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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 MP3=FULL/aug-cc-pVDZ

Species Name Bond type Bond Length (Å)
Experimental Calculated Difference
S4 Sulfur tetramer rSS 2.155 2.918 0.763
CH3CH2SH ethanethiol rCH 1.095 1.845 0.750
CH3SO2NH2 methanesulfonamide rCN 1.207 1.697 0.490
ONNO NO dimer rNN 2.236 1.783 -0.453
S4 Sulfur tetramer rSS 2.155 2.603 0.448
CH3CH2SH ethanethiol rCH 1.089 1.532 0.443
CH3CH2SH ethanethiol rCH 1.092 1.532 0.440
C2H4F2 1,2-difluoroethane rCH 1.093 1.522 0.429
C4H10O Methyl propyl ether rCC 1.530 1.102 -0.428
C2H4F2 1,2-difluoroethane rCH 1.093 1.511 0.418
CH2CHCH2F Allyl Fluoride rHC 1.130 1.505 0.375
GaP Gallium monophosphide rPGa 2.450 2.110 -0.340
GaP Gallium monophosphide rPGa 2.450 2.110 -0.340
GaP Gallium monophosphide rPGa 2.450 2.110 -0.340
GaP Gallium monophosphide rPGa 2.450 2.110 -0.340
C4H10O Methyl propyl ether rCH 1.099 1.417 0.318
CH3CH2SH ethanethiol rCC 1.528 1.845 0.317
CH3CH2SH ethanethiol rCS 1.820 1.532 -0.288
S4 Sulfur tetramer rSS 1.898 2.165 0.267
Ar2 Argon diatomic rArAr 3.758 4.016 0.258
C2H2+ acetylene cation rCH 1.077 1.326 0.250
S3 Sulfur trimer rSS 1.917 2.133 0.216
GaP Gallium monophosphide rPGa 2.450 2.271 -0.179
GaP Gallium monophosphide rPGa 2.450 2.271 -0.179
GaP Gallium monophosphide rPGa 2.450 2.271 -0.179
GaP Gallium monophosphide rPGa 2.450 2.271 -0.179
GaP Gallium monophosphide rPGa 2.110 2.271 0.161
GaP Gallium monophosphide rPGa 2.110 2.271 0.161
GaP Gallium monophosphide rPGa 2.110 2.271 0.161
GaP Gallium monophosphide rPGa 2.110 2.271 0.161
ClF3 Chlorine trifluoride rFCl 1.597 1.755 0.158
ClF3 Chlorine trifluoride rFCl 1.597 1.755 0.158
Ar2+ Argon diatomic cation rArAr 2.320 2.478 0.158
GaP Gallium monophosphide rPGa 2.250 2.110 -0.140
GaP Gallium monophosphide rPGa 2.250 2.110 -0.140
GaP Gallium monophosphide rPGa 2.250 2.110 -0.140
GaP Gallium monophosphide rPGa 2.250 2.110 -0.140
GaP Gallium monophosphide rPGa 2.240 2.110 -0.130
GaP Gallium monophosphide rPGa 2.240 2.110 -0.130
GaP Gallium monophosphide rPGa 2.240 2.110 -0.130
GaP Gallium monophosphide rPGa 2.240 2.110 -0.130
N2 Nitrogen diatomic rNN 1.213 1.106 -0.106
N2 Nitrogen diatomic rNN 1.213 1.106 -0.106
C2H2+ acetylene cation rCC 1.253 1.330 0.077
FSN Thiazyl fluoride rFS 1.643 1.715 0.072
AlBr Aluminum monobromide rAlBr 2.295 2.366 0.071
SiBr Silicon monobromide rSiBr 2.209 2.277 0.068
SiP Silicon monophosphide rSiP 2.078 2.010 -0.068
CH3SSH Hydrogen methyl disulfide rSS 2.038 2.104 0.066
SCl sulfur monochloride rSCl 1.975 2.037 0.062
Br2 Bromine diatomic rBrBr 2.281 2.340 0.059
ClF3 Chlorine trifluoride rFCl 1.697 1.755 0.058
ClF3 Chlorine trifluoride rFCl 1.697 1.755 0.058
Cl2+ chlorine diatomic cation rClCl 1.892 1.950 0.058
ClOF3 Chlorine trifluoride oxide rFCl 1.603 1.661 0.058
BrCl Bromine monochloride rClBr 2.136 2.193 0.057
SFCl Sulfur chloride fluoride rSCl 1.994 2.050 0.056
H2S2 Disulfane rSS 2.056 2.113 0.056
NCl nitrogen monochloride rNCl 1.611 1.666 0.056
SiF3 Silicon trifluoride radical rFSi 1.565 1.620 0.055
SiF silicon monofluoride rSiF 1.604 1.659 0.055
NH2SH Thiohydroxylamine rNS 1.705 1.759 0.054
NH2SH Thiohydroxylamine rNS 1.705 1.759 0.054
PF2 Phosphorus difluoride rPF 1.579 1.633 0.053
OPCl Phosphorus oxychloride rPCl 2.059 2.112 0.053
SiH2F2 difluorosilane rSiF 1.576 1.629 0.053
PS phosphorus sulfide rPS 1.900 1.849 -0.051
SiF+ silicon monofluoride cation rFSi 1.527 1.577 0.051
68 molecules.