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Bad Calculated Bond Lengths

List of molecules with calculated bond lengths that differ by more than 0.050 Å from experimental bond lengths.

Calculated at B97D3/6-31G

17 02 03 13 22
Species Name Bond type Bond Length (Å)
Experimental Calculated Difference
CH3SOCH3 Dimethyl sulfoxide rSO 1.485 1.676 0.191
CH3SOCH3 Dimethyl sulfoxide rCS 1.799 1.942 0.143
C2H6O2S Dimethyl sulfone rSO 1.431 1.645 0.214
C2H6O2S Dimethyl sulfone rCS 1.777 1.924 0.147
CH3Cl Methyl chloride rCCl 1.785 1.889 0.104
CH2BrCl Methane, bromochloro- rCCl 1.755 1.864 0.109
CH3CH2SH ethanethiol rCS 1.820 1.926 0.106
CH3CHClCH3 Propane, 2-chloro- rCCl 1.798 1.944 0.146
CF2Cl2 difluorodichloromethane rCCl 1.744 1.855 0.111
ClCOClCO Oxalyl chloride rCCl 1.744 1.862 0.118
C6H4Cl2 1,4-dichlorobenzene rCCl 1.729 1.830 0.101
CH2CClCHCH2 1,3-Butadiene, 2-chloro- rCCl 1.742 1.855 0.113
C3H3NO Isoxazole rCH 1.075 1.433 0.358
CH2BrF Methane, bromofluoro- rCBr 1.915 2.033 0.118
C2H4S Thiirane rCS 1.815 1.937 0.122
CHFClBr fluorochlorobromomethane rCCl 1.745 1.864 0.119
CH3CCl2CH3 Propane, 2,2-dichloro- rCCl 1.799 1.914 0.115
CH2ClCCCl 1,3-dichloropropyne rCCl 1.779 1.942 0.163
CaO Calcium monoxide rOCa 1.822 2.144 0.322
SiF2 Silicon difluoride rFSi 1.590 1.720 0.130
CFCl chlorofluoromethylene rCCl 1.714 1.916 0.202
C2H2ClF 1-chloro-1-fluoroethylene rCCl 1.704 1.811 0.107
SF6 Sulfur Hexafluoride rSF 1.561 1.759 0.198
ClNO Nitrosyl chloride rNCl 1.975 2.111 0.136
C4H6 1-Methylcyclopropene rCH 1.085 4.241 3.156
C4H6 1-Methylcyclopropene rCH 1.087 3.448 2.361
C4H6 1-Methylcyclopropene rCC 1.476 2.284 0.808
C4H6 1-Methylcyclopropene rCH 1.087 1.832 0.745
C4H6 1-Methylcyclopropene rCH 1.098 1.786 0.688
C4H6 1-Methylcyclopropene rCH 1.098 1.768 0.670
C4H6 1-Methylcyclopropene rCH 1.070 1.531 0.461
C4H6 1-Methylcyclopropene rCC 1.515 1.097 -0.418
C4H6 1-Methylcyclopropene rCC 1.300 1.529 0.229
CH3SO2NH2 methanesulfonamide rCN 1.207 1.888 0.681
NHCl2 dichloroamine rNCl 1.760 1.926 0.166
CBr Carbon monobromide rCBr 1.821 1.955 0.134
CH3SSH Hydrogen methyl disulfide rSS 2.038 2.268 0.230
CH2Cl chloromethyl radical rCCl 1.691 1.791 0.100
SeO2 Selenium dioxide rSeO 1.607 1.718 0.111
SO2 Sulfur dioxide rSO 1.432 1.632 0.200
SO3 Sulfur trioxide rSO 1.418 1.631 0.213
PF5 Phosphorus pentafluoride rPF 1.534 1.692 0.158
PF5 Phosphorus pentafluoride rFP 1.577 1.709 0.132
KH Potassium hydride rKH 2.243 2.352 0.109
HNO3 Nitric acid rNO 1.406 1.517 0.111
Br2 Bromine diatomic rBrBr 2.281 2.477 0.196
Cl2+ chlorine diatomic cation rClCl 1.892 2.147 0.255
NF3 Nitrogen trifluoride rNF 1.365 1.475 0.110
SF4 Sulfur tetrafluoride rSF 1.545 1.758 0.213
SF4 Sulfur tetrafluoride rSF 1.646 1.817 0.171
CaBr2 Calcium dibromide rCaBr 2.616 2.768 0.152
ClF Chlorine monofluoride rFCl 1.628 1.786 0.158
HOCl hypochlorous acid rClO 1.697 1.860 0.163
He2+ helium diatomic cation rHeHe 1.081 1.288 0.207
