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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 HF/aug-cc-pVQZ

Species Name Bond type Bond Length (Å)
Experimental Calculated Difference
H2ONH3 Water Ammonia Dimer rNH 2.983 2.157 -0.826
Ne2 Neon dimer rNeNe 3.100 3.817 0.717
CH2ClCH2CH3 Propane, 1-chloro- rCH 1.113 1.526 0.413
CH2ClCH2CH3 Propane, 1-chloro- rCH 1.113 1.523 0.410
Al2 Aluminum diatomic rAlAl 2.701 2.995 0.293
C4H8O2 1,3-Dioxane rCH 1.095 1.381 0.286
B2 Boron diatomic rBB 1.590 1.335 -0.255
Si2 Silicon diatomic rSiSi 2.246 2.053 -0.193
Na2+ sodium dimer cation rNaNa 3.540 3.714 0.174
Al2 Aluminum diatomic rAlAl 2.701 2.544 -0.157
Na2 Sodium diatomic rNaNa 3.079 3.194 0.115
Li2 Lithium diatomic rLiLi 2.673 2.784 0.111
NaLi lithium sodium rLiNa 2.889 2.999 0.110
Si2 Silicon diatomic rSiSi 2.246 2.140 -0.106
CO Carbon monoxide rCO 1.206 1.102 -0.104
CO Carbon monoxide rCO 1.206 1.102 -0.104
BN boron nitride rBN 1.325 1.231 -0.094
H2O2 Hydrogen peroxide rOO 1.475 1.384 -0.091
B2 Boron diatomic rBB 1.590 1.501 -0.089
F2 Fluorine diatomic rFF 1.412 1.327 -0.085
HOF Hypofluorous acid rFO 1.442 1.362 -0.080
CF3OF Trifluoromethylhypofluorite rOF 1.421 1.351 -0.070
AlO Aluminum monoxide rAlO 1.618 1.685 0.067
HPO HPO rPO 1.512 1.446 -0.066
AlN Aluminum nitride rNAl 1.786 1.725 -0.061
HNO Nitrosyl hydride rNH 1.090 1.030 -0.060
B3N3H6 borazine rHN 1.050 0.991 -0.059
P2+ phosphorus dimer cation rPP 1.986 1.928 -0.058
NH2OH hydroxylamine rNO 1.453 1.395 -0.058
HOBr Hypobromous acid rBrO 1.834 1.778 -0.056
SeO Selenium monoxide rSeO 1.639 1.588 -0.052
NS+ nitrogen sulfide cation rNS 1.440 1.389 -0.051
32 molecules.