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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/cc-pVTZ

Species Name Bond type Bond Length (Å)
Experimental Calculated Difference
H2ONH3 Water Ammonia Dimer rNH 2.983 1.957 -1.026
C2H5NO3 Nitric acid, ethyl ester rCO 1.430 2.345 0.915
Be2 Beryllium diatomic rBeBe 2.460 2.008 -0.452
C4H6O2 2,3-Butanedione rCH 1.114 1.539 0.425
CH2ClCH2CH3 Propane, 1-chloro- rCH 1.113 1.520 0.407
CH2ClCH2CH3 Propane, 1-chloro- rCH 1.113 1.517 0.404
Al2 Aluminum diatomic rAlAl 2.701 3.030 0.329
C4H8O2 1,3-Dioxane rCH 1.095 1.393 0.298
ONNO NO dimer rNN 2.236 1.953 -0.283
Al2 Aluminum diatomic rAlAl 2.701 2.484 -0.217
Si2 Silicon diatomic rSiSi 2.246 2.052 -0.194
Mg2 Magnesium diatomic rMgMg 3.891 3.703 -0.188
Ne2 Neon dimer rNeNe 3.100 2.942 -0.158
AlN Aluminum nitride rNAl 1.786 1.675 -0.111
Na2+ sodium dimer cation rNaNa 3.540 3.639 0.099
Si2 Silicon diatomic rSiSi 2.246 2.148 -0.098
PCl5 Phosphorus pentachloride rPCl 2.214 2.126 -0.088
ClF+ clorine monofluoride cation rFCl 1.448 1.535 0.086
CO Carbon monoxide rCO 1.206 1.123 -0.083
CO Carbon monoxide rCO 1.206 1.123 -0.083
B2 Boron diatomic rBB 1.590 1.515 -0.075
CH2ClCHCl2 1,1,2-trichloroethane rCC 1.580 1.508 -0.072
FO2 Dioxygen monofluoride rFO 1.649 1.577 -0.072
CH3CHNOH Acetaldoxime rCC 1.550 1.483 -0.067
He2+ helium dimer cation rHeHe 1.081 1.144 0.063
BN boron nitride rBN 1.325 1.264 -0.061
C5H10 2-Pentene, (E)- rCC 1.576 1.515 -0.061
CH2SHCH2SH 1,2-Ethanedithiol rSH 1.400 1.340 -0.060
C2 Carbon diatomic rCC 1.243 1.302 0.059
C5H6 Bicyclo[2.1.0]pent-2-ene rCC 1.560 1.505 -0.055
C5H8O 2H-Pyran, 3,4-dihydro- rCO 1.405 1.351 -0.054
C3H5 Allyl radical rCC 1.428 1.375 -0.053
CH3O Methoxy radical rCO 1.405 1.352 -0.053
B2 Boron diatomic rBB 1.590 1.642 0.052
BHCl2 Borane, dichloro- rBH 1.130 1.181 0.051
N2O3 Dinitrogen trioxide rNN 1.864 1.813 -0.051
HCF Fluoromethylene rCH 1.138 1.088 -0.050
37 molecules.