return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Home > Geometry > Experimental > Same bond/angle many molecules OR Comparisons > Geometry > Bonds, angles > Same bond/angle many molecules

Compare Bonds

18 10 26 16 45

M06-2X/3-21G* for rCH

Histogram of Bond length differences (in Å) vs number of species


Differences greater than 5.500 are in the 5.500 bin. Differences less than -0.500 are in the -0.500 bin.

histogram chart 400
histogram chart 350 histogram chart
histogram chart 300 histogram chart
histogram chart 250 histogram chart
histogram chart 200 histogram chart
histogram chart 150 histogram chart
histogram chart 100 histogram chart
histogram chart 50 histogram chart
histogram chart 0 histogram chart histogram chart histogram chart histogram chart histogram chart
-0.500 0.000 0.500 1.000 1.500 2.000 2.500 3.000 3.500 4.000 4.500 5.000 5.500
bond length difference calc. - exp. (Å)

  Species Name Difference (Å)
Most negative difference C3H8O2 1,3-Propanediol-0.046
Most positive difference C4H6 1-Methylcyclopropene3.118

Bond lengths
Click on entry for experimental details.

Species Name Experimental (Å) Difference (Å)
C3H8O2 1,3-Propanediol 1.140 -0.046
C6H6 Fulvene 1.130 -0.045
C3H5Cl3 Propane, 1,2,3-trichloro- 1.131 -0.040
C5H8O Methyl cyclopropyl ketone 1.126 -0.036
CH3CONH2 Acetamide 1.124 -0.035
C2H2O2 Ethanedial 1.132 -0.033
CHOCH(CH3)CH3 Propanal, 2-methyl- 1.127 -0.033
C2H3CCH 1-Buten-3-yne 1.090 -0.029
CH2SHCH2SH 1,2-Ethanedithiol 1.120 -0.027
C2H6N2O2 Dimethylnitroamine 1.121 -0.026
CHBr3 bromoform 1.110 -0.025
C2HF3 Trifluoroethylene 1.100 -0.025
C4H5N Cyclopropanecarbonitrile 1.107 -0.025
C4H6O2 2,3-Butanedione 1.114 -0.024
C6H14 Hexane 1.118 -0.024
CH2ClCHClCH3 Propane, 1,2-dichloro- 1.113 -0.024
HCONHCH3 N-methylformamide 1.114 -0.023
CH2ClCH2Cl Ethane, 1,2-dichloro- 1.112 -0.023
C5H6 Propellane 1.106 -0.023
CH2ClCH2CH3 Propane, 1-chloro- 1.113 -0.023
C7H16 heptane 1.121 -0.023
C2H3CCH 1-Buten-3-yne 1.106 -0.023
C5H8 Spiropentane 1.105 -0.022
C5H12O Butane, 1-methoxy- 1.115 -0.021
CH3CCCH3 2-Butyne 1.116 -0.021
C5H10 Cyclopentane 1.114 -0.021
CHClCHCl Ethene, 1,2-dichloro-, (Z)- 1.101 -0.020
C3H7NO dimethylformamide 1.112 -0.020
CH3CH2CH2CH3 Butane 1.117 -0.020
C5H12 Pentane 1.118 -0.019
CH3OCl methyl hypochlorite 1.111 -0.019
C6H12 (E)-3-methylpent-2-ene 1.116 -0.019
CH2ClCH2CH2CH3 Butane, 1-chloro- 1.110 -0.019
C5H10S 2H-Thiopyran, tetrahydro- 1.114 -0.019
