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18 10 26 16 45

MP2/6-31G(2df,p) 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 300
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 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 C4H6 Methylenecyclopropane-0.053
Most positive difference C4H6 1-Methylcyclopropene3.130

Bond lengths
Click on entry for experimental details.

Species Name Experimental (Å) Difference (Å)
C4H6 Methylenecyclopropane 1.088 -0.053
C4H6 Methylenecyclopropane 1.090 -0.051
C3H8O2 1,3-Propanediol 1.140 -0.047
C5H8O Methyl cyclopropyl ketone 1.126 -0.038
CH3CONH2 Acetamide 1.124 -0.038
C2H3CCH 1-Buten-3-yne 1.090 -0.029
C2H2O2 Ethanedial 1.132 -0.028
C6H14 Hexane 1.118 -0.027
C4H6O2 2,3-Butanedione 1.114 -0.026
HCONHCH3 N-methylformamide 1.114 -0.026
C2H6N2O2 Dimethylnitroamine 1.121 -0.026
C7H16 heptane 1.121 -0.025
CHBr3 bromoform 1.110 -0.024
C2H3CCH 1-Buten-3-yne 1.106 -0.024
CHClCHCl Ethene, 1,2-dichloro-, (Z)- 1.101 -0.024
CH2ClCH2CH3 Propane, 1-chloro- 1.113 -0.024
CH2ClCH2Cl Ethane, 1,2-dichloro- 1.112 -0.024
C3H7NO dimethylformamide 1.112 -0.024
Si(CH3)4 tetramethylsilane 1.115 -0.023
CH3CH2CH2CH3 Butane 1.117 -0.022
C2HF3 Trifluoroethylene 1.100 -0.022
C5H10 Cyclopentane 1.114 -0.022
C5H12 Pentane 1.118 -0.022
C5H8 Spiropentane 1.105 -0.022
C5H6 Propellane 1.106 -0.021
C5H12 Propane, 2,2-dimethyl- 1.114 -0.021
CH3OCl methyl hypochlorite 1.111 -0.021
C5H10S 2H-Thiopyran, tetrahydro- 1.114 -0.021
C3H6S3 1,3,5-Trithiane 1.114 -0.021
CH2ClCH2CH2CH3 Butane, 1-chloro- 1.110 -0.020
C5H10O 2H-Pyran, tetrahydro- 1.116 -0.020
C7H12 Norbornane 1.113 -0.020
C4H10O2 Ethane, 1,2-dimethoxy- 1.109 -0.020
CH2CF2 Ethene, 1,1-difluoro- 1.091 -0.018
C4H8O2 Ethyl acetate 1.105 -0.018
CH2CClCHCH2 1,3-Butadiene, 2-chloro- 1.098 -0.018
N(CH3)3 Trimethylamine 1.109 -0.018
C6H8 (Z)-hexa-1,3,5-triene 1.104 -0.017
CH3COCl Acetyl Chloride 1.105 -0.017
CH3COOH Acetic acid 1.100 -0.016
C3H2N2 Malononitrile 1.109 -0.016
CH3SH Methanethiol 1.104 -0.015
CH3COCH3 Acetone 1.103 -0.015
C5H8 Ethenylcyclopropane 1.099 -0.015
CH3CN Acetonitrile 1.104 -0.015
CH3CH2NH2 Ethylamine 1.107 -0.015
CH3CH2CHO Propanal 1.103 -0.015
C2H8N2 Ethylenediamine 1.109 -0.014
CH2CHOH ethenol 1.097 -0.014
C12H8 biphenylene 1.096 -0.012
CH3CCl2CH3 Propane, 2,2-dichloro- 1.101 -0.012
CH3CH(CH3)CH3 Isobutane 1.108 -0.012
C5H11N Piperidine 1.105 -0.012
C3H8O2 Methane, dimethoxy- 1.108 -0.012
CH3ONO Methyl nitrite 1.102 -0.011
CH3CHNOH Acetaldoxime 1.100 -0.011
CH2N2 diazirine 1.090 -0.011
C5H8 Cyclobutane, methylene- 1.101 -0.011
HCCl Chloromethylene 1.119 -0.010
C3H6S Thietane 1.100 -0.010
CH2 Methylene 1.085 -0.009
C8H8 cubane 1.097 -0.009
C5H8 Bicyclo[2.1.0]pentane 1.095 -0.009
CH3CH2CHO Propanal 1.105 -0.009
CH2NH Methanimine 1.103 -0.009
