1.382 0.065 1 2
Li2 Lithium diatomic rLiLi 2.673   2.738 0.065 1 2
PN Phosphorus mononitride rP#N 1.491   1.557 0.066 1 2
BrF Bromine monofluoride rFBr 1.759 ±0.000 1.825 0.067 1 2
SeO Selenium monoxide rSeO 1.639 ±0.001 1.706 0.067 1 2
NH2SH Thiohydroxylamine rSH 1.344 ±0.029 1.412 0.068 2 3
AlH aluminum monohydride rAlH 1.648   1.716 0.068 1 2
HF+ hydrogen fluoride cation rHF 1.014   1.084 0.070 1 2
SiO Silicon monoxide rSiO 1.510 ±0.000 1.580 0.071 1 2
KrH+ Protonated Krypton rHKr 1.421 ±0.000 1.492 0.071 1 2
BrF3 Bromine trifluoride rFBr 1.810 ±0.000 1.881 0.071 1 3
CH3SCH2CH3 Ethane, (methylthio)- rCS 1.804   1.876 0.072 5 8
GeS Germanium monosulfide rS=Ge 2.012 ±0.000 2.085 0.073 1 2
CH2Cl2 Methylene chloride rCCl 1.767 ±0.002 1.841 0.074 1 4
CaOH Calcium monohydroxide rOCa 1.976 ±0.004 2.050 0.074 1 2
HO2 Hydroperoxy radical rOO 1.331   1.405 0.074 1 2
HNO3 Nitric acid rNO 1.406   1.481 0.075 1 2
C2Cl2 dichloroacetylene rCCl 1.612 ±0.030 1.687 0.075 1 3
AlS Aluminum sulfide rAlS 2.029   2.104 0.075 1 2
HOI Hypoiodous acid rOI 1.994 ±0.000 2.070 0.076 1 2
PF5 Phosphorus pentafluoride rPF 1.534   1.611 0.077 1 2
GeCl Germanium monochloride rClGe 2.164 ±0.000 2.241 0.077 1 2
NS+ nitrogen sulfide cation rNS 1.440   1.517 0.077 1 2
CFCl3 Trichloromonofluoromethane rCCl 1.764 ±0.001 1.841 0.077 1 3
P2 Phosphorus diatomic rP#P 1.893   1.972 0.079 1 2
PF phosphorus monofluoride rFP 1.593   1.671 0.079 1 2
SF4 Sulfur tetrafluoride rSF 1.646 ±0.003 1.725 0.079 1 2
KBr Potassium Bromide rKBr 2.821 ±0.000 2.901 0.080 1 2
MgCl magnesium monochloride rMgCl 2.199   2.279 0.080 1 2
PF2 Phosphorus difluoride rPF 1.579   1.661 0.082 1 2
NO- nitric oxide anion rN=O 1.258 ±0.010 1.340 0.082 1 2
CH2ClCH2Cl Ethane, 1,2-dichloro- rCCl 1.790   1.874 0.084 1 3
AlBr Aluminum monobromide rAlBr 2.295   2.381 0.086 1 2
TeO Tellurium monoxide rO=Te 1.825   1.912 0.087 1 2
O2+ diatomic oxygen cation rOO 1.116   1.206 0.090 1 2
C2H6O2S Dimethyl sulfone rCS 1.777 ±0.006 1.868 0.091 1 4
SiS silicon monosulfide rSiS 1.929 ±0.000 2.021 0.091 1 2
SiI4 silicon tetraiodide rSiI 2.432 ±0.005 2.524 0.092 1 2
SOF4 Sulfur tetrafluoride oxide rFS 1.596 ±0.003 1.688 0.092 1 3
BrO Bromine monoxide rOBr 1.718   1.810 0.093 1 2
OPCl Phosphorus oxychloride rP=O 1.462 ±0.011 1.556 0.094 1 2
CCl2O Phosgene rCCl 1.737   1.831 0.094 2 3
