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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 M06-2X/aug-cc-pVTZ

17 02 03 13 22
Species Name Bond type Bond Length (Å)
Experimental Calculated Difference
C3H3NO Isoxazole rCH 1.075 1.421 0.346
C4H10O Methyl propyl ether rCC 1.530 1.091 -0.439
C4H10O Methyl propyl ether rCH 1.099 1.404 0.305
C4H6 1-Methylcyclopropene rCH 1.085 4.196 3.111
C4H6 1-Methylcyclopropene rCH 1.087 3.402 2.315
C4H6 1-Methylcyclopropene rCC 1.476 2.247 0.771
C4H6 1-Methylcyclopropene rCH 1.087 1.822 0.735
C4H6 1-Methylcyclopropene rCH 1.098 1.774 0.676
C4H6 1-Methylcyclopropene rCH 1.098 1.755 0.657
C4H6 1-Methylcyclopropene rCH 1.070 1.500 0.430
C4H6 1-Methylcyclopropene rCC 1.515 1.088 -0.427
C4H6 1-Methylcyclopropene rCC 1.300 1.501 0.201
CH3SO2NH2 methanesulfonamide rCN 1.207 1.665 0.458
PF3 Phosphorus trifluoride rFP 1.561 1.672 0.111
GaP Gallium monophosphide rPGa 2.450 2.252 -0.198
Ar2 Argon diatomic rArAr 3.758 4.112 0.354
Ar2+ Argon diatomic cation rArAr 2.320 2.473 0.153
SeO3 selenium trioxide rSeO 1.688 1.583 -0.105
Al2Cl6 Aluminum, di-μ-chlorotetrachlorodi- rAlCl 2.040 2.268 0.228
Al2Cl6 Aluminum, di-μ-chlorotetrachlorodi- rAlCl 2.240 2.077 -0.163
HSSSH trisulfane rHS 1.344 2.061 0.718
Be2 Beryllium diatomic rBeBe 2.460 2.743 0.283
S4 Sulfur tetramer rSS 2.155 2.052 -0.103
AlP Aluminum monophosphide rAlP 2.400 2.215 -0.185
AlP Aluminum monophosphide rAlP 2.220 2.095 -0.125
Na2 Sodium diatomic rNaNa 3.079 2.954 -0.125
26 molecules.