C7H12 Norbornane 1.113 -0.018
C4H10O2 Ethane, 1,2-dimethoxy- 1.109 -0.018
C3H6S3 1,3,5-Trithiane 1.114 -0.018
CH2CHCH2CH2Cl 1-Butene, 4-chloro- 1.102 -0.018
Si(CH3)4 tetramethylsilane 1.115 -0.018
C5H12 Propane, 2,2-dimethyl- 1.114 -0.018
C5H8 1,3-Butadiene, 2-methyl- 1.110 -0.018
C5H10O 2H-Pyran, tetrahydro- 1.116 -0.017
C6H8 (Z)-hexa-1,3,5-triene 1.104 -0.017
C4H8O2 Ethyl acetate 1.105 -0.017
C5H10O 2-Butanone, 3-methyl- 1.113 -0.016
CH3CHClCH2CH3 Butane, 2-chloro- 1.110 -0.016
CH2CClCHCH2 1,3-Butadiene, 2-chloro- 1.098 -0.016
C5H8 Ethenylcyclopropane 1.099 -0.015
CH2CHOH ethenol 1.097 -0.015
N(CH3)3 Trimethylamine 1.109 -0.015
C12H8 biphenylene 1.096 -0.014
CH3COCl Acetyl Chloride 1.105 -0.014
CH2N2 diazirine 1.090 -0.014
CH2CF2 Ethene, 1,1-difluoro- 1.091 -0.013
C2H8N2 Ethylenediamine 1.109 -0.013
C8H8 cubane 1.097 -0.013
C5H8 1,4-Pentadiene 1.110 -0.013
C6H5NO2 Nitrobenzene 1.093 -0.013
CH2Cl chloromethyl radical 1.090 -0.013
C3H8O2 Methane, dimethoxy- 1.108 -0.013
CH3CH2NH2 Ethylamine 1.107 -0.013
CH2CHCHO Acrolein 1.099 -0.012
C3H2N2 Malononitrile 1.109 -0.012
CH3SH Methanethiol 1.104 -0.012
CH3CH2CHO Propanal 1.115 -0.012
CH3COOH Acetic acid 1.100 -0.012
H2CO Formaldehyde 1.111 -0.012
CH3CH(CH3)CH3 Isobutane 1.108 -0.011
CH3CN Acetonitrile 1.104 -0.011
C4H6O Cyclobutanone 1.100 -0.011
CH3CHO Acetaldehyde 1.114 -0.011
CH3O Methoxy radical 1.112 -0.010
C4H8O2 1,3-Dioxolane, 2-methyl- 1.102 -0.010
C2H2F2 Ethene, 1,2-difluoro-, (Z)- 1.089 -0.010
CH3ONO Methyl nitrite 1.102 -0.010
CH3CH2CHO Propanal 1.103 -0.010
CH3OCHO methyl formate 1.101 -0.010
CH2NH Methanimine 1.103 -0.009
CH3CCl2CH3 Propane, 2,2-dichloro- 1.101 -0.009
C5H8 Cyclobutane, methylene- 1.101 -0.009
C3H6S Thietane 1.100 -0.009
C2H3Cl Ethene, chloro- 1.090 -0.009
C5H6S Thiophene, 3-methyl- 1.090 -0.009
C5H8 Bicyclo[2.1.0]pentane 1.095 -0.009
C6H5CH2CH3 Ethylbenzene 1.094 -0.009
C4H8O2 1,3-Dioxane 1.095 -0.008
CH2O2 Dioxirane 1.090 -0.008
C5H8O 2H-Pyran, 3,4-dihydro- 1.090 -0.008
HCOOH Formic acid 1.097 -0.008
C3H4N2 1H-Pyrazole 1.083 -0.007
C5H6 1-Buten-3-yne, 2-methyl- 1.091 -0.007
CHF3 Methane, trifluoro- 1.091 -0.007
HFCO formyl fluoride 1.095 -0.007
C4H4N2 1,3-Diazine 1.087 -0.007
C3H4N2 1H-Pyrazole 1.082 -0.007
C5H8 Bicyclo[2.1.0]pentane 1.085 -0.007
CHF2Cl difluorochloromethane 1.090 -0.006
CH2CHF Ethene, fluoro- 1.087 -0.006
CH3CH2CHO Propanal 1.105 -0.006
CH2CHCHO Acrolein 1.106 -0.006
