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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/6-311G**

Species Name Bond type Bond Length (Å)
Experimental Calculated Difference
S4 Sulfur tetramer rSS 2.155 2.893 0.738
CH3CH2SH ethanethiol rCH 1.095 1.825 0.730
Ar2 Argon diatomic rArAr 3.758 4.392 0.634
ONNO NO dimer rNN 2.236 1.756 -0.480
CH3SO2NH2 methanesulfonamide rCN 1.207 1.666 0.459
S4 Sulfur tetramer rSS 2.155 2.597 0.442
CH3CH2SH ethanethiol rCH 1.089 1.527 0.438
C4H10O Methyl propyl ether rCC 1.530 1.095 -0.435
CH3CH2SH ethanethiol rCH 1.092 1.527 0.435
C2H4F2 1,2-difluoroethane rCH 1.093 1.517 0.424
C2H4F2 1,2-difluoroethane rCH 1.093 1.507 0.414
CH2CHCH2F Allyl Fluoride rHC 1.130 1.501 0.371
GaP Gallium monophosphide rPGa 2.450 2.085 -0.365
GaP Gallium monophosphide rPGa 2.450 2.085 -0.365
GaP Gallium monophosphide rPGa 2.450 2.085 -0.365
GaP Gallium monophosphide rPGa 2.450 2.085 -0.365
C4H10O Methyl propyl ether rCH 1.099 1.403 0.304
CH3CH2SH ethanethiol rCC 1.528 1.825 0.297
CH3CH2SH ethanethiol rCS 1.820 1.527 -0.293
S4 Sulfur tetramer rSS 1.898 2.140 0.242
C2H2+ acetylene cation rCH 1.077 1.313 0.236
GaP Gallium monophosphide rPGa 2.450 2.243 -0.207
GaP Gallium monophosphide rPGa 2.450 2.243 -0.207
GaP Gallium monophosphide rPGa 2.450 2.243 -0.207
GaP Gallium monophosphide rPGa 2.450 2.243 -0.207
S3 Sulfur trimer rSS 1.917 2.109 0.192
ClF3 Chlorine trifluoride rFCl 1.597 1.770 0.173
ClF3 Chlorine trifluoride rFCl 1.597 1.770 0.173
Ar2+ Argon diatomic cation rArAr 2.320 2.491 0.171
GaP Gallium monophosphide rPGa 2.250 2.085 -0.165
GaP Gallium monophosphide rPGa 2.250 2.085 -0.165
GaP Gallium monophosphide rPGa 2.250 2.085 -0.165
GaP Gallium monophosphide rPGa 2.250 2.085 -0.165
GaP Gallium monophosphide rPGa 2.240 2.085 -0.155
GaP Gallium monophosphide rPGa 2.240 2.085 -0.155
GaP Gallium monophosphide rPGa 2.240 2.085 -0.155
GaP Gallium monophosphide rPGa 2.240 2.085 -0.155
GaP Gallium monophosphide rPGa 2.110 2.243 0.133
GaP Gallium monophosphide rPGa 2.110 2.243 0.133
GaP Gallium monophosphide rPGa 2.110 2.243 0.133
GaP Gallium monophosphide rPGa 2.110 2.243 0.133
N2 Nitrogen diatomic rNN 1.213 1.094 -0.118
N2 Nitrogen diatomic rNN 1.213 1.094 -0.118
SiP Silicon monophosphide rSiP 2.078 1.975 -0.102
ClF3 Chlorine trifluoride rFCl 1.697 1.770 0.073
ClF3 Chlorine trifluoride rFCl 1.697 1.770 0.073
PS phosphorus sulfide rPS 1.900 1.827 -0.073
ClOOCl Dichlorine dioxide rOO 1.426 1.362 -0.063
FNO2 Nitryl fluoride rNF 1.467 1.404 -0.063
C2H2+ acetylene cation rCC 1.253 1.316 0.063
ClOF3 Chlorine trifluoride oxide rFCl 1.603 1.655 0.052
HCF Fluoromethylene rCH 1.138 1.086 -0.052
CaBr Calcium monobromide rCaBr 2.594 2.644 0.050
53 molecules.