National Institute of Standards and Technology
Computational Chemistry Comparison and Benchmark DataBase
Release 17bSeptember 2015
NIST Standard Reference Database 101
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IV.D.8.

Average Bond Length Differences by Model Chemistry

Calculated at B3PW91/6-31G(2df,p)

Species Name Bond type Bond Length (Å)
Experimental unc. Calculated Difference atom1 atom2
Cu2 Copper dimer rCuCu 2.220   2.014 -0.205 1 2
CuO Copper Monoxide rCuO 1.724 ±0.000 1.629 -0.095 1 2
CuCl Copper monochloride rCuCl 2.051 ±0.000 1.959 -0.093 1 2
Si2 Silicon diatomic rSiSi 2.246   2.154 -0.092 1 2
CuF Copper monofluoride rCuF 1.745 ±0.000 1.658 -0.087 1 2
LiO lithium oxide rLiO 1.688   1.608 -0.080 1 2
As4 Arsenic tetramer rAsAs 2.435   2.372 -0.063 1 2
GaAs Gallium arsenide rGa#As 2.530 ±0.020 2.475 -0.055 1 2
C5H10 2-Pentene, (E)- rCC 1.576   1.524 -0.052 11 15
CuH Copper monohydride rHCu 1.463   1.414 -0.049 1 2
C5H6 Bicyclo[2.1.0]pent-2-ene rCC 1.560   1.514 -0.046 3 5
KF Potassium Fluoride rKF 2.171 ±0.000 2.128 -0.044 1 2
C2Cl2 dichloroacetylene rC#C 1.246 ±0.030 1.203 -0.043 1 2
C6H5OCH3 Anisole rCO 1.399   1.356 -0.043 1 7
As2 Arsenic diatomic rAs#As 2.103   2.063 -0.040 1 2
C4H5N Cyclopropanecarbonitrile rCC 1.472   1.434 -0.038 6 8
C5H8 Bicyclo[2.1.0]pentane rCC 1.536   1.499 -0.037 1 5
CH2O2 Dioxirane rOO 1.516 ±0.003 1.479 -0.037 4 5
Se2 Selenium diatomic rSe=Se 2.166 ±0.001 2.130 -0.036 1 2
ScH Scandium monohydride rHSc 1.775 ±0.000 1.741 -0.034 1 2
F2 Fluorine diatomic rFF 1.412   1.379 -0.033 1 2
C2H3N3 1H-1,2,4-Triazole rCN 1.377   1.345 -0.032 5 7
NaF sodium fluoride rNaF 1.926 ±0.000 1.895 -0.031 1 2
C5H10 2-Pentene, (Z)- rCC 1.561   1.533 -0.028 1 5
HOBr Hypobromous acid rBrO 1.834   1.808 -0.026 2 3
CBr4 Carbon tetrabromide rCBr 1.942 ±0.002 1.917 -0.025 1 2
C6H5OCH3 Anisole rCO 1.433   1.408 -0.025 7 8
CH2FCl fluorochloromethane rCF 1.370 ±0.001 1.345 -0.025 1 2
TiCl Titanium Monochloride rClTi 2.265 ±0.000 2.241 -0.023 1 2
C5H5N Bicyclo[1.1.0]butane-1-carbonitrile rCC 1.514   1.491 -0.023 3 9
FO Oxygen monofluoride rFO 1.354   1.331 -0.023 1 2
C4H5NO 3-Methylisoxazole rCC 1.514   1.491 -0.023 1 8
CH2ClCH2Cl Ethane, 1,2-dichloro- rCH 1.112   1.090 -0.022 1 5
C2H5F fluoroethane rCF 1.398 ±0.007 1.376 -0.022 1 3
CHF2Cl difluorochloromethane rCF 1.350 ±0.010 1.328 -0.022 1 4
C7H16 heptane rCH 1.121 ±0.007 1.099 -0.022 1 8
C2H2O2 Ethanedial rCH 1.132   1.111 -0.021 1 3
C4H5NO Isoxazole, 5-methyl- rCC 1.505   1.484 -0.021 1 5
C9H8 Indene rCC 1.415 ±0.170 1.394 -0.021 1 2
CFCl3 Trichloromonofluoromethane rCF 1.345   1.324 -0.021 1 2
LiCl- lithium chloride anion rLiCl 2.180   2.159 -0.021 1 2
C3H8O2 Methane, dimethoxy- rCO 1.432   1.412 -0.020 4 6
N2O3 Dinitrogen trioxide rN=O 1.217   1.197 -0.020 2 5
C3H8O2 1,3-Propanediol rOH 0.980   0.960 -0.020 6 8
LiOH lithium hydroxide rOH 0.969   0.949 -0.020 1 3
C4H5N Cyclopropanecarbonitrile rCC 1.513   1.493 -0.020 9 10
F2O Difluorine monoxide rFO 1.405   1.385 -0.020 1 2
Si(CH3)4 tetramethylsilane rCH 1.115 ±7.000 1.095 -0.020 2 6
C5H9N Pentanenitrile rCC 1.478   1.459 -0.019 4 6
C5H6 1-Buten-3-yne, 2-methyl- rCC 1.445   1.426 -0.019 7 8
CH3CH2CH2CH3 Butane rCH 1.117   1.098 -0.019 1 5
