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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 QCISD/cc-pVTZ

Species Name Bond type Bond Length (Å)
Experimental Calculated Difference
HO2 Hydroperoxy radical rOH 0.971 1.829 0.858
Mg2 Magnesium diatomic rMgMg 3.891 4.569 0.678
HO2 Hydroperoxy radical rOO 1.331 0.969 -0.362
Al2 Aluminum diatomic rAlAl 2.701 2.977 0.276
Al2 Aluminum diatomic rAlAl 2.701 2.501 -0.200
Na2+ sodium dimer cation rNaNa 3.540 3.709 0.169
Si2 Silicon diatomic rSiSi 2.246 2.084 -0.162
N2O3 Dinitrogen trioxide rNN 1.864 1.736 -0.128
FO2 Dioxygen monofluoride rFO 1.649 1.538 -0.111
Ne2 Neon dimer rNeNe 3.100 3.000 -0.100
Na2 Sodium diatomic rNaNa 3.079 3.178 0.099
ClF+ clorine monofluoride cation rFCl 1.448 1.546 0.097
AlN Aluminum nitride rNAl 1.786 1.702 -0.085
CO Carbon monoxide rCO 1.206 1.131 -0.074
CO Carbon monoxide rCO 1.206 1.131 -0.074
BN boron nitride rBN 1.325 1.253 -0.072
C2 Carbon diatomic rCC 1.243 1.314 0.072
B2 Boron diatomic rBB 1.590 1.524 -0.066
NaLi lithium sodium rLiNa 2.889 2.950 0.061
S2Cl2 Disulfur dichloride rSS 1.931 1.986 0.055
HCF Fluoromethylene rCH 1.138 1.085 -0.053
NaF sodium fluoride rNaF 1.926 1.978 0.052
22 molecules.