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IV.D.7. (XVIII.A.2.)

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/aug-cc-pVDZ

Species Name Bond type Bond Length (Å)
Experimental Calculated Difference
Ne2 Neon dimer rNeNe 3.100 4.340 1.240
H2ONH3 Water Ammonia Dimer rNH 2.983 1.957 -1.026
C2H5NO3 Nitric acid, ethyl ester rCO 1.430 2.352 0.922
Be2 Beryllium diatomic rBeBe 2.460 2.019 -0.441
C4H6O2 2,3-Butanedione rCH 1.114 1.542 0.428
CH2ClCH2CH3 Propane, 1-chloro- rCH 1.113 1.523 0.410
CH2ClCH2CH3 Propane, 1-chloro- rCH 1.113 1.519 0.406
Al2 Aluminum diatomic rAlAl 2.701 3.034 0.333
ONNO NO dimer rNN 2.236 1.928 -0.308
C4H8O2 1,3-Dioxane rCH 1.095 1.398 0.303
B2 Boron diatomic rBB 1.590 1.374 -0.216
Mg2 Magnesium diatomic rMgMg 3.891 3.682 -0.209
Al2 Aluminum diatomic rAlAl 2.701 2.494 -0.207
Si2 Silicon diatomic rSiSi 2.246 2.066 -0.180
ClF+ clorine monofluoride cation rFCl 1.448 1.566 0.117
AlN Aluminum nitride rNAl 1.786 1.698 -0.089
ClFO3 Perchloryl fluoride rFCl 1.598 1.685 0.087
CO Carbon monoxide rCO 1.206 1.130 -0.075
CO Carbon monoxide rCO 1.206 1.130 -0.075
C2 Carbon diatomic rCC 1.243 1.315 0.072
CH2ClCHCl2 1,1,2-trichloroethane rCC 1.580 1.512 -0.068
PCl5 Phosphorus pentachloride rPCl 2.214 2.148 -0.066
CH3CHNOH Acetaldoxime rCC 1.550 1.486 -0.064
SO2F2 Sulfuryl fluoride rFS 1.530 1.593 0.063
B2 Boron diatomic rBB 1.590 1.529 -0.061
AlCl Aluminum monochloride rAlCl 2.130 2.191 0.061
BHCl2 Borane, dichloro- rBH 1.130 1.190 0.060
Li2 Lithium diatomic rLiLi 2.673 2.732 0.059
C5H10 2-Pentene, (E)- rCC 1.576 1.518 -0.058
SiF2 Silicon difluoride rFSi 1.590 1.646 0.056
N2O3 Dinitrogen trioxide rNN 1.864 1.808 -0.056
BN boron nitride rBN 1.325 1.269 -0.056
PF3 Phosphorus trifluoride rPF 1.561 1.616 0.055
SiF silicon monofluoride rSiF 1.604 1.660 0.055
SiH3F monofluorosilane rSiF 1.595 1.646 0.052
PF phosphorus monofluoride rPF 1.593 1.644 0.051
ClFO3 Perchloryl fluoride rClO 1.400 1.451 0.051
H2SO4 Sulfuric acid rSO 1.574 1.624 0.050
F3PO Phosphoryl fluoride rPF 1.524 1.574 0.050
39 molecules.