BrF5 bromine pentafluoride rFBr 1.774 ±0.003 1.756 -0.018 1 3
C4H4N2 Succinonitrile rCC 1.561   1.543 -0.018 1 2
C6H12 (E)-3-methylpent-2-ene rCC 1.551   1.533 -0.018 9 12
C6H8 (Z)-hexa-1,3,5-triene rC=C 1.368   1.350 -0.018 1 2
CH3ONO Methyl nitrite rNO 1.398   1.381 -0.017 2 6
OCSe Carbonyl selenide rC=Se 1.709   1.692 -0.017 1 3
C4H4N2 1,3-Diazine rC:N 1.350   1.333 -0.017 3 5
BrF3 Bromine trifluoride rFBr 1.810 ±0.000 1.793 -0.017 1 3
HO2 Hydroperoxy radical rOO 1.331   1.314 -0.017 1 2
CH2ClCH2Cl Ethane, 1,2-dichloro- rCC 1.531   1.515 -0.016 1 2
CH3OCl methyl hypochlorite rHC 1.111 ±0.018 1.095 -0.016 3 4
ClO Monochlorine monoxide rClO 1.596 ±0.001 1.580 -0.016 1 2
BrF Bromine monofluoride rFBr 1.759 ±0.000 1.743 -0.016 1 2
CSe2 Carbon diselenide rC=Se 1.692 ±0.000 1.676 -0.016 1 2
SeS Selenium monosulfide rS=Se 2.037 ±0.001 2.021 -0.016 1 2
BrO Bromine monoxide rOBr 1.718   1.702 -0.015 1 2
MgO magnesium oxide rMgO 1.749   1.734 -0.015 1 2
CH3NC methyl isocyanide rCN 1.426 ±0.003 1.411 -0.015 1 2
C5H12O Butane, 1-methoxy- rCO 1.415   1.400 -0.015 3 4
CH3Br methyl bromide rCBr 1.934 ±0.000 1.919 -0.015 1 2
C6H8 (Z)-hexa-1,3,5-triene rCH 1.104   1.089 -0.015 1 7
AsF Arsenic monofluoride rFAs 1.736 ±0.001 1.721 -0.015 1 2
CH2Br2 dibromomethane rCBr 1.925 ±0.002 1.910 -0.015 1 4
C4H6 Bicyclo[1.1.0]butane rCC 1.497   1.483 -0.014 1 2
CHBr3 bromoform rCBr 1.924 ±0.005 1.910 -0.014 1 3
CH3COCl Acetyl Chloride rCH 1.105   1.091 -0.014 2 5
C5H5N Bicyclo[1.1.0]butane-1-carbonitrile rCC 1.518   1.504 -0.014 3 7
N(CH3)3 Trimethylamine rCH 1.109   1.095 -0.014 2 8
C5H6 Bicyclo[2.1.0]pent-2-ene rCC 1.530   1.517 -0.013 1 3
HNO3 Nitric acid rNO 1.406   1.393 -0.013 1 2
NF nitrogen fluoride rNF 1.317   1.304 -0.013 1 2
C4H10O Methyl propyl ether rCO 1.413   1.400 -0.013 1 9
C3H5ClO Oxirane, (chloromethyl)- rCC 1.475   1.462 -0.013 3 4
CH3NH2 methyl amine rCN 1.471 ±0.003 1.458 -0.013 1 2
CH2CHCHO Acrolein rC=O 1.219 ±0.005 1.207 -0.012 1 4
CH2NN diazomethane rC=N 1.300   1.288 -0.012 1 2
C2H Ethynyl radical rC#C 1.217   1.205 -0.012 1 2
C5H8 Cyclopentene rCC 1.518   1.506 -0.012 2 4
CH2CHCHO Acrolein rC=C 1.345 ±0.003 1.333 -0.012 2 3
CH2CCHCH3 1,2-Butadiene rC=C 1.314   1.302 -0.012 1 2
C2H3N3 1H-1,2,4-Triazole rC=N 1.329   1.318 -0.011 1 7
C3H4O Cyclopropanone rCC 1.575   1.564 -0.011 3 4
Br2 Bromine diatomic rBrBr 2.281   2.270 -0.011 1 2
CH3OCH3 Dimethyl ether rCO 1.411 ±0.001 1.400 -0.011 1 2
C5H5N Pyridine rC:C 1.400   1.389 -0.011 2 5
C3H6O Propylene oxide rCC 1.513   1.503 -0.010 2 6
CH2Cl chloromethyl radical rHC 1.090 ±0.010 1.080 -0.010 1 3
CH3CH2CHO Propanal rCH 1.103   1.093 -0.010 1 6
P2+ phosphorus dimer cation rPP 1.986   1.976 -0.010 1 2
CH3SeH Methane selenol rHSe 1.473 ±0.020 1.463 -0.010 1 3
C4H5N (E)-2-Butenenitrile rCC 1.432   1.422 -0.010 8 10
C3H4N2 1H-Imidazole rCN 1.382   1.373 -0.010 1 5
CH2CHCH2CH2Cl 1-Butene, 4-chloro- rCC 1.508   1.499 -0.009 2 6
CH3COCl Acetyl Chloride rCC 1.506   1.497 -0.009 1 2
C5H8 1,3-Butadiene, 2-methyl- rCC 1.512   1.503 -0.009 2 5
NS+ nitrogen sulfide cation rNS 1.440   1.431 -0.009 1 2
O2+ diatomic oxygen cation rOO 1.116   1.107 -0.009 1 2
GeF Germanium monofluoride rF-Ge 1.745   1.736 -0.009 1 2
B2H6 Diborane rBH 1.200   1.191 -0.009 1 5
