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: Calculated > Geometry > Bad Calculations > Bad Calculated Bond Lengths OR Resources > Bad Calculations > Geometry > Bad Calculated Bond Lengths

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/aug-cc-pVDZ

Species Name Bond type Bond Length (Å)
Experimental Calculated Difference
C4H6 1-Methylcyclopropene rCH 1.085 4.245 3.160
C4H6 1-Methylcyclopropene rCH 1.087 3.435 2.348
C4H6 1-Methylcyclopropene rCC 1.476 2.275 0.799
S4 Sulfur tetramer rSS 2.155 2.932 0.777
CH3CH2SH ethanethiol rCH 1.095 1.857 0.762
CH3CH2SH ethanethiol rCH 1.095 1.852 0.757
C4H6 1-Methylcyclopropene rCH 1.087 1.843 0.756
C4H6 1-Methylcyclopropene rCH 1.098 1.795 0.697
C4H6 1-Methylcyclopropene rCH 1.098 1.774 0.676
CH3SO2NH2 methanesulfonamide rCN 1.207 1.742 0.536
S4 Sulfur tetramer rSS 2.155 2.636 0.481
C4H6 1-Methylcyclopropene rCH 1.070 1.514 0.444
CH3CH2SH ethanethiol rCH 1.089 1.529 0.440
CH3CH2SH ethanethiol rCH 1.089 1.528 0.439
CH3CH2SH ethanethiol rCH 1.092 1.529 0.437
CH3CH2SH ethanethiol rCH 1.092 1.528 0.436
C2H4F2 1,2-difluoroethane rCH 1.093 1.525 0.432
C4H10O Methyl propyl ether rCC 1.530 1.104 -0.426
C2H4F2 1,2-difluoroethane rCH 1.093 1.511 0.418
C4H6 1-Methylcyclopropene rCC 1.515 1.103 -0.412
CH2CHCH2F Allyl Fluoride rHC 1.130 1.499 0.369
CH2CHCH2F Allyl Fluoride rHC 1.130 1.497 0.367
C3H3NO Isoxazole rCH 1.075 1.428 0.353
CH3CH2SH ethanethiol rCC 1.528 1.857 0.329
CH3CH2SH ethanethiol rCC 1.528 1.852 0.324
C4H10O Methyl propyl ether rCH 1.099 1.421 0.322
Ar2 Argon diatomic rArAr 3.758 4.064 0.306
CH3CH2SH ethanethiol rCS 1.820 1.528 -0.292
CH3CH2SH ethanethiol rCS 1.820 1.529 -0.291
S4 Sulfur tetramer rSS 1.898 2.172 0.274
C2H2+ acetylene cation rCH 1.077 1.333 0.256
ONNO NO dimer rNN 2.236 1.991 -0.245
Si2H2 disilyne rSiSi 2.215 1.995 -0.221
C4H6 1-Methylcyclopropene rCC 1.300 1.516 0.216
S3 Sulfur trimer rSS 1.917 2.126 0.209
Si2H2 disilyne rSiH 1.668 1.475 -0.193
S4 Sulfur tetramer rSS 2.155 2.341 0.186
Si2H2 disilyne rSiH 1.668 1.512 -0.156
FSN Thiazyl fluoride rFS 1.643 1.766 0.123
N2O4 Dinitrogen tetroxide rNN 1.782 1.903 0.121
N2 Nitrogen diatomic rNN 1.098 1.215 0.117
N2 Nitrogen diatomic rNN 1.098 1.215 0.117
He2+ helium diatomic cation rHeHe 1.081 1.187 0.106
N2 Nitrogen diatomic rNN 1.213 1.112 -0.101
N2 Nitrogen diatomic rNN 1.213 1.112 -0.101
N2 Nitrogen diatomic rNN 1.213 1.112 -0.101
N2 Nitrogen diatomic rNN 1.213 1.112 -0.101
GaAs Gallium arsenide rGaAs 2.530 2.628 0.098
GaAs Gallium arsenide rGaAs 2.530 2.621 0.091
Na2 Sodium diatomic rNaNa 3.079 3.170 0.091
NaLi lithium sodium rLiNa 2.889 2.979 0.090
AlBr Aluminum monobromide rAlBr 2.295 2.384 0.089
Si2H2 disilyne rSiH 1.668 1.757 0.089
Si2H2 disilyne rSiSi 2.215 2.128 -0.087
SF4 Sulfur tetrafluoride rSF 1.545 1.631 0.086
OPCl Phosphorus oxychloride rPCl 2.059 2.144 0.086
OClO Chlorine dioxide rClO 1.470 1.555 0.085
SiBr Silicon monobromide rSiBr 2.209 2.291 0.082
GaBr Gallium monobromide rGaBr 2.352 2.434 0.082
SF4 Sulfur tetrafluoride rSF 1.646 1.726 0.080
SiF2 Silicon difluoride rFSi 1.590 1.669 0.079
PF2 Phosphorus difluoride rPF 1.579 1.658 0.078
HSiCl Chlorosilylene rSiCl 2.067 2.144 0.077
GaCl Gallium monochloride rClGa 2.202 2.278 0.076
SF2 sulfur difluoride rSF 1.587 1.661 0.074
SiH2F2 difluorosilane rSiF 1.576 1.649 0.073
SF6 Sulfur Hexafluoride rSF 1.561 1.634 0.073