O2 Oxygen diatomic rO=O 1.208   1.302 0.094 1 2
SF Monosulfur monofluoride rSF 1.599   1.696 0.096 1 2
CH3ONO Methyl nitrite rNO 1.398   1.494 0.096 2 6
CH3NO3 Methyl nitrate rNO 1.402   1.499 0.097 1 4
OH- hydroxide anion rOH 0.964   1.061 0.097 1 2
AlI Aluminum monoiodide rAlI 2.537 ±0.000 2.639 0.102 1 2
PO Phosphorus monoxide rP=O 1.476   1.580 0.104 1 2
SiHCl3 Trichlorosilane rSiCl 2.020   2.128 0.108 1 3
NS Mononitrogen monosulfide rNS 1.497 ±0.000 1.606 0.109 1 2
PF+ phosphorus monofluoride cation rFP 1.500   1.610 0.110 1 2
BrF3 Bromine trifluoride rFBr 1.721   1.832 0.111 1 2
CaF Calcium monofluoride rFCa 1.967 ±0.001 2.079 0.112 1 2
ClF Chlorine monofluoride rFCl 1.628 ±0.000 1.741 0.113 1 2
SiH2Cl2 dichlorosilane rSiCl 2.033 ±0.003 2.146 0.113 1 4
PO2 Phosphorus dioxide rP=O 1.467   1.581 0.114 1 2
SiH3Cl chlorosilane rSiCl 2.051   2.166 0.116 1 2
AlCl Aluminum monochloride rAlCl 2.130 ±0.000 2.246 0.116 1 2
HOCl hypochlorous acid rClO 1.697 ±0.001 1.817 0.119 1 3
P2+ phosphorus diatomic cation rPP 1.986   2.106 0.120 1 2
C4H5N Cyclopropanecarbonitrile rCC 1.513   1.634 0.121 9 10
As4 Arsenic tetramer rAsAs 2.435   2.559 0.124 1 2
IO Iodine monoxide rIO 1.868 ±0.004 1.992 0.125 1 2
PO- phosphorus monoxide anion rOP 1.540   1.665 0.125 1 2
PS phosphorus sulfide rP=S 1.900   2.027 0.127 1 2
XeF4 Xenon tetrafluoride rFXe 1.935 ±0.000 2.062 0.127 1 2
F2SO Thionyl Fluoride rFS 1.585 ±0.000 1.713 0.127 1 3
SO+ sulfur monoxide cation rO=S 1.424   1.552 0.128 1 2
Se2 Selenium diatomic rSe=Se 2.166 ±0.001 2.294 0.128 1 2
SOCl2 thionyl chloride rS=O 1.443 ±0.006 1.572 0.129 1 2
SOF4 Sulfur tetrafluoride oxide rFS 1.539 ±0.003 1.669 0.130 1 5
SiBr+ Silicon monobromide cation rSiBr 2.095 ±0.000 2.227 0.131 1 2
SF4 Sulfur tetrafluoride rSF 1.545 ±0.003 1.678 0.133 1 4
CH2FCl fluorochloromethane rCCl 1.762 ±0.000 1.897 0.134 1 3
CH3COCl Acetyl Chloride rCCl 1.798   1.937 0.139 1 4
ClO Monochlorine monoxide rClO 1.596 ±0.001 1.735 0.139 1 2
F2SO Thionyl Fluoride rO=S 1.413 ±0.000 1.552 0.139 1 2
SiCl Clorosilylidyne rSiCl 2.061 ±0.000 2.201 0.140 1 2
SO Sulfur monoxide rS=O 1.481   1.624 0.143 1 2
SeS Selenium monosulfide rS=Se 2.037 ±0.001 2.181 0.145 1 2
HSiCl Chlorosilylene rSiCl 2.067 ±0.003 2.212 0.145 1 2
ClOF3 Chlorine trifluoride oxide rFCl 1.713 ±0.003 1.859 0.146 1 4