SeO2 Selenium dioxide rSeO 1.607 ±0.001 1.598 -0.009 1 2
HClO4 perchloric acid rHO 0.980   0.971 -0.009 3 6
SiN Silicon nitride rSiN 1.575   1.567 -0.009 1 2
CH3ONO Methyl nitrite rCO 1.437   1.429 -0.008 1 2
C2HF3 Trifluoroethylene rCF 1.316 ±0.011 1.308 -0.008 1 3
CH3ONO Methyl nitrite rCH 1.102   1.094 -0.008 1 4
SeO Selenium monoxide rSeO 1.639 ±0.001 1.631 -0.008 1 2
O2 Oxygen diatomic rO=O 1.208   1.200 -0.007 1 2
AsH Arsenic monohydride rHAs 1.535 ±0.001 1.527 -0.007 1 2
C8H8 cubane rCH 1.097   1.090 -0.007 1 9
C4H4N2 Succinonitrile rCC 1.465   1.458 -0.007 1 3
CH2O2 Dioxirane rCO 1.388 ±0.004 1.381 -0.007 1 4
CH3OCHO methyl formate rCO 1.437   1.430 -0.007 1 2
CH2CHCl Ethene, chloro- rCH 1.090   1.083 -0.007 1 4
C7H16 heptane rCC 1.534   1.527 -0.007 1 2
BH+ boron monohydride cation rHB 1.215   1.208 -0.006 1 2
C5H8 Cyclobutane, methylene- rCC 1.524   1.518 -0.006 1 3
BeO beryllium oxide rBe=O 1.331   1.325 -0.006 1 2
CH2C(CH3)OCH3 1-Propene, 2-methoxy- rCO 1.416   1.410 -0.006 1 5
CH3COCl Acetyl Chloride rC=O 1.187   1.181 -0.006 1 3
C6H5OH phenol rCO 1.364   1.358 -0.006 1 7
CP Carbon monophosphide rC#P 1.562   1.557 -0.006 1 2
HF+ hydrogen fluoride cation rHF 1.014   1.009 -0.006 1 2
CF Fluoromethylidyne rCF 1.276   1.271 -0.005 1 2
NO Nitric oxide rN=O 1.154 ±0.000 1.148 -0.005 1 2
C2- carbon diatomic anion rC#C 1.268 ±0.000 1.263 -0.005 1 2
LiBr Lithium Bromide rLiBr 2.170 ±0.000 2.165 -0.005 1 2
C4H10O Ethoxy ethane rCO 1.411   1.406 -0.005 1 2
PN Phosphorus mononitride rP#N 1.491   1.486 -0.005 1 2
N2O3 Dinitrogen trioxide rN=O 1.202   1.197 -0.005 2 4
CH2NH Methanimine rCH 1.103   1.098 -0.005 1 3
CH2C(CH3)OCH3 1-Propene, 2-methoxy- rCH 1.087   1.082 -0.005 11 12
C6H8 1,3-Cyclohexadiene rCH 1.100   1.095 -0.005 5 11
NaBr Sodium Bromide rNaBr 2.502 ±0.000 2.497 -0.005 1 2
OCSe Carbonyl selenide rC=O 1.159   1.154 -0.005 1 2
CH3CH2CHO Propanal rCH 1.105   1.100 -0.005 2 8
C3H4N2 1H-Imidazole rCN 1.364   1.360 -0.005 8 9
ArH+ Argon hydride cation rHAr 1.292 ±0.000 1.287 -0.005 1 2
C5H8 Bicyclo[2.1.0]pentane rCC 1.565   1.560 -0.005 3 4
C6H8 1,3-Cyclohexadiene rCC 1.466   1.461 -0.005 2 3
C3H4N2 1H-Imidazole rCN 1.377   1.373 -0.005 3 9
H2CS Thioformaldehyde rC=S 1.611   1.606 -0.004 1 2
N3 azide radical rNN 1.181   1.177 -0.004 1 2
HBr hydrogen bromide rHBr 1.414 ±0.000 1.410 -0.004 1 2
CH2PH H2CPH rCH 1.090 ±0.015 1.086 -0.004 1 3
HBr+ hydrogen bromide cation rHBr 1.448   1.444 -0.004 1 2
CH3CH2OH Ethanol rCH 1.098   1.094 -0.004 1 6
SH+ sulfur monohydride cation rHS 1.374   1.370 -0.004 1 2
BrCl Bromine monochloride rClBr 2.136 ±0.000 2.132 -0.004 1 2
C4H10O Methyl propyl ether rCC 1.530   1.526 -0.004 5 13
SiH2Cl2 dichlorosilane rSiH 1.480 ±0.015 1.476 -0.004 1 2
CH2 Methylene rCH 1.085   1.081 -0.004 1 2
CH3NH2 methyl amine rNH 1.018 ±0.001 1.014 -0.004 2 6
CH2CHCH2CH3 1-Butene rCC 1.536   1.532 -0.004 1 2
NO+ nitric oxide cation rN=O 1.066   1.062 -0.004 1 2
C4H6 Cyclobutene rCC 1.517   1.513 -0.004 1 3
BF Boron monofluoride rBF 1.267 ±0.000 1.263 -0.003 1 2
C6H5OH phenol rC:C 1.398   1.395 -0.003 1 2
C3H7SH 1-Propanethiol rCC 1.529   1.526 -0.003 7 10
N2O3 Dinitrogen trioxide rN=O 1.142   1.139 -0.003 1 3
C6H8 1,3-Cyclohexadiene rCH 1.090   1.087 -0.003 1 7
CN Cyano radical rC#N 1.172   1.169 -0.003 1 2
