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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 B1B95/6-311G*

Species Name Bond type Bond Length (Å)
Experimental Calculated Difference
C2H5NO3 Nitric acid, ethyl ester rCO 1.430 2.345 0.915
Be2 Beryllium diatomic rBeBe 2.460 2.007 -0.453
C4H6O2 2,3-Butanedione rCH 1.114 1.542 0.428
CH2ClCH2CH3 Propane, 1-chloro- rCH 1.113 1.522 0.409
CH2ClCH2CH3 Propane, 1-chloro- rCH 1.113 1.519 0.406
Al2 Aluminum diatomic rAlAl 2.701 3.052 0.350
C4H8O2 1,3-Dioxane rCH 1.095 1.394 0.299
ONNO NO dimer rNN 2.236 1.983 -0.253
Al2 Aluminum diatomic rAlAl 2.701 2.477 -0.224
Mg2 Magnesium diatomic rMgMg 3.891 3.684 -0.207
Si2 Silicon diatomic rSiSi 2.246 2.045 -0.201
Ne2 Neon dimer rNeNe 3.100 2.922 -0.178
FO2 Dioxygen monofluoride rFO 1.649 1.802 0.153
AlN Aluminum nitride rNAl 1.786 1.674 -0.112
He2+ helium dimer cation rHeHe 1.081 1.192 0.111
ClF+ clorine monofluoride cation rFCl 1.448 1.560 0.111
ZnS Zinc sulfide rSZn 2.046 2.144 0.098
ClFO3 Perchloryl fluoride rFCl 1.598 1.681 0.083
CO Carbon monoxide rCO 1.206 1.125 -0.081
CO Carbon monoxide rCO 1.206 1.125 -0.081
B2 Boron diatomic rBB 1.590 1.517 -0.073
NaK Sodium Potassium rNaK 3.589 3.516 -0.073
CH2ClCHCl2 1,1,2-trichloroethane rCC 1.580 1.511 -0.069
ClNO2 Nitryl chloride rNCl 1.840 1.905 0.065
CH3CHNOH Acetaldoxime rCC 1.550 1.486 -0.064
C2 Carbon diatomic rCC 1.243 1.305 0.062
BN boron nitride rBN 1.325 1.263 -0.062
ClS2 Sulfur chloride rSCl 2.071 2.130 0.059
BrF5 bromine pentafluoride rFBr 1.689 1.748 0.059
C5H10 2-Pentene, (E)- rCC 1.576 1.518 -0.058
PCl5 Phosphorus pentachloride rPCl 2.214 2.157 -0.057
B2 Boron diatomic rBB 1.590 1.644 0.054
BHCl2 Borane, dichloro- rBH 1.130 1.184 0.054
CH2SHCH2SH 1,2-Ethanedithiol rSH 1.400 1.347 -0.053
SOCl2 thionyl chloride rSCl 2.076 2.128 0.052
CH3O Methoxy radical rCO 1.405 1.353 -0.052
C5H6 Bicyclo[2.1.0]pent-2-ene rCC 1.560 1.509 -0.051
C5H8O 2H-Pyran, 3,4-dihydro- rCO 1.405 1.355 -0.050
38 molecules.