SSO Disulfur monoxide rS=O 1.456   1.602 0.146 1 2
SeCl2 Selenium Dichloride rClSe 2.157 ±0.003 2.304 0.147 1 2
C2H6O2S Dimethyl sulfone rS=O 1.431 ±0.004 1.580 0.149 1 2
XeF2 Xenon difluoride rFXe 1.974 ±0.000 2.123 0.149 1 2
HCCl Chloromethylene rCCl 1.696 ±0.003 1.847 0.151 1 2
CCl2 dichloromethylene rCCl 1.711   1.865 0.154 1 2
CHF2Cl difluorochloromethane rCCl 1.747 ±0.010 1.903 0.156 1 3
CCl carbon monochloride rCCl 1.649   1.806 0.157 1 2
Br2 Bromine diatomic rBrBr 2.281   2.439 0.158 1 2
S2+ sulfur diatomic cation rS=S 1.825 ±0.010 1.987 0.162 1 2
CaC Calcium monocarbide rC#Ca 2.302   2.464 0.163 1 2
PCl5 Phosphorus pentachloride rPCl 2.124   2.287 0.163 1 5
He2+ helium diatomic cation rHeHe 1.081 ±0.001 1.254 0.173 1 2
CaH Calcium monohydride rCaH 2.003 ±0.000 2.177 0.174 1 2
NCl nitrogen monochloride rNCl 1.611 ±0.000 1.785 0.175 1 2
PCl5 Phosphorus pentachloride rPCl 2.020   2.198 0.178 1 2
PCl phosphorus chloride rPCl 2.018   2.198 0.180 1 2
S2 Sulfur diatomic rS=S 1.889   2.072 0.183 1 2
BrCl Bromine monochloride rClBr 2.136 ±0.000 2.320 0.184 1 2
HSSSH trisulfane rSS 2.054 ±0.000 2.251 0.197 1 2
CaCl calcium monochloride rClCa 2.437   2.643 0.206 1 2
HClO4 perchloric acid rO=Cl 1.414 ±0.001 1.623 0.209 1 2
SCl sulfur monochloride rSCl 1.975   2.186 0.211 1 2
SCl2 Sulfur dichloride rSCl 2.013 ±0.001 2.225 0.212 1 2
CaBr Calcium monobromide rCaBr 2.594 ±0.000 2.810 0.217 1 2
Cl2 Chlorine diatomic rClCl 1.988   2.206 0.218 1 2
CFCl chlorofluoromethylene rCCl 1.714   1.933 0.219 1 3
ClFO3 Perchloryl fluoride rCl=O 1.400   1.621 0.221 2 3
ClOF3 Chlorine trifluoride oxide rFCl 1.603 ±0.004 1.828 0.225 1 3
HClO4 perchloric acid rO=Cl 1.404 ±0.001 1.631 0.227 1 4
ClFO3 Perchloryl fluoride rFCl 1.598   1.826 0.228 1 2
OPCl Phosphorus oxychloride rPCl 2.059 ±0.004 2.289 0.231 1 3
SSO Disulfur monoxide rS=S 1.884   2.122 0.238 2 3
HClO4 perchloric acid rOCl 1.641 ±0.002 1.893 0.252 1 3
Cl2+ chlorine diatomic cation rClCl 1.892   2.150 0.259 1 2
CaO Calcium monoxide rOCa 1.822   2.086 0.264 1 2
CuCl Copper monochloride rCuCl 2.051 ±0.000 2.327 0.275 1 2
Al2Cl6 Aluminum, di-μ-chlorotetrachlorodi- rAlCl 2.040 ±0.040 2.344 0.304 1 3
CuH Copper monohydride rCuH 1.463   1.774 0.311 1 2
C4H10O Methyl propyl ether rCH 1.099   1.431 0.332 1 2
587 molecules.