C6H8 1,3-Cyclohexadiene 1.100 -0.006
C4H6 Methylenecyclopropane 1.090 -0.006
CH3CH2OH Ethanol 1.098 -0.006
CH3NO3 Methyl nitrate 1.095 -0.006
CH2 Methylene 1.085 -0.005
CH2C(CH3)OCH3 1-Propene, 2-methoxy- 1.087 -0.005
C6H8 1,3-Cyclohexadiene 1.090 -0.005
CH3OH Methyl alcohol 1.096 -0.005
CH2CS Thioketene 1.090 -0.005
C3H4N2 1H-Pyrazole 1.080 -0.005
C6H8 Bicyclo[3.1.0]hex-2-ene 1.089 -0.005
C2H3Br vinyl bromide 1.088 -0.005
C3H5ClO Oxirane, (chloromethyl)- 1.095 -0.005
C6H6 Benzvalene 1.078 -0.004
CH3NO nitrosomethane 1.094 -0.004
CH3CH2CHO Propanal 1.096 -0.004
CH2NOH formaldoxime 1.086 -0.004
C6H5CH3 toluene 1.100 -0.004
CH2PH Phosphaethene 1.090 -0.004
C4H6O Furan, 2,5-dihydro- 1.100 -0.004
C4H6 Cyclobutene 1.083 -0.004
CHFClBr fluorochlorobromomethane 1.088 -0.004
CH2CHCHO Acrolein 1.087 -0.003
C6H10 cyclohexene 1.090 -0.003
CH3CH(CH3)CH3 Isobutane 1.100 -0.003
C3H8O2 Propylene glycol 1.095 -0.003
CH3CHCl2 Ethane, 1,1-dichloro- 1.090 -0.003
C5H6 1-Buten-3-yne, 2-methyl- 1.065 -0.003
CH3NHCH3 Dimethylamine 1.098 -0.003
C4H6 Methylenecyclopropane 1.088 -0.003
C6H12 Cyclohexane 1.101 -0.003
CH3SSCH3 Disulfide, dimethyl 1.097 -0.003
CH2C(CH3)CH3 1-Propene, 2-methyl- 1.088 -0.003
C3H3NO Oxazole 1.075 -0.003
C4H5N (E)-2-Butenenitrile 1.090 -0.003
CH3ONO Methyl nitrite 1.090 -0.003
C5H8 Bicyclo[2.1.0]pentane 1.095 -0.003
C3H3NO Oxazole 1.075 -0.003
C4H4O Furan 1.076 -0.003
CH2PH Phosphaethene 1.090 -0.002
CH2FCl fluorochloromethane 1.090 -0.002
C2H4F2 1,2-difluoroethane 1.094 -0.002
CH2BrF Methane, bromofluoro- 1.090 -0.002
CH3SCH2CH3 Ethane, (methylthio)- 1.097 -0.002
C4H8 cyclobutane 1.093 -0.002
C4H6 Cyclobutene 1.094 -0.002
C5H8 Cyclopentene 1.085 -0.002
C3H4 cyclopropene 1.088 -0.002
CHOCHCHCH3 2-Butenal 1.108 -0.002
CH3Cl Methyl chloride 1.090 -0.002
C2H5N Aziridine 1.083 -0.002
C6H6 Benzvalene 1.082 -0.002
C4H4N2 1,3-Diazine 1.082 -0.002
CH3PH2 Methyl phosphine 1.094 -0.002
C3H3N acrylonitrile 1.086 -0.002
CH2CO Ketene 1.083 -0.002
C3H4O Cyclopropanone 1.086 -0.002
CH2CCH2 allene 1.087 -0.002
CH3NC methyl isocyanide 1.094 -0.002
C5H8 Cyclopentene 1.095 -0.001
H2NCH2COOH Glycine 1.096 -0.001
C3H3NO Oxazole 1.073 -0.001
CH3CCH propyne 1.096 -0.001
C3H4 cyclopropene 1.072 -0.001
CH2CHCH2CH3 1-Butene 1.095 -0.001
CH2CHOH ethenol 1.086 -0.001
C2H2F2 Ethene, 1,2-difluoro-, (E)- 1.080 -0.001
C2H5F fluoroethane 1.095 -0.001
C4H4N2 Pyrazine 1.083 -0.001
C2H4 Ethylene 1.086 -0.001