CFCl chlorofluoromethylene rCCl 1.714 1.787 0.073
NCl3 nitrogen trichloride rNCl 1.754 1.826 0.072
C2H2+ acetylene cation rCC 1.253 1.324 0.072
SeF4 Selenium tetrafluoride rFSe 1.682 1.753 0.071
SiH3F monofluorosilane rSiF 1.595 1.666 0.071
SiCl Clorosilylidyne rSiCl 2.061 2.132 0.071
C4H8O2 Ethyl acetate rCO 1.448 1.519 0.071
C2H6O2S Dimethyl sulfone rSO 1.431 1.501 0.070
HSiBr monobromosilylene rSiBr 2.237 2.307 0.070
SFCl Sulfur chloride fluoride rFS 1.606 1.676 0.070
SiHF3 trifluorosilane rSiF 1.563 1.633 0.070
FNO2 Nitryl fluoride rNF 1.467 1.536 0.069
Si2H2 disilyne rSiSi 2.215 2.146 -0.069
PF5 Phosphorus pentafluoride rPF 1.534 1.603 0.069
CH2ClCCCl 1,3-dichloropropyne rCCl 1.779 1.847 0.068
SO2 Sulfur dioxide rSO 1.432 1.499 0.067
SO3 Sulfur trioxide rSO 1.418 1.484 0.067
NH2SH Thiohydroxylamine rNS 1.705 1.771 0.066
NH2SH Thiohydroxylamine rNS 1.705 1.771 0.066
GeCl Germanium monochloride rClGe 2.164 2.230 0.066
SiBr+ Silicon monobromide cation rSiBr 2.095 2.161 0.066
SSO Disulfur monoxide rSO 1.456 1.521 0.064
SiP Silicon monophosphide rSiP 2.078 2.013 -0.064
HOSH hydrogen thioperoxide rSO 1.662 1.726 0.064
SF Monosulfur monofluoride rSF 1.599 1.663 0.064
SFCl Sulfur chloride fluoride rSCl 1.994 2.057 0.063
Cl2+ chlorine diatomic cation rClCl 1.892 1.955 0.063
AlF Aluminum monofluoride rAlF 1.654 1.718 0.063
LiBr Lithium Bromide rLiBr 2.170 2.233 0.063
AlNC Aluminum isocyanide rAlN 1.855 1.918 0.063
ClNO Nitrosyl chloride rNCl 1.975 2.038 0.063
SO Sulfur monoxide rSO 1.481 1.543 0.062
SO Sulfur monoxide rSO 1.481 1.543 0.062
SiH3Br bromosilane rSiBr 2.210 2.272 0.062
Br2 Bromine diatomic rBrBr 2.281 2.343 0.062
FNO Nitrosyl fluoride rNF 1.512 1.574 0.062
BrCl Bromine monochloride rClBr 2.136 2.197 0.061
CH3SSH Hydrogen methyl disulfide rSS 2.038 2.099 0.061
SO Sulfur monoxide rSO 1.481 1.542 0.061
SO Sulfur monoxide rSO 1.481 1.542 0.061
SiBr4 Silicon tetrabromide rSiBr 2.183 2.244 0.061
SeF4 Selenium tetrafluoride rFSe 1.771 1.831 0.060
CH3SOCH3 Dimethyl sulfoxide rSO 1.485 1.545 0.060
SiH3Cl chlorosilane rSiCl 2.051 2.111 0.060
SSO Disulfur monoxide rSS 1.884 1.944 0.060
GeF4 Germanium tetrafluoride rFGe 1.670 1.729 0.059
LiCl lithium chloride rLiCl 2.021 2.080 0.059
S2N2 Disulfur dinitride rNS 1.642 1.701 0.059
CH2BrF Methane, bromofluoro- rCBr 1.915 1.974 0.059
GeF Germanium monofluoride rFGe 1.745 1.803 0.058
HCO Formyl radical rCH 1.080 1.138 0.058
PF5 Phosphorus pentafluoride rFP 1.577 1.633 0.056
CH3CHClCH3 Propane, 2-chloro- rCCl 1.798 1.854 0.056
MgH magnesium monohydride rMgH 1.730 1.786 0.056
ZnCN Zinc monocyanide rCZn 1.950 2.005 0.056
CH2CHCH2F Allyl Fluoride rCF 1.370 1.425 0.055
CH2CHCH2F Allyl Fluoride rCF 1.370 1.425 0.055
ClF Chlorine monofluoride rFCl 1.628 1.683 0.055
CH3SOCH3 Dimethyl sulfoxide rCS 1.799 1.854 0.055
GeBr4 Germanium tetrabromide rGeBr 2.272 2.326 0.054
PO Phosphorus monoxide rPO 1.476 1.529 0.053
GaF Gallium monofluoride rFGa 1.774 1.827 0.053
GeH3F monofluorogermane rGeF 1.731 1.784 0.053
GeF+ Germanium monofluoride cation rFGe 1.665 1.718 0.052
NH2SH Thiohydroxylamine rNS 1.719 1.771 0.052
NH2SH Thiohydroxylamine rNS 1.719 1.771 0.052
H2S2 Disulfane rSS 2.056 2.109 0.052
HN3 hydrogen azide rNH 0.975 1.027 0.052
GeCl2 Germanium dichloride rClGe 2.186 2.238 0.052
S2 Sulfur diatomic rSS 1.889 1.941 0.052
C2H6O2S Dimethyl sulfone rCS 1.777 1.827 0.050
138 molecules.