C2H2F2 Ethene, 1,2-difluoro-, (Z)- 1.089 -0.009
C2H3Cl Ethene, chloro- 1.090 -0.008
CH2CS Thioketene 1.090 -0.008
CH3CH2CHO Propanal 1.115 -0.008
CH2CHF Ethene, fluoro- 1.087 -0.008
CH3CH2OH Ethanol 1.098 -0.008
CH2C(CH3)OCH3 1-Propene, 2-methoxy- 1.087 -0.008
H2CO Formaldehyde 1.111 -0.007
CH3OH Methyl alcohol 1.096 -0.007
C6H5CH3 toluene 1.100 -0.007
CH3CH(CH3)CH3 Isobutane 1.100 -0.007
C5H8O 2H-Pyran, 3,4-dihydro- 1.090 -0.007
C4H8O2 1,3-Dioxane 1.095 -0.006
C2H3Br vinyl bromide 1.088 -0.006
C3H5ClO Oxirane, (chloromethyl)- 1.095 -0.006
C2H4F2 1,2-difluoroethane 1.099 -0.006
CH3CH2CHO Propanal 1.096 -0.006
CH2PH Phosphaethene 1.090 -0.006
CH2NOH formaldoxime 1.086 -0.006
CH3NHCH3 Dimethylamine 1.098 -0.006
CH3CHO Acetaldehyde 1.114 -0.005
CH2CO Ketene 1.083 -0.005
CH3PH2 Methyl phosphine 1.094 -0.005
CH3NC methyl isocyanide 1.094 -0.005
CH3CCH propyne 1.096 -0.005
CH2C(CH3)CH3 1-Propene, 2-methyl- 1.088 -0.005
C4H4N2 1,3-Diazine 1.087 -0.005
C3H4N2 1H-Pyrazole 1.082 -0.005
C3H4N2 1H-Pyrazole 1.083 -0.005
CH2PH Phosphaethene 1.090 -0.005
CH3COCH2CH3 2-Butanone 1.095 -0.005
CH2CHCHO Acrolein 1.089 -0.004
CH2CCH2 allene 1.087 -0.004
CH2CHCH2CH3 1-Butene 1.095 -0.004
CH3ONO Methyl nitrite 1.090 -0.004
CH3CHS Thioacetaldehyde 1.098 -0.004
CH3NO nitrosomethane 1.094 -0.004
CH3COCH2CH3 2-Butanone 1.096 -0.004
C5H8 Bicyclo[2.1.0]pentane 1.085 -0.004
C2H4 Ethylene 1.086 -0.004
CH3SeCH3 dimethylselenide 1.093 -0.004
C3H4N2 1H-Pyrazole 1.080 -0.004
CH3Cl Methyl chloride 1.090 -0.003
CH2CHOH ethenol 1.086 -0.003
CH3COCH2CH3 2-Butanone 1.093 -0.003
C3H3N acrylonitrile 1.086 -0.003
CH2CHCHO Acrolein 1.113 -0.003
C2H3 vinyl 1.080 -0.003
C3H7SH 1-Propanethiol 1.094 -0.003
CH3CHFCH3 2-Fluoropropane 1.093 -0.003
CH3CHFCH3 2-Fluoropropane 1.094 -0.003
CH3COCH2CH3 2-Butanone 1.091 -0.003
CH3OCHO methyl formate 1.101 -0.003
CH(CN)3 tricyanomethane 1.100 -0.003
C5H8 Cyclopentene 1.095 -0.003
C3H8 Propane 1.096 -0.003
CH3 Methyl radical 1.079 -0.003
CH3CHCl2 Ethane, 1,1-dichloro- 1.090 -0.003
HFCO formyl fluoride 1.095 -0.003
C3H4O Cyclopropanone 1.086 -0.003
C5H8 Bicyclo[2.1.0]pentane 1.095 -0.002
C4H6O Furan, 2,5-dihydro- 1.100 -0.002
CH2C(CH3)CH3 1-Propene, 2-methyl- 1.095 -0.002
CH Methylidyne 1.120 -0.002
CH3SOCH3 Dimethyl sulfoxide 1.093 -0.002
C2H2ClF 1-chloro-1-fluoroethylene 1.082 -0.002
CH2CHCH2CH3 1-Butene 1.090 -0.002
C2H2 Acetylene 1.063 -0.002
C4H6S Thiophene, 2,5-dihydro- 1.095 -0.002
C5H8 Cyclopentene 1.085 -0.002
C3H6 Cyclopropane 1.083 -0.002
C4H6 Cyclobutene 1.094 -0.002
C3H8 Propane 1.094 -0.002
CH3CHS Thioacetaldehyde 1.090 -0.002
CH2BrF Methane, bromofluoro- 1.090 -0.002
C4H8 cyclobutane 1.093 -0.002
C5H10 Cyclopropane, 1,1-dimethyl- 1.095 -0.002
CH3SCH3 Dimethyl sulfide 1.091 -0.001
CH3OCH3 Dimethyl ether 1.099 -0.001
CHF2Cl difluorochloromethane 1.090 -0.001