C6H8 Bicyclo[3.1.0]hex-2-ene 1.082 -0.001
C4H6S Thiophene, 2,5-dihydro- 1.085 -0.001
CH3SeCH3 dimethylselenide 1.093 -0.001
C3H6 Cyclopropane 1.083 -0.001
CH2CHCH2CH3 1-Butene 1.090 -0.001
HCN Hydrogen cyanide 1.064 -0.001
CH2CHF Ethene, fluoro- 1.082 -0.001
C4H10O Propane, 2-methoxy- 1.095 -0.001
C2H4O Ethylene oxide 1.084 -0.001
C4H5N Pyrrole 1.076 -0.001
C6H10 cyclohexene 1.100 -0.001
C2H2 Acetylene 1.063 -0.001
C6H6 Benzene 1.084 -0.001
CH3CCl3 Ethane, 1,1,1-trichloro- 1.093 -0.000
C4H10O Ethoxy ethane 1.100 -0.000
C6H5F Fluorobenzene 1.083 -0.000
C4H4S Thiophene 1.079 -0.000
C3H8 Propane 1.096 -0.000
C3H7SH 1-Propanethiol 1.094 -0.000
CH3SiH3 methyl silane 1.096 -0.000
C6H6 Fulvene 1.080 -0.000
CH3CHFCH3 2-Fluoropropane 1.094 -0.000
C4H6S Thiophene, 2,5-dihydro- 1.095 -0.000
CH3CHFCH3 2-Fluoropropane 1.093 -0.000
CH3OCH3 Dimethyl ether 1.099 -0.000
CH3OC2H5 Ethane, methoxy- 1.099 -0.000
C6H5OH phenol 1.082 -0.000
CH3CHClCH3 Propane, 2-chloro- 1.091 0.000
C4H8 cyclobutane 1.091 0.000
C6H6 Benzvalene 1.078 0.000
C2H5N Aziridine 1.084 0.000
CH3CHS Thioacetaldehyde 1.098 0.000
CH2NOH formaldoxime 1.085 0.000
C6H5NH2 aniline 1.084 0.000
CHClCCl2 Trichloroethylene 1.080 0.000
C2H4S Thiirane 1.083 0.000
C2H3 vinyl 1.080 0.000
C6H5CN phenyl cyanide 1.082 0.000
CH3OC2H5 Ethane, methoxy- 1.100 0.000
CHF2CHF2 1,1,2,2-tetrafluoroethane 1.087 0.000
CH3OC2H5 Ethane, methoxy- 1.092 0.000
C6H5F Fluorobenzene 1.081 0.000
CH3SOCH3 Dimethyl sulfoxide 1.093 0.000
C6H8 1,4-Cyclohexadiene 1.100 0.000
C6H5CH3 toluene 1.083 0.000
HCCCN Cyanoacetylene 1.062 0.000
C3H4O Methylketene 1.083 0.001
CH(CN)3 tricyanomethane 1.100 0.001
CH2Cl2 Methylene chloride 1.085 0.001
CH3NO3 Methyl nitrate 1.088 0.001
CH3 Methyl radical 1.079 0.001
CH3OCHO methyl formate 1.086 0.001
C6H5Cl chlorobenzene 1.082 0.001
C6H5OH phenol 1.084 0.001
CH3CHS Thioacetaldehyde 1.090 0.001
C2H2+ acetylene cation 1.077 0.001
C2H3Br vinyl bromide 1.080 0.001
C4H10O Ethoxy ethane 1.092 0.001
C5H10 Cyclopropane, 1,1-dimethyl- 1.095 0.001
C3H8 Propane 1.094 0.001
C5H4O2 4-Cyclopentene-1,3-dione 1.093 0.001
CH3NO nitrosomethane 1.092 0.001
CHOCHCHCH3 2-Butenal 1.084 0.001
C6H6 Fulvene 1.078 0.001
C6H5Cl chlorobenzene 1.081 0.001
CH3SCH3 Dimethyl sulfide 1.091 0.001
CH2CHOH ethenol 1.079 0.002
CH3CCH propyne 1.060 0.002
C4H10O Propane, 2-methoxy- 1.095 0.002
CH3SCH2CH3 Ethane, (methylthio)- 1.092 0.002
C6H5CH3 toluene 1.081 0.002
C2H5F fluoroethane 1.091 0.002
