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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 QCISD/6-31+G**

17 02 03 13 22
Species Name Bond type Bond Length (Å)
Experimental Calculated Difference
C3H3NO Isoxazole rCH 1.075 1.430 0.355
C2H4O3 trioxolane124 rCN 1.303 2.198 0.895
C4H10O Methyl propyl ether rCC 1.530 1.093 -0.437
C4H10O Methyl propyl ether rCH 1.099 1.419 0.320
C4H6 1-Methylcyclopropene rCH 1.085 4.218 3.133
C4H6 1-Methylcyclopropene rCH 1.087 3.428 2.341
C4H6 1-Methylcyclopropene rCC 1.476 2.261 0.785
C4H6 1-Methylcyclopropene rCH 1.087 1.822 0.735
C4H6 1-Methylcyclopropene rCH 1.098 1.776 0.678
C4H6 1-Methylcyclopropene rCH 1.098 1.762 0.664
C4H6 1-Methylcyclopropene rCH 1.070 1.511 0.441
C4H6 1-Methylcyclopropene rCC 1.515 1.089 -0.426
C4H6 1-Methylcyclopropene rCC 1.300 1.514 0.214
CH3SO2NH2 methanesulfonamide rCN 1.207 1.682 0.475
CaBr Calcium monobromide rCaBr 2.594 2.731 0.137
LiK Lithium Potassium rLiK 3.270 3.376 0.106
GaP Gallium monophosphide rPGa 2.450 2.244 -0.206
CaOH Calcium monohydroxide rOCa 1.976 2.114 0.138
Ar2 Argon diatomic rArAr 3.758 4.084 0.326
Ar2+ Argon diatomic cation rArAr 2.320 2.512 0.192
CaF Calcium monofluoride rFCa 1.967 2.097 0.130
Al2Cl6 Aluminum, di-μ-chlorotetrachlorodi- rAlCl 2.040 2.270 0.230
Al2Cl6 Aluminum, di-μ-chlorotetrachlorodi- rAlCl 2.240 2.081 -0.159
HSSSH trisulfane rHS 1.344 2.081 0.738
Be2 Beryllium diatomic rBeBe 2.460 5.171 2.711
CaH Calcium monohydride rCaH 2.003 2.123 0.121
CaCl calcium monochloride rClCa 2.437 2.574 0.137
CaS Calcium sulfide rSCa 2.318 2.524 0.206
AlP Aluminum monophosphide rAlP 2.400 2.240 -0.160
AlP Aluminum monophosphide rAlP 2.220 2.113 -0.107
K2 Potassium diatomic rKK 3.905 4.093 0.188
Mg2 Magnesium diatomic rMgMg 3.891 5.249 1.358
Al2 Aluminum diatomic rAlAl 2.701 2.297 -0.404
CaC Calcium monocarbide rCCa 2.302 2.435 0.134
34 molecules.