CH3CH(CH3)CH3 Isobutane rCH 1.100   1.097 -0.003 3 6
P2 Phosphorus diatomic rP#P 1.893   1.890 -0.003 1 2
BrF3 Bromine trifluoride rFBr 1.721   1.718 -0.003 1 2
C4H4N2 1,3-Diazine rCH 1.087   1.084 -0.003 1 7
BN boron nitride rB=N 1.325   1.322 -0.003 1 2
CH3CH2CHO Propanal rCH 1.096   1.093 -0.003 1 5
C2H2 Acetylene rC#C 1.203   1.200 -0.003 1 2
C3H4N2 1H-Pyrazole rCH 1.082   1.079 -0.003 1 2
CH3CH2CH2CH3 Butane rCC 1.531   1.528 -0.003 1 2
C4H10O Methyl propyl ether rCH 1.107   1.104 -0.003 10 11
CH3NO3 Methyl nitrate rCH 1.095   1.092 -0.003 5 8
CH3CH2CHO Propanal rCC 1.509   1.507 -0.002 2 3
CH2PH H2CPH rCH 1.090 ±0.015 1.088 -0.002 1 4
B2H6 Diborane rBH 1.320   1.318 -0.002 1 3
CH3CH2CHO Propanal rCC 1.523   1.521 -0.002 1 2
C4H6O Cyclobutanone rCC 1.556   1.554 -0.002 3 5
C2H2O2 Ethanedial rCC 1.526   1.524 -0.002 1 2
C3H4N2 1H-Pyrazole rCH 1.083   1.081 -0.002 5 6
GeH germylidene rHGe 1.588   1.586 -0.002 1 2
S2+ sulfur dimer cation rS=S 1.825 ±0.010 1.823 -0.002 1 2
SOCl2 thionyl chloride rS=O 1.443 ±0.006 1.441 -0.002 1 2
HNCNH diiminomethane rC=N 1.224 ±0.001 1.222 -0.002 1 2
CH2C(CH3)CH3 1-Propene, 2-methyl- rCH 1.088   1.086 -0.002 2 3
C6H12 Cyclohexane rCH 1.101   1.100 -0.002 1 7
MgS magnesium sulfide rMgS 2.143   2.141 -0.002 1 2
CH3NO3 Methyl nitrate rNO 1.402   1.400 -0.002 1 4
C4H10O Ethoxy ethane rCC 1.517   1.515 -0.002 2 4
CO+ carbon monoxide cation rC=O 1.115 ±0.000 1.114 -0.002 1 2
C5H10 Cyclopropane, 1,1-dimethyl- rCC 1.514   1.512 -0.002 1 4
C3H4N2 1H-Pyrazole rCH 1.080   1.078 -0.002 3 4
CHClCCl2 Trichloroethylene rCCl 1.712   1.710 -0.002 2 6
CH3SCH2CH3 Ethane, (methylthio)- rCH 1.097   1.095 -0.002 5 6
CH2NN diazomethane rN=N 1.139   1.137 -0.002 2 3
CH2CO Ketene rCH 1.083   1.081 -0.001 1 4
CCl2O Phosgene rC=O 1.177   1.175 -0.001 1 2
ClCN chlorocyanogen rCCl 1.629   1.628 -0.001 1 2
CH3NHCH3 Dimethylamine rCH 1.098   1.097 -0.001 3 7
CH3CH(NH2)COOH Alanine rCC 1.544   1.543 -0.001 3 4
C4H10O Propane, 2-methoxy- rCO 1.422   1.421 -0.001 5 14
ClCN chlorocyanogen rC#N 1.161   1.159 -0.001 2 3
GeCl Germanium monochloride rCl-Ge 2.164 ±0.000 2.163 -0.001 1 2
CH2CHCHO Acrolein rCH 1.086 ±0.007 1.085 -0.001 3 7
CH3CCH propyne rCH 1.096   1.095 -0.001 1 5
C4H10O Methyl propyl ether rCO 1.408   1.407 -0.001 9 10
BO boron monoxide rB=O 1.205   1.204 -0.001 1 2
CH3NC methyl isocyanide rCH 1.094   1.093 -0.001 1 4
CH3ONO Methyl nitrite rCH 1.090   1.089 -0.001 1 3
DF Hydrofluoric acid-d rDF 0.917 ±0.000 0.917 -0.001 1 2
C3H4N2 1H-Imidazole rCH 1.079   1.078 -0.001 3 4
C5H8 1,3-Butadiene, 2-methyl- rCC 1.463   1.463 -0.000 2 3
PF5 Phosphorus pentafluoride rFP 1.577   1.577 -0.000 1 5
CF3COOH trifluoroacetic acid rCC 1.546 ±0.005 1.546 -0.000 1 2
CSe Carbon monoselenide rC=Se 1.676 ±0.000 1.676 -0.000 1 2
CH3ONO Methyl nitrite rN=O 1.182   1.182 -0.000 6 7
SiP Silicon monophosphide rSiP 2.078 ±0.002 2.078 0.000 1 2
C4H10O Methyl propyl ether rCH 1.093   1.093 0.000 5 6
HF Hydrogen fluoride rHF 0.917 ±0.000 0.917 0.000 1 2
CH2CO Ketene rC=O 1.162   1.162 0.000 2 3
CH3CHS Thioacetaldehyde rCH 1.098   1.098 0.000 2 6
AlN Aluminum nitride rN#Al 1.786   1.787 0.000 1 2
CH3OCHO methyl formate rCH 1.101   1.102 0.001 3 8
N2 Nitrogen diatomic rN#N 1.098   1.098 0.001 1 2
