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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 BLYP/6-31G**

17 02 03 13 22
Species Name Bond type Bond Length (Å)
Experimental Calculated Difference
C3H3NO Isoxazole rCH 1.075 1.431 0.356
C2H4O3 trioxolane124 rCN 1.303 2.230 0.927
C4H10O Methyl propyl ether rCC 1.530 1.103 -0.427
C4H10O Methyl propyl ether rCH 1.099 1.427 0.328
CH3OCl methyl hypochlorite rOCl 1.674 1.781 0.107
CaO Calcium monoxide rOCa 1.822 2.054 0.232
CFCl chlorofluoromethylene rCCl 1.714 1.830 0.116
C4H6 1-Methylcyclopropene rCH 1.085 4.250 3.165
C4H6 1-Methylcyclopropene rCH 1.087 3.454 2.367
C4H6 1-Methylcyclopropene rCC 1.476 2.282 0.806
C4H6 1-Methylcyclopropene rCH 1.087 1.837 0.750
C4H6 1-Methylcyclopropene rCH 1.098 1.790 0.692
C4H6 1-Methylcyclopropene rCH 1.098 1.770 0.672
C4H6 1-Methylcyclopropene rCH 1.070 1.526 0.456
C4H6 1-Methylcyclopropene rCC 1.515 1.103 -0.412
C4H6 1-Methylcyclopropene rCC 1.300 1.521 0.221
CH3SO2NH2 methanesulfonamide rCN 1.207 1.743 0.536
HClO4 perchloric acid rOCl 1.641 1.783 0.142
ClFO3 Perchloryl fluoride rFCl 1.598 1.736 0.138
SOCl2 thionyl chloride rSCl 2.076 2.203 0.127
BrF5 bromine pentafluoride rFBr 1.689 1.793 0.104
ClF3 Chlorine trifluoride rFCl 1.597 1.701 0.105
He2+ helium diatomic cation rHeHe 1.081 1.185 0.104
CaBr Calcium monobromide rCaBr 2.594 2.716 0.122
ClSSCl Disulfur dichloride rSCl 2.057 2.185 0.128
N2O4 Dinitrogen tetroxide rNN 1.782 1.895 0.113
N2O3 Dinitrogen trioxide rNN 1.864 1.982 0.118
LiK Lithium Potassium rLiK 3.270 3.385 0.115
GaP Gallium monophosphide rPGa 2.450 2.262 -0.188
CaOH Calcium monohydroxide rOCa 1.976 2.084 0.108
Ne2 Neon diatomic rNeNe 3.100 2.477 -0.623
Ne2+ Neon diatomic cation rNeNe 1.765 1.894 0.129
Cu2 Copper diatomic rCuCu 2.220 2.017 -0.203
ClOOCl Dichlorine dioxide rOCl 1.704 1.981 0.277
ClOOCl Dichlorine dioxide rOO 1.426 1.270 -0.156
NaO sodium monoxide rONa 2.052 1.940 -0.112
Ar2 Argon diatomic rArAr 3.758 4.301 0.543
Ar2+ Argon diatomic cation rArAr 2.320 2.726 0.406
ClNO2 Nitryl chloride rNCl 1.840 1.995 0.155
SF5Cl sulfur chloropentafluoride rSCl 2.030 2.158 0.128
Al2Cl6 Aluminum, di-μ-chlorotetrachlorodi- rAlCl 2.040 2.319 0.279
Al2Cl6 Aluminum, di-μ-chlorotetrachlorodi- rAlCl 2.240 2.109 -0.131
HSSSH trisulfane rHS 1.344 2.132 0.788
CaH Calcium monohydride rCaH 2.003 2.138 0.135
CaCl calcium monochloride rClCa 2.437 2.583 0.146
S4 Sulfur tetramer rSS 2.155 2.682 0.527
CaS Calcium sulfide rSCa 2.318 2.511 0.193
AlP Aluminum monophosphide rAlP 2.400 2.254 -0.146
AlP Aluminum monophosphide rAlP 2.220 2.110 -0.110
ClOF3 Chlorine trifluoride oxide rFCl 1.603 1.732 0.129
Al2 Aluminum diatomic rAlAl 2.701 2.534 -0.167
ClS2 Sulfur chloride rSCl 2.071 2.210 0.139
CaC Calcium monocarbide rCCa 2.302 2.459 0.157
53 molecules.