HOCH2COOH Hydroxyacetic acid 1.097 -0.001
HCOOH Formic acid 1.097 -0.001
CH2O2 Dioxirane 1.090 -0.001
CH2FCl fluorochloromethane 1.090 -0.001
C4H6S Thiophene, 2,5-dihydro- 1.085 -0.001
CH3CH(CH3)CN Propanenitrile, 2-methyl- 1.092 -0.001
C5H4O2 4-Cyclopentene-1,3-dione 1.093 -0.001
C2H5F fluoroethane 1.095 -0.001
CHF3 Methane, trifluoro- 1.091 -0.001
C2H6O2S Dimethyl sulfone 1.091 -0.001
C2H5N Aziridine 1.083 -0.001
CH2NN diazomethane 1.075 -0.001
C2H5N Aziridine 1.084 -0.001
C4H8 cyclobutane 1.091 -0.001
CHFClBr fluorochlorobromomethane 1.088 -0.001
C4H6 Cyclobutene 1.083 -0.001
C2H5Br Ethyl bromide 1.093 -0.001
CH3NO nitrosomethane 1.092 -0.001
CH2CHOH ethenol 1.079 -0.000
C4H4N2 Succinonitrile 1.092 -0.000
CH3CHClCH3 Propane, 2-chloro- 1.091 -0.000
C2H6 Ethane 1.091 -0.000
CH2CHCHO Acrolein 1.084 -0.000
C4H4S Thiophene 1.079 -0.000
CHOCHCHCH3 2-Butenal 1.090 -0.000
CH3CH(CH3)CH3 Isobutane 1.092 -0.000
C3H4 cyclopropene 1.088 -0.000
HCCCN Cyanoacetylene 1.062 -0.000
C6H6 Benzene 1.084 -0.000
C2H5F fluoroethane 1.091 -0.000
C2H5F fluoroethane 1.090 0.000
C3H6O Propylene oxide 1.090 0.000
CH3CH2Cl Ethyl chloride 1.089 0.000
CH3SeH Methane selenol 1.088 0.000
C2H4S Thiirane 1.083 0.000
C6H6 Benzvalene 1.078 0.000
CH3OCHO methyl formate 1.086 0.001
CH2Cl2 Methylene chloride 1.085 0.001
CH4 Methane 1.087 0.001
CH3CHClCH3 Propane, 2-chloro- 1.092 0.001
C6H6 Benzvalene 1.082 0.001
C5H8O Cyclopentanone 1.095 0.001
CH3CCH propyne 1.060 0.001
C2H4O Ethylene oxide 1.084 0.001
CHOCHCHCH3 2-Butenal 1.084 0.001
C6H5OH phenol 1.082 0.001
CH2CHF Ethene, fluoro- 1.082 0.001
CH2CHCHO Acrolein 1.081 0.001
HCN Hydrogen cyanide 1.064 0.001
C4H5N Pyrrole 1.076 0.001
C2H4F2 1,2-difluoroethane 1.093 0.001
C2H2F2 Ethene, 1,2-difluoro-, (E)- 1.080 0.001
CH3NO2 Methane, nitro- 1.088 0.001
CH2NOH formaldoxime 1.085 0.001
C3H3NO Oxazole 1.075 0.001
H2CCCCH2 Butatriene 1.083 0.001
C6H6 Benzvalene 1.078 0.001
C3H7SH 1-Propanethiol 1.090 0.001
C6H5CH3 toluene 1.083 0.001
C3H7SH 1-Propanethiol 1.092 0.001
C6H5CN phenyl cyanide 1.082 0.001
C2H3Br vinyl bromide 1.080 0.001
C2H2+ acetylene cation 1.077 0.001
CH3CH2SH ethanethiol 1.091 0.001
C3H3NO Oxazole 1.073 0.001
C6H5NH2 aniline 1.084 0.001
C3H3NO Oxazole 1.075 0.002
C2H5Br Ethyl bromide 1.087 0.002
C3H4 cyclopropene 1.072 0.002
C6H5Cl chlorobenzene 1.082 0.002
C10H8 Azulene 1.084 0.002
C10H8 Azulene 1.080 0.002
CH3COF Acetyl fluoride 1.084 0.002
C6H5OH phenol 1.084 0.002
CH3CH2Cl Ethyl chloride 1.090 0.002
C4H4N2 Pyrazine 1.083 0.002
C3H8 Propane 1.089 0.002
C10H16 adamantane 1.093 0.002
CH3CHO Acetaldehyde 1.086 0.002
SiH2(CH3)2 dimethylsilane 1.089 0.002
C6H5Cl chlorobenzene 1.081 0.002
CHOCHCHCH3 2-Butenal 1.108 0.002
C5H10 Cyclopropane, 1,1-dimethyl- 1.080 0.002
C2H3Cl Ethene, chloro- 1.079 0.002