CH3CH2CHO Propanal rCH 1.115   1.116 0.001 3 10
SO+ sulfur monoxide cation rO=S 1.424   1.425 0.001 1 2
C2H2 Acetylene rCH 1.063   1.064 0.001 1 3
CN- cyanide anion rC#N 1.177 ±0.004 1.178 0.001 1 2
CH3CHS Thioacetaldehyde rCH 1.090   1.091 0.001 2 5
C5H8 Bicyclo[2.1.0]pentane rCC 1.528   1.529 0.001 1 3
PH+ phosphorus monohydride cation rHP 1.435   1.436 0.001 1 2
BF3 Borane, trifluoro- rBF 1.307   1.308 0.001 1 2
C4H6S Thiophene, 2,5-dihydro- rCH 1.095   1.096 0.001 2 6
C4H8 cyclobutane rCH 1.093   1.095 0.001 1 5
C5H5N Pyridine rC:C 1.390   1.391 0.001 3 5
CH3OCHO methyl formate rCO 1.334   1.335 0.001 2 3
HClO4 perchloric acid rO=Cl 1.414 ±0.001 1.415 0.001 1 2
C3H8 Propane rCH 1.096   1.097 0.001 1 4
C3H6 Cyclopropane rCC 1.501   1.502 0.001 1 2
CH3CHO Acetaldehyde rCH 1.114   1.116 0.002 1 4
D2 Deuterium diatomic rDD 0.742   0.743 0.002 1 2
C4H6 Cyclobutene rCH 1.094   1.096 0.002 3 7
C6H8 (Z)-hexa-1,3,5-triene rC=C 1.337   1.339 0.002 3 5
H2 Hydrogen diatomic rHH 0.741   0.743 0.002 1 2
HD Deuterium hydride rDH 0.741   0.743 0.002 1 2
GaF Gallium monofluoride rFGa 1.774 ±0.000 1.776 0.002 1 2
C3H4N2 1H-Imidazole rCH 1.079   1.081 0.002 7 8
C6H8 1,4-Cyclohexadiene rCH 1.100   1.102 0.002 1 11
SiO Silicon monoxide rSiO 1.510 ±0.000 1.512 0.002 1 2
C3H6 Cyclopropane rCH 1.083   1.085 0.002 1 4
CH2CHCHO Acrolein rCH 1.086 ±0.007 1.088 0.002 3 8
HOCl hypochlorous acid rClO 1.691   1.693 0.002 1 3
C10H8 naphthalene rC:C 1.410   1.412 0.002 2 3
CH3SCH2CH3 Ethane, (methylthio)- rCH 1.092   1.094 0.002 1 3
C4H10O Ethoxy ethane rCH 1.092   1.094 0.002 4 10
CH2FCl fluorochloromethane rCH 1.090 ±0.010 1.092 0.002 1 4
H2O Water rOH 0.958 ±0.000 0.960 0.002 1 2
H2Se Hydrogen selenide rHSe 1.460   1.462 0.002 1 2
C4H6 Cyclobutene rCH 1.083   1.085 0.002 1 5
C4H8 cyclobutane rCH 1.091   1.093 0.002 1 6
SF Monosulfur monofluoride rSF 1.599   1.602 0.002 1 2
CO Carbon monoxide rC#O 1.128 ±0.000 1.131 0.002 1 2
HCCCN Cyanoacetylene rCH 1.062 ±0.001 1.065 0.002 4 5
HNCO Isocyanic acid rC=O 1.164   1.166 0.002 3 4
CH2CHCHO Acrolein rCC 1.470 ±0.003 1.472 0.002 1 2
C4H10O Methyl propyl ether rCH 1.094   1.097 0.003 13 14
C3H4N2 1H-Imidazole rCH 1.078   1.080 0.003 5 6
C6H5OH phenol rCH 1.082   1.085 0.003 4 11
CH2CHCHO Acrolein rCH 1.084 ±0.005 1.087 0.003 2 6
PF phosphorus monofluoride rFP 1.593   1.595 0.003 1 2
BeF Beryllium monofluoride rBeF 1.361   1.364 0.003 1 2
HO2 Hydroperoxy radical rOH 0.971   0.974 0.003 1 3
CH2O2 Dioxirane rCH 1.090 ±0.002 1.093 0.003 1 2
CF3COOH trifluoroacetic acid rC=O 1.192 ±0.003 1.195 0.003 2 4
PS phosphorus sulfide rP=S 1.900   1.903 0.003 1 2
CHONH2 formamide rNH 1.001   1.004 0.003 3 6
C6H12 Cyclohexane rCH 1.093   1.096 0.003 1 13
CH3NO3 Methyl nitrate rCH 1.088   1.091 0.003 5 6
C4H10O Methyl propyl ether rCC 1.516   1.519 0.003 10 13
CH3CCH propyne rCH 1.060   1.063 0.003 3 4
C2H5F fluoroethane rCH 1.095 ±0.007 1.098 0.003 1 4
CH2ClCH2Cl Ethane, 1,2-dichloro- rCCl 1.790   1.793 0.003 1 3
C4H10O Methyl propyl ether rCH 1.091   1.094 0.003 5 8
CH3CH(CH3)CH3 Isobutane rCH 1.092   1.095 0.003 3 9
C2H5N Aziridine rCH 1.084   1.087 0.003 3 6
C4H10O Methyl propyl ether rCH 1.099   1.102 0.003 1 2
C5H10 2-Pentene, (Z)- rCH 1.092   1.095 0.003 1 2