CH2NN diazomethane 1.075 0.002
CH2C(CH3)CH3 1-Propene, 2-methyl- 1.095 0.002
CH2CHCHO Acrolein 1.081 0.002
C6H5F Fluorobenzene 1.080 0.002
CH3CH(CH3)CN Propanenitrile, 2-methyl- 1.092 0.002
C6H5CN phenyl cyanide 1.080 0.002
C2H5Br Ethyl bromide 1.087 0.002
C4H10O Ethoxy ethane 1.090 0.002
C2H5Br Ethyl bromide 1.093 0.003
C5H6 1-Buten-3-yne, 2-methyl- 1.090 0.003
C4H4Se selenophene 1.079 0.003
C4H4N2 Succinonitrile 1.092 0.003
C2H6O2S Dimethyl sulfone 1.091 0.003
CH3CHFCH3 2-Fluoropropane 1.092 0.003
C2H5F fluoroethane 1.090 0.003
C6H12 Cyclohexane 1.093 0.003
H2CCCCH2 Butatriene 1.083 0.003
CHOCHCHCH3 2-Butenal 1.090 0.003
C2H6 Ethane 1.091 0.003
C4H5N (E)-2-Butenenitrile 1.090 0.003
H2CS Thioformaldehyde 1.087 0.003
C5H10 2-Pentene, (Z)- 1.092 0.003
C3H6O Propylene oxide 1.082 0.003
C6H5CN phenyl cyanide 1.080 0.003
CH3NO2 Methane, nitro- 1.088 0.003
CH3SCH2CH3 Ethane, (methylthio)- 1.090 0.003
C2H6O2 1,2-Ethanediol 1.093 0.003
C6H5Cl chlorobenzene 1.079 0.003
HCCl Chloromethylene 1.119 0.003
C5H6 Cyclopropylacetylene 1.080 0.003
CH3CH(CH3)CH3 Isobutane 1.092 0.003
HCS+ Thioformyl cation 1.079 0.003
CH3CH2Cl Ethyl chloride 1.089 0.003
C5H10 Cyclopropane, 1,1-dimethyl- 1.080 0.003
C5H8O Cyclopentanone 1.095 0.003
CH3CHClCH3 Propane, 2-chloro- 1.092 0.003
C3H6O Propylene oxide 1.090 0.004
CH3COF Acetyl fluoride 1.084 0.004
C10H16 adamantane 1.093 0.004
CH3I methyl iodide 1.084 0.004
C3H7SH 1-Propanethiol 1.090 0.004
C6H8 Bicyclo[3.1.0]hex-2-ene 1.078 0.004
C5H6 1-Buten-3-yne, 2-methyl- 1.081 0.004
C3H7SH 1-Propanethiol 1.092 0.004
CH3CH2Cl Ethyl chloride 1.086 0.004
C4H4N2 1,3-Diazine 1.079 0.004
CH3OC2H5 Ethane, methoxy- 1.089 0.004
C6H5CH3 toluene 1.081 0.004
C4H2 Diacetylene 1.058 0.004
CH3SeH Methane selenol 1.088 0.004
C4H10O Propane, 2-methoxy- 1.090 0.004
CH3CH2SH ethanethiol 1.091 0.004
CH3SCH2CH3 Ethane, (methylthio)- 1.089 0.004
C2H3Cl Ethene, chloro- 1.079 0.004
CH3CHS Thioacetaldehyde 1.089 0.004
CH3CHSHCH3 2-Propanethiol 1.091 0.004
HCP Phosphaethyne 1.067 0.004
CH4 Methane 1.087 0.005
CH3OC2H5 Ethane, methoxy- 1.086 0.005
C6H10O cyclohexanone 1.088 0.005
C4H5N (E)-2-Butenenitrile 1.081 0.005
CH2CHF Ethene, fluoro- 1.077 0.005
CH3CH2Cl Ethyl chloride 1.090 0.005
CH3CHO Acetaldehyde 1.086 0.005
C2H3Br vinyl bromide 1.080 0.005
CH3CH2OH Ethanol 1.088 0.005
CH3CHFCH3 2-Fluoropropane 1.088 0.005
CHOCHCHCH3 2-Butenal 1.086 0.005
C3H8 Propane 1.089 0.005
