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 B1B95/3-21G*

17 02 03 13 22
Species Name Bond type Bond Length (Å)
Experimental Calculated Difference
C3H3NO Isoxazole rCH 1.075 1.426 0.351
C2H4O3 trioxolane124 rCN 1.303 2.236 0.933
C4H10O Methyl propyl ether rCC 1.530 1.094 -0.436
C4H10O Methyl propyl ether rCH 1.099 1.443 0.344
CaO Calcium monoxide rOCa 1.822 2.040 0.218
ZnS Zinc sulfide rSZn 2.046 1.917 -0.129
CuO Copper Monoxide rCuO 1.724 1.616 -0.108
C4H6 1-Methylcyclopropene rCH 1.085 4.195 3.110
C4H6 1-Methylcyclopropene rCH 1.087 3.421 2.334
C4H6 1-Methylcyclopropene rCC 1.476 2.263 0.787
C4H6 1-Methylcyclopropene rCH 1.087 1.832 0.745
C4H6 1-Methylcyclopropene rCH 1.098 1.779 0.681
C4H6 1-Methylcyclopropene rCH 1.098 1.763 0.665
C4H6 1-Methylcyclopropene rCH 1.070 1.525 0.455
C4H6 1-Methylcyclopropene rCC 1.515 1.087 -0.428
C4H6 1-Methylcyclopropene rCC 1.300 1.525 0.225
CH3SO2NH2 methanesulfonamide rCN 1.207 1.631 0.424
CuCl Copper monochloride rCuCl 2.051 1.899 -0.152
He2+ helium diatomic cation rHeHe 1.081 1.229 0.148
LiK Lithium Potassium rLiK 3.270 3.385 0.115
GaP Gallium monophosphide rPGa 2.450 2.244 -0.206
Ne2 Neon diatomic rNeNe 3.100 3.316 0.216
Ar2+ Argon diatomic cation rArAr 2.320 2.595 0.275
Ar2 Argon diatomic rArAr 3.758 4.017 0.259
CuF Copper monofluoride rCuF 1.745 1.595 -0.150
Al2Cl6 Aluminum, di-μ-chlorotetrachlorodi- rAlCl 2.040 2.260 0.220
Al2Cl6 Aluminum, di-μ-chlorotetrachlorodi- rAlCl 2.240 2.074 -0.166
HSSSH trisulfane rHS 1.344 2.057 0.713
Be2 Beryllium diatomic rBeBe 2.460 2.654 0.194
CaH Calcium monohydride rCaH 2.003 2.167 0.165
CaCl calcium monochloride rClCa 2.437 2.613 0.176
CaS Calcium sulfide rSCa 2.318 2.525 0.207
AlP Aluminum monophosphide rAlP 2.400 2.199 -0.201
AlP Aluminum monophosphide rAlP 2.220 2.067 -0.153
Na2 Sodium diatomic rNaNa 3.079 2.309 -0.770
Mg2 Magnesium diatomic rMgMg 3.891 3.375 -0.515
Al2 Aluminum diatomic rAlAl 2.701 2.459 -0.242
CaC Calcium monocarbide rCCa 2.302 2.447 0.146
ZnCN Zinc monocyanide rCZn 1.950 1.830 -0.119
39 molecules.