GeCl Germanium monochloride rClGe 2.164 2.307 0.143
FNO2 Nitryl fluoride rNF 1.467 1.570 0.103
CaBr Calcium monobromide rCaBr 2.594 2.844 0.250
NCl3 nitrogen trichloride rNCl 1.754 1.940 0.187
OClO Chlorine dioxide rClO 1.470 1.746 0.277
GeCl2 Germanium dichloride rClGe 2.186 2.307 0.121
SiO Silicon monoxide rSiO 1.510 1.610 0.100
N2O4 Dinitrogen tetroxide rNN 1.782 1.924 0.142
SiC2 Silicon dicarbide rCSi 1.836 1.946 0.110
Se2 Selenium diatomic rSeSe 2.166 2.298 0.132
As4 Arsenic tetramer rAsAs 2.435 2.579 0.144
NCl nitrogen monochloride rNCl 1.611 1.804 0.193
PS phosphorus sulfide rPS 1.900 2.046 0.146
SiS silicon monosulfide rSiS 1.929 2.050 0.121
Ar2 Argon diatomic rArAr 3.758 3.909 0.151
S3 Sulfur trimer rSS 1.917 2.125 0.208
SeO Selenium monoxide rSeO 1.639 1.752 0.113
H2S2 Disulfane rSS 2.056 2.277 0.220
SeF4 Selenium tetrafluoride rFSe 1.682 1.814 0.132
SiHF3 trifluorosilane rSiF 1.563 1.681 0.119
SiH3Br bromosilane rSiBr 2.210 2.321 0.111
SiH3Cl chlorosilane rSiCl 2.051 2.208 0.158
SiH3F monofluorosilane rSiF 1.595 1.716 0.122
HSiBr monobromosilylene rSiBr 2.237 2.375 0.138
SF2 sulfur difluoride rSF 1.587 1.760 0.172
SiH2F2 difluorosilane rSiF 1.576 1.699 0.123
SO Sulfur monoxide rSO 1.481 1.657 0.176
SO Sulfur monoxide rOS 1.500 1.657 0.157
SO+ sulfur monoxide cation rOS 1.424 1.579 0.155
BrCl Bromine monochloride rClBr 2.136 2.347 0.211
BrF Bromine monofluoride rFBr 1.759 1.883 0.124
PF2 Phosphorus difluoride rPF 1.579 1.735 0.155
HSiCl Chlorosilylene rSiCl 2.067 2.257 0.190
SiCl Clorosilylidyne rSiCl 2.061 2.247 0.186
NH2SH Thiohydroxylamine rNS 1.705 1.840 0.135
NH2SH Thiohydroxylamine rNS 1.719 1.841 0.122
PO Phosphorus monoxide rPO 1.476 1.613 0.137
SeCl2 Selenium Dichloride rClSe 2.157 2.340 0.183
SiBr Silicon monobromide rSiBr 2.209 2.363 0.154
SiBr+ Silicon monobromide cation rSiBr 2.095 2.240 0.145
ClO Monochlorine monoxide rClO 1.596 1.769 0.173
BrO Bromine monoxide rOBr 1.718 1.875 0.157
BrO+ Bromine monoxide cation rOBr 1.635 1.777 0.142
SF Monosulfur monofluoride rSF 1.599 1.756 0.157
GaCl Gallium monochloride rClGa 2.202 2.318 0.116
FSN Thiazyl fluoride rFS 1.643 1.872 0.229
FSN Thiazyl fluoride rNS 1.448 1.567 0.119
BH3PH3 borane phosphine rBP 1.937 2.043 0.106
S4 Sulfur tetramer rSS 2.155 2.797 0.642
S4 Sulfur tetramer rSS 1.898 2.073 0.175
CaS Calcium sulfide rSCa 2.318 2.639 0.321
SSO Disulfur monoxide rSS 1.884 2.114 0.230
SSO Disulfur monoxide rSO 1.456 1.649 0.193
OPCl Phosphorus oxychloride rPCl 2.059 2.298 0.240
OPCl Phosphorus oxychloride rPO 1.462 1.589 0.127
AlBr Aluminum monobromide rAlBr 2.295 2.419 0.124
S2 Sulfur diatomic rSS 1.889 2.077 0.188
S2N2 Disulfur dinitride rNS 1.642 1.846 0.204
Si2H2 disilyne rSiSi 2.215 2.343 0.128
HOSH hydrogen thioperoxide rSO 1.662 1.839 0.178
SFCl Sulfur chloride fluoride rSCl 1.994 2.238 0.244
SFCl Sulfur chloride fluoride rFS 1.606 1.766 0.160
CaC Calcium monocarbide rCCa 2.302 2.540 0.238
117 molecules.