MgF Magnesium monofluoride rMgF 1.750   1.754 0.004 1 2
BeS beryllium sulfide rBe=S 1.742   1.745 0.004 1 2
CH3SCH2CH3 Ethane, (methylthio)- rCH 1.090   1.094 0.004 9 11
C2H5N Aziridine rCH 1.083   1.087 0.004 3 5
C2H5F fluoroethane rCH 1.090 ±0.007 1.094 0.004 2 7
CH2NN diazomethane rHC 1.075   1.079 0.004 1 4
C2H5F fluoroethane rCH 1.091 ±0.007 1.095 0.004 2 6
CHClCCl2 Trichloroethylene rCCl 1.720   1.724 0.004 2 5
C4H10O Ethoxy ethane rCH 1.090   1.094 0.004 4 12
CH3OCH3 Dimethyl ether rCH 1.099 ±0.001 1.103 0.004 2 6
CH3OCHO methyl formate rCH 1.086   1.090 0.004 1 5
C6H5OH phenol rCH 1.084   1.088 0.004 2 9
DO Hydroxyl-d rDO 0.970   0.974 0.004 1 2
C4H4N2 1,3-Diazine rC:N 1.328   1.332 0.004 2 6
C3H7SH 1-Propanethiol rCH 1.090   1.094 0.004 8 10
CH3SCH2CH3 Ethane, (methylthio)- rCS 1.804   1.808 0.004 8 9
OH Hydroxyl radical rOH 0.970   0.974 0.004 1 2
AlO Aluminum monoxide rAlO 1.618   1.622 0.004 1 2
LiOH lithium hydroxide rLiO 1.582   1.586 0.004 1 2
P2H4 H2PPH2 rPH 1.417   1.421 0.004 1 3
LiF lithium fluoride rLiF 1.564 ±0.000 1.568 0.004 1 2
ClF Chlorine monofluoride rFCl 1.628 ±0.000 1.633 0.004 1 2
BH3 boron trihydride rBH 1.190   1.194 0.004 1 2
HOBr Hypobromous acid rOH 0.961   0.965 0.004 1 2
CS carbon monosulfide rC#S 1.535   1.539 0.004 1 2
C4H10O Ethoxy ethane rCH 1.100   1.105 0.005 2 6
CH3SCH2CH3 Ethane, (methylthio)- rCH 1.089   1.094 0.005 9 10
C3H7SH 1-Propanethiol rCH 1.092   1.097 0.005 5 7
C3H4 cyclopropene rCH 1.072   1.077 0.005 2 4
CH2CHF Ethene, fluoro- rCH 1.082   1.087 0.005 1 4
CH2CHCl Ethene, chloro- rCH 1.079   1.084 0.005 2 5
CH4 Methane rCH 1.087 ±0.001 1.092 0.005 1 2
SF4 Sulfur tetrafluoride rSF 1.646 ±0.003 1.651 0.005 1 2
PO2 Phosphorus dioxide rP=O 1.467   1.471 0.005 1 2
NaCl Sodium Chloride rNaCl 2.361 ±0.000 2.366 0.005 1 2
PO Phosphorus monoxide rP=O 1.476   1.481 0.005 1 2
NaH sodium hydride rNaH 1.887 ±0.000 1.892 0.005 1 2
C4H10O Propane, 2-methoxy- rCH 1.095   1.100 0.005 1 2
CH3CHO Acetaldehyde rCH 1.086   1.091 0.005 2 5
C3H3NO Oxazole rCO 1.357   1.363 0.005 1 5
CH3CH2Cl Ethyl chloride rCH 1.086   1.091 0.005 2 7
C5H7N Cyclobutanecarbonitrile rCC 1.551   1.556 0.005 3 6
C3H4 cyclopropene rCH 1.088   1.093 0.005 1 6
SSO Disulfur monoxide rS=O 1.456   1.462 0.005 1 2
SiH3F monofluorosilane rSiF 1.595   1.600 0.005 1 2
CH3CH2Cl Ethyl chloride rCH 1.090   1.096 0.006 1 3
C5H10 Cyclopropane, 1,1-dimethyl- rCH 1.080   1.086 0.006 2 6
CH2CHCH2CH3 1-Butene rCC 1.493   1.499 0.006 2 3
CHONH2 formamide rNH 1.001   1.007 0.006 3 5
CH3NC methyl isocyanide rC#N 1.166 ±0.003 1.172 0.006 2 3
AlF Aluminum monofluoride rAlF 1.654 ±0.000 1.660 0.006 1 2
DCl Hydrochloric acid-d rDCl 1.275 ±0.000 1.280 0.006 1 2
BS boron sulfide rBS 1.609   1.615 0.006 1 2
SiF silicon monofluoride rSiF 1.604   1.610 0.006 1 2
HCl Hydrogen chloride rHCl 1.275 ±0.000 1.280 0.006 1 2
SiH4 Silane rSiH 1.480 ±0.000 1.486 0.006 1 2
C5H8O 2H-Pyran, 3,4-dihydro- rCC 1.516   1.522 0.006 10 13
CH3CH2OH Ethanol rCH 1.088   1.094 0.006 1 5
KBr Potassium Bromide rKBr 2.821 ±0.000 2.827 0.006 1 2
C4H6 Methylenecyclopropane rCC 1.457   1.463 0.006 2 5
CH2CHF Ethene, fluoro- rCH 1.077   1.083 0.006 2 5
AlS Aluminum sulfide rAlS 2.029   2.035 0.006 1 2
SiH3Cl chlorosilane rSiH 1.475   1.481 0.006 1 3
