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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 CID/3-21G*

Species Name Bond type Bond Length (Å)
Experimental Calculated Difference
C2H5NO3 Nitric acid, ethyl ester rCO 1.430 2.373 0.943
CH2ClCH2CH3 Propane, 1-chloro- rCH 1.113 1.548 0.435
CH2ClCH2CH3 Propane, 1-chloro- rCH 1.113 1.544 0.431
C4H6O2 2,3-Butanedione rCH 1.114 1.532 0.418
C4H8O2 1,3-Dioxane rCH 1.095 1.437 0.342
Al2 Aluminum diatomic rAlAl 2.701 2.948 0.247
KCl Potassium Chloride rKCl 2.667 2.883 0.217
Si2 Silicon diatomic rSiSi 2.246 2.043 -0.203
Na2+ sodium dimer cation rNaNa 3.540 3.709 0.169
KH Potassium hydride rHK 2.243 2.387 0.144
ClF+ clorine monofluoride cation rFCl 1.448 1.583 0.135
CuF Copper monofluoride rCuF 1.745 1.627 -0.118
Ne2 Neon dimer rNeNe 3.100 2.987 -0.113
NCl nitrogen monochloride rNCl 1.611 1.718 0.107
AlN Aluminum nitride rNAl 1.786 1.691 -0.095
OH- hydroxide anion rOH 0.964 1.058 0.094
NaK Sodium Potassium rNaK 3.589 3.681 0.092
CH3OCl methyl hypochlorite rCO 1.389 1.479 0.090
NaLi lithium sodium rLiNa 2.889 2.978 0.089
He2+ helium dimer cation rHeHe 1.081 1.169 0.088
KBr Potassium Bromide rKBr 2.821 2.907 0.086
HO2 Hydroperoxy radical rOO 1.331 1.416 0.086
CuCl Copper monochloride rCuCl 2.051 1.966 -0.085
C2 Carbon diatomic rCC 1.243 1.325 0.083
BrO Bromine monoxide rOBr 1.718 1.800 0.082
O2+ diatomic oxygen cation rOO 1.116 1.196 0.080
NO- nitric oxide anion rNO 1.258 1.333 0.075
ZnS Zinc sulfide rSZn 2.046 1.972 -0.075
NO- nitric oxide anion rNO 1.258 1.330 0.072
CH3CH2O Ethoxy radical rCO 1.388 1.458 0.070
CH2O2 Dioxirane rCO 1.388 1.457 0.069
HCNO fulminic acid rNO 1.199 1.267 0.068
NF nitrogen fluoride rNF 1.317 1.383 0.066
NCl nitrogen monochloride rNCl 1.611 1.671 0.060
CH3I methyl iodide rCI 2.136 2.195 0.059
C3H8O2 1,3-Propanediol rCO 1.410 1.468 0.058
HN3 hydrogen azide rNH 0.975 1.032 0.057
SeO Selenium monoxide rSeO 1.639 1.697 0.057
CF2 Difluoromethylene rCF 1.297 1.354 0.057
HCF Fluoromethylene rCF 1.305 1.362 0.057
NH2OH hydroxylamine rNO 1.453 1.510 0.057
BH3NH3 borane ammonia rBN 1.645 1.699 0.053
MgH+ magnesium monohydride cation rHMg 1.652 1.704 0.052
CH2O2 Dioxirane rOO 1.516 1.568 0.052
SO Sulfur monoxide rSO 1.481 1.533 0.051
HCF Fluoromethylene rCH 1.138 1.087 -0.051
46 molecules.