CH3COCH2CH3 2-Butanone 1.093 0.003
CH3CH2Cl Ethyl chloride 1.086 0.003
C10H8 Azulene 1.081 0.003
H2CS Thioformaldehyde 1.087 0.003
CH3CH2OH Ethanol 1.088 0.003
C6H5CH3 toluene 1.081 0.003
C2H5CN ethyl cyanide 1.087 0.003
CHOCHCHCH3 2-Butenal 1.086 0.003
CH2CHF Ethene, fluoro- 1.077 0.003
CH3CHFCH3 2-Fluoropropane 1.088 0.003
C6H5CN phenyl cyanide 1.080 0.003
C2H6O2 1,2-Ethanediol 1.093 0.003
C2H3Br vinyl bromide 1.080 0.003
CH3CHFCH3 2-Fluoropropane 1.092 0.003
C4H4N2 1,3-Diazine 1.082 0.003
CH3NHCH3 Dimethylamine 1.098 0.003
CH3CH(CH3)CN Propanenitrile, 2-methyl- 1.091 0.003
C4H4Se selenophene 1.079 0.003
CH3Br methyl bromide 1.082 0.003
CH3CHS Thioacetaldehyde 1.089 0.004
HCS+ Thioformyl cation 1.079 0.004
C6H5Cl chlorobenzene 1.079 0.004
C2H3 vinyl 1.085 0.004
C4H2 Diacetylene 1.058 0.004
CH3F Methyl fluoride 1.087 0.004
CH3OCH3 Dimethyl ether 1.085 0.004
C6H5CN phenyl cyanide 1.080 0.004
CH3NH2 methyl amine 1.093 0.004
C2H5CN ethyl cyanide 1.088 0.004
C6H5CH3 toluene 1.081 0.004
HCP Phosphaethyne 1.067 0.005
CH3CH2O Ethoxy radical 1.085 0.005
HCCCl Chloroacetylene 1.055 0.005
CH3CH2O Ethoxy radical 1.086 0.005
CHClCHCl Ethene, 1,2-dichloro-, (E)- 1.075 0.006
C10H8 Azulene 1.081 0.006
HCCBr bromoacetylene 1.055 0.006
CH2CCl2 Ethene, 1,1-dichloro- 1.070 0.006
CHF2CHF2 1,1,2,2-tetrafluoroethane 1.087 0.006
CH3OCl methyl hypochlorite 1.086 0.006
C3H6O Propylene oxide 1.082 0.006
HCCF Fluoroacetylene 1.053 0.006
C10H8 Azulene 1.083 0.006
C6H5CCH phenylacetylene 1.055 0.006
C4H4N2 1,3-Diazine 1.079 0.007
CH3CHNOH Acetaldoxime 1.085 0.007
CH3NHCH3 Dimethylamine 1.084 0.007
GeH3CH3 methyl germane 1.083 0.007
CH3CF3 Ethane, 1,1,1-trifluoro- 1.081 0.007
CH2Br2 dibromomethane 1.079 0.008
CH2F2 Methane, difluoro- 1.084 0.008
C6H5OH phenol 1.076 0.008
CH2NH Methanimine 1.081 0.008
CH3CHF2 Ethane, 1,1-difluoro- 1.081 0.009
CH2NCH3 N-methylmethanimine 1.089 0.009
C4H4Se selenophene 1.070 0.009
C3H7N Cyclopropylamine 1.080 0.010
C6H5Br bromobenzene 1.072 0.011
CH3CH2OH Ethanol 1.086 0.011
C4H9N Pyrrolidine 1.090 0.012
CH3CH2O Ethoxy radical 1.088 0.012
C2H Ethynyl radical 1.047 0.013
CHONH2 formamide 1.090 0.015
N(CH3)3 Trimethylamine 1.088 0.016
C3H5 Allyl radical 1.069 0.016
CH2C(CH3)CH3 1-Propene, 2-methyl- 1.072 0.017
C4H4N2 Pyridazine 1.064 0.019
CH3SOCH3 Dimethyl sulfoxide 1.054 0.035
HCO Formyl radical 1.080 0.040
C4H10O Methyl propyl ether 1.099 0.307
C3H3NO Isoxazole 1.075 0.337
C4H6 1-Methylcyclopropene 1.070 0.438
C4H6 1-Methylcyclopropene 1.098 0.659
C4H6 1-Methylcyclopropene 1.098 0.677
C4H6 1-Methylcyclopropene 1.087 0.740
C3H6O 2-Propen-1-ol 1.096 0.996
C3H6O 2-Propen-1-ol 1.102 1.244
C3H6O 2-Propen-1-ol 1.078 1.417
C3H6O 2-Propen-1-ol 1.091 1.660
C4H6 1-Methylcyclopropene 1.087 2.325
C3H6O 2-Propen-1-ol 1.092 2.379
C4H6 1-Methylcyclopropene 1.085 3.130