CH3Br methyl bromide rCH 1.082 ±0.001 1.089 0.007 1 3
NH Imidogen rNH 1.036   1.043 0.007 1 2
C4H4N2 1,3-Diazine rCH 1.082   1.089 0.007 2 8
CH3CHS Thioacetaldehyde rCH 1.089   1.096 0.007 1 4
P2H4 H2PPH2 rPH 1.414   1.421 0.007 1 4
BeH2 beryllium dihydride rHBe 1.326 ±0.000 1.333 0.007 1 2
SiHCl3 Trichlorosilane rSiH 1.464   1.471 0.007 1 2
C5H10 2-Pentene, (Z)- rCC 1.490   1.497 0.007 8 14
BeH beryllium monohydride rBeH 1.343   1.350 0.007 1 2
SH Mercapto radical rSH 1.341   1.348 0.007 1 2
AlC Aluminum carbide rC=Al 1.955   1.962 0.007 1 2
CH2CHCHO Acrolein rCH 1.108 ±0.005 1.115 0.007 1 5
HCl+ hydrogen chloride cation rHCl 1.315   1.322 0.007 1 2
DS Mercapto-d rSD 1.341   1.348 0.007 1 2
CH3SCH2CH3 Ethane, (methylthio)- rCH 1.087   1.095 0.008 1 2
C4H6O Cyclobutanone rCC 1.527   1.535 0.008 2 3
SiH3F monofluorosilane rSiH 1.476   1.484 0.008 1 3
SiS silicon monosulfide rSiS 1.929 ±0.000 1.937 0.008 1 2
C2H5F fluoroethane rCC 1.505 ±0.007 1.513 0.008 1 2
NO- nitric oxide anion rN=O 1.258 ±0.010 1.266 0.008 1 2
AsH3 Arsine rHAs 1.511 ±0.000 1.519 0.008 1 2
C5H8 Spiropentane rCC 1.470   1.478 0.008 1 2
Cl2 Chlorine diatomic rClCl 1.988   1.996 0.008 1 2
CH3NHCH3 Dimethylamine rCH 1.098   1.106 0.008 3 5
CH3OCH3 Dimethyl ether rCH 1.085 ±0.001 1.093 0.008 2 4
HClO4 perchloric acid rOCl 1.641 ±0.002 1.649 0.008 1 3
NH+ imidogen cation rHN 1.070 ±0.001 1.079 0.009 1 2
PH phosphorus monohydride rPH 1.422   1.431 0.009 1 2
Cl2+ chlorine diatomic cation rClCl 1.892   1.900 0.009 1 2
OH- hydroxide anion rOH 0.964   0.973 0.009 1 2
CFCl3 Trichloromonofluoromethane rCCl 1.764   1.773 0.009 1 3
C2H3 vinyl rCH 1.085   1.094 0.009 2 4
SCl sulfur monochloride rSCl 1.975   1.985 0.009 1 2
Si(CH3)4 tetramethylsilane rSiC 1.875 ±0.002 1.885 0.010 1 2
C4H4N2 1,3-Diazine rCH 1.079   1.089 0.010 3 9
SiF4 Silicon tetrafluoride rSiF 1.554   1.564 0.010 1 2
F2SO Thionyl Fluoride rFS 1.585 ±0.000 1.595 0.010 1 3
C6H5OH phenol rCH 1.076   1.086 0.010 3 10
PCl phosphorus chloride rPCl 2.018   2.028 0.010 1 2
SO Sulfur monoxide rS=O 1.481   1.491 0.010 1 2
MgH+ magnesium monohydride cation rHMg 1.652   1.662 0.010 1 2
CH3OCl methyl hypochlorite rHC 1.086 ±0.018 1.096 0.010 3 5
NH2CONH2 Urea rNH 0.998   1.008 0.010 4 8
CH3NH2 methyl amine rCH 1.093 ±0.000 1.103 0.010 1 3
CH3NHCH3 Dimethylamine rCH 1.084   1.094 0.010 3 9
C2H6O2S Dimethyl sulfone rCS 1.777 ±0.006 1.788 0.011 1 4
C2 Carbon diatomic rC=C 1.243   1.253 0.011 1 2
S2 Sulfur diatomic rS=S 1.889   1.900 0.011 1 2
PO- phosphorus monoxide anion rOP 1.540   1.551 0.011 1 2
BrF5 bromine pentafluoride rFBr 1.689 ±0.008 1.700 0.011 1 2
SiF2 Silicon difluoride rFSi 1.590 ±0.000 1.601 0.011 1 2
CCl2O Phosgene rCCl 1.737   1.748 0.011 2 3
C2H3N3 1H-1,2,4-Triazole rCN 1.348   1.359 0.011 1 2
NS Mononitrogen monosulfide rNS 1.497 ±0.000 1.509 0.012 1 2
CH Methylidyne rCH 1.120   1.132 0.012 1 2
AlH+ aluminum monohydride cation rHAl 1.602   1.614 0.012 1 2
NCl nitrogen monochloride rNCl 1.611 ±0.000 1.623 0.012 1 2
SSO Disulfur monoxide rS=S 1.884   1.897 0.013 2 3
C2H6O2S Dimethyl sulfone rS=O 1.431 ±0.004 1.444 0.013 1 2
PF5 Phosphorus pentafluoride rPF 1.534   1.547 0.013 1 2
C3H7N Cyclopropylamine rCH 1.080   1.093 0.013 1 2