CHClCHCl Ethene, 1,2-dichloro-, (E)- 1.075 0.005
CH3OCH3 Dimethyl ether 1.085 0.005
C6H10 1-Butyne, 3,3-dimethyl- 1.056 0.005
CH2F2 Methane, difluoro- 1.084 0.005
CH3CH(CH3)CN Propanenitrile, 2-methyl- 1.091 0.006
C6H8 Bicyclo[3.1.0]hex-2-ene 1.091 0.006
CH3F Methyl fluoride 1.087 0.006
C2H5CN ethyl cyanide 1.087 0.006
CH3Br methyl bromide 1.082 0.006
C5H10 2-Pentene, (E)- 1.082 0.006
HCCCl Chloroacetylene 1.055 0.006
HCCBr bromoacetylene 1.055 0.006
C2H3 vinyl 1.085 0.006
C6H5CCH phenylacetylene 1.055 0.006
CH3SCH2CH3 Ethane, (methylthio)- 1.087 0.006
CH2NH Methanimine 1.081 0.007
C5H6 Cyclopropylacetylene 1.055 0.007
CH2Br2 dibromomethane 1.079 0.007
HCCF Fluoroacetylene 1.053 0.007
CH3OCl methyl hypochlorite 1.086 0.007
CH3NHCH3 Dimethylamine 1.098 0.007
SiH2(CH3)2 dimethylsilane 1.089 0.007
C6H5OH phenol 1.076 0.007
C2H5CN ethyl cyanide 1.088 0.008
CH3CH2O Ethoxy radical 1.086 0.008
CH3CF3 Ethane, 1,1,1-trifluoro- 1.081 0.008
CH3CH2O Ethoxy radical 1.085 0.008
CH3S thiomethoxy 1.090 0.008
CH3NHCH3 Dimethylamine 1.084 0.009
C8H8 cyclooctatetraene 1.079 0.009
C4H4Se selenophene 1.070 0.009
C5H8 1,3-Butadiene, 2-methyl- 1.076 0.009
CH3NH2 methyl amine 1.093 0.009
C3H7N Cyclopropylamine 1.080 0.010
C3H4O Methylketene 1.083 0.010
C6H5Br bromobenzene 1.072 0.010
CH3CHF2 Ethane, 1,1-difluoro- 1.081 0.011
GeH3CH3 methyl germane 1.083 0.011
CH2NCH3 N-methylmethanimine 1.089 0.011
CHCl3 Chloroform 1.073 0.011
CH2CCl2 Ethene, 1,1-dichloro- 1.070 0.012
CH3CH2OH Ethanol 1.086 0.012
CH3CH2O Ethoxy radical 1.088 0.012
C5H6S Thiophene, 3-methyl- 1.081 0.013
C4H9N Pyrrolidine 1.090 0.014
C2H Ethynyl radical 1.047 0.017
C4H4N2 Pyridazine 1.064 0.018
CH3CCl(CH3)CH3 Propane, 2-chloro-2-methyl- 1.078 0.018
C3H5 Allyl radical 1.069 0.018
N(CH3)3 Trimethylamine 1.088 0.019
CH2I2 Diiodomethane 1.066 0.020
CH Methylidyne 1.120 0.020
CH2C(CH3)CH3 1-Propene, 2-methyl- 1.072 0.021
C5H10 2-Pentene, (Z)- 1.058 0.031
HCO Formyl radical 1.080 0.038
CH3SOCH3 Dimethyl sulfoxide 1.054 0.039
C4H4N2O2 Uracil 0.957 0.125
C4H4N2O2 Uracil 0.931 0.146
C4H10O Methyl propyl ether 1.099 0.348
C3H3NO Isoxazole 1.075 0.361
C4H6 1-Methylcyclopropene 1.070 0.459
C4H6 1-Methylcyclopropene 1.098 0.669
C4H6 1-Methylcyclopropene 1.098 0.684
C4H8S Thiophene, tetrahydro- 1.117 0.727
C4H6 1-Methylcyclopropene 1.087 0.747
C4H10O Ethanol, 1,1-dimethyl- 1.117 1.337
C4H6 1-Methylcyclopropene 1.087 2.345
C4H6 1-Methylcyclopropene 1.085 3.118