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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 MP2FU/6-311G*

Species Name Bond type Bond Length (Å)
Experimental Calculated Difference
C2H5NO3 Nitric acid, ethyl ester rCO 1.430 2.343 0.913
Be2 Beryllium diatomic rBeBe 2.460 1.794 -0.666
C4H6O2 2,3-Butanedione rCH 1.114 1.542 0.428
Mg2 Magnesium diatomic rMgMg 3.891 4.314 0.424
CH2ClCH2CH3 Propane, 1-chloro- rCH 1.113 1.527 0.414
CH2ClCH2CH3 Propane, 1-chloro- rCH 1.113 1.524 0.411
C4H8O2 1,3-Dioxane rCH 1.095 1.402 0.307
Al2 Aluminum diatomic rAlAl 2.701 2.991 0.290
Ne2 Neon dimer rNeNe 3.100 2.818 -0.282
FO2 Dioxygen monofluoride rFO 1.649 1.375 -0.274
Al2 Aluminum diatomic rAlAl 2.701 2.465 -0.236
B2 Boron diatomic rBB 1.590 1.385 -0.205
Si2 Silicon diatomic rSiSi 2.246 2.064 -0.182
AlN Aluminum nitride rNAl 1.786 1.635 -0.152
NO3 Nitrogen trioxide rNO 1.238 1.379 0.141
Na2+ sodium dimer cation rNaNa 3.540 3.659 0.119
ClFO3 Perchloryl fluoride rFCl 1.598 1.711 0.113
ClNO2 Nitryl chloride rNCl 1.840 1.952 0.112
ClF+ clorine monofluoride cation rFCl 1.448 1.552 0.104
LiO lithium oxide rLiO 1.688 1.589 -0.100
ClNO Nitrosyl chloride rNCl 1.975 2.074 0.099
ZnS Zinc sulfide rSZn 2.046 2.134 0.087
NaK Sodium Potassium rNaK 3.589 3.503 -0.086
Si2 Silicon diatomic rSiSi 2.246 2.163 -0.083
PS phosphorus sulfide rPS 1.900 1.817 -0.083
C2 Carbon diatomic rCC 1.243 1.323 0.080
SeO Selenium monoxide rSeO 1.639 1.711 0.072
HNO2 Nitrous acid rNO 1.442 1.371 -0.071
CO Carbon monoxide rCO 1.206 1.138 -0.068
CO Carbon monoxide rCO 1.206 1.138 -0.068
CH2ClCHCl2 1,1,2-trichloroethane rCC 1.580 1.515 -0.065
SOCl2 thionyl chloride rSCl 2.076 2.141 0.065
Li2 Lithium diatomic rLiLi 2.673 2.737 0.064
B2 Boron diatomic rBB 1.590 1.526 -0.064
BrF5 bromine pentafluoride rFBr 1.689 1.751 0.062
PCl5 Phosphorus pentachloride rPCl 2.214 2.155 -0.059
Se2 Selenium diatomic rSeSe 2.166 2.225 0.059
SO Sulfur monoxide rSO 1.481 1.539 0.058
CH3CHNOH Acetaldoxime rCC 1.550 1.493 -0.057
LiCl- lithium chloride anion rLiCl 2.180 2.123 -0.057
BHCl2 Borane, dichloro- rBH 1.130 1.186 0.056
CH2SHCH2SH 1,2-Ethanedithiol rSH 1.400 1.344 -0.056
HCF Fluoromethylene rCH 1.138 1.085 -0.053
NaLi lithium sodium rLiNa 2.889 2.941 0.052
I2 Iodine diatomic rII 2.665 2.718 0.052
CuO Copper Monoxide rCuO 1.724 1.672 -0.052
ClF3 Chlorine trifluoride rFCl 1.697 1.749 0.052
C5H10 2-Pentene, (E)- rCC 1.576 1.524 -0.052
Na2Cl2 Disodium dichloride rNaCl 2.584 2.532 -0.052
As2 Arsenic diatomic rAsAs 2.103 2.154 0.051
C3H5 Allyl radical rCC 1.428 1.378 -0.050
51 molecules.