CH2C(CH3)OCH3 1-Propene, 2-methoxy- rCO 1.353   1.366 0.013 5 10
SiH Silylidyne rSiH 1.520   1.533 0.013 1 2
C3H8O2 Methane, dimethoxy- rCO 1.382   1.395 0.013 1 4
SiH3Cl chlorosilane rSiCl 2.051   2.064 0.013 1 2
PCl5 Phosphorus pentachloride rPCl 2.124   2.138 0.014 1 5
CH3SCH2CH3 Ethane, (methylthio)- rCS 1.804   1.818 0.014 5 8
ClFO3 Perchloryl fluoride rCl=O 1.400   1.414 0.014 2 3
BeCl beryllium chloride rBeCl 1.797   1.811 0.014 1 2
F2SO Thionyl Fluoride rO=S 1.413 ±0.000 1.428 0.015 1 2
MgH magnesium monohydride rMgH 1.730   1.745 0.015 1 2
C3O2 Carbon suboxide rC=O 1.146   1.161 0.015 2 4
CH3CH(NH2)COOH Alanine rCC 1.509   1.524 0.015 2 3
CCl carbon monochloride rCCl 1.649   1.665 0.016 1 2
PF+ phosphorus monofluoride cation rFP 1.500   1.516 0.016 1 2
CCl2 dichloromethylene rCCl 1.711   1.727 0.016 1 2
CH3COCl Acetyl Chloride rCCl 1.798   1.814 0.016 1 4
SiH+ silicon monohydride cation rHSi 1.504   1.521 0.016 1 2
C4H10O Methyl propyl ether rCH 1.086   1.103 0.017 1 4
C2H3N3 1H-1,2,4-Triazole rC=N 1.305   1.322 0.017 2 4
CH3CH2OH Ethanol rCH 1.086   1.103 0.017 2 8
SiCl Clorosilylidyne rSiCl 2.061 ±0.000 2.078 0.017 1 2
BH Boron monohydride rBH 1.232   1.249 0.017 1 2
C5H10 2-Pentene, (E)- rCC 1.484   1.501 0.017 4 11
AlH aluminum monohydride rAlH 1.648   1.665 0.017 1 2
MgCl magnesium monochloride rMgCl 2.199   2.217 0.018 1 2
KCl Potassium Chloride rKCl 2.667 ±0.000 2.685 0.018 1 2
SiH2Cl2 dichlorosilane rSiCl 2.033 ±0.003 2.051 0.018 1 4
C2H Ethynyl radical rCH 1.047   1.065 0.018 1 3
SF4 Sulfur tetrafluoride rSF 1.545 ±0.003 1.564 0.019 1 4
C5H8 Bicyclo[2.1.0]pentane rCC 1.507   1.526 0.019 1 2
BCl boron monochloride rBCl 1.719 ±0.000 1.738 0.019 1 2
PCl5 Phosphorus pentachloride rPCl 2.020   2.039 0.019 1 2
C2Cl2 dichloroacetylene rCCl 1.612 ±0.030 1.631 0.020 1 3
SiHCl3 Trichlorosilane rSiCl 2.020   2.040 0.020 1 3
LiCl lithium chloride rLiCl 2.021 ±0.000 2.041 0.020 1 2
HClO4 perchloric acid rO=Cl 1.404 ±0.001 1.424 0.020 1 4
N(CH3)3 Trimethylamine rCH 1.088   1.108 0.020 2 5
C3H5 Allyl radical rCH 1.069   1.090 0.021 1 2
C4H4N2 Pyridazine rCH 1.064   1.085 0.021 1 5
KH Potassium hydride rHK 2.243 ±0.001 2.264 0.021 1 2
CaOH Calcium monohydroxide rHO 0.930 ±0.007 0.951 0.021 2 3
AlCl Aluminum monochloride rAlCl 2.130 ±0.000 2.151 0.021 1 2
C3O2 Carbon suboxide rC=C 1.251   1.273 0.022 1 2
CaF Calcium monofluoride rFCa 1.967 ±0.001 1.990 0.023 1 2
CH2FCl fluorochloromethane rCCl 1.762 ±0.000 1.785 0.023 1 3
B2 Boron diatomic rBB 1.590   1.619 0.029 1 2
LiH Lithium Hydride rLiH 1.595 ±0.000 1.624 0.029 1 2
ClFO3 Perchloryl fluoride rFCl 1.598   1.629 0.031 1 2
C5H10 2-Pentene, (Z)- rCH 1.058   1.091 0.033 12 13
NaLi lithium sodium rLiNa 2.889   2.925 0.036 1 2
CHF2Cl difluorochloromethane rCCl 1.747 ±0.010 1.785 0.038 1 3
CaOH Calcium monohydroxide rOCa 1.976 ±0.004 2.018 0.042 1 2
He2+ helium dimer cation rHeHe 1.081 ±0.001 1.141 0.060 1 2
CaCl calcium monochloride rClCa 2.437   2.510 0.074 1 2
Li2 Lithium diatomic rLiLi 2.673   2.753 0.080 1 2
CaH Calcium monohydride rHCa 2.003 ±0.000 2.084 0.081 1 2
Al2Cl6 Aluminum, di-μ-chlorotetrachlorodi- rAlCl 2.040 ±0.040 2.277 0.237 1 3
C3H3NO Oxazole rCH 1.075   1.385 0.310 3 4
CH3OC2H5 Ethane, methoxy- rCH 1.087   1.400 0.313 1 2
480 molecules.