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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 PBEPBE/6-31G**

17 02 03 13 22
Species Name Bond type Bond Length (Å)
Experimental Calculated Difference
C3H3NO Isoxazole rCH 1.075 1.425 0.350
C2H4O3 trioxolane124 rCN 1.303 2.202 0.899
C4H10O Methyl propyl ether rCC 1.530 1.103 -0.427
C4H10O Methyl propyl ether rCH 1.099 1.415 0.316
CaO Calcium monoxide rOCa 1.822 2.042 0.220
C4H6 1-Methylcyclopropene rCH 1.085 4.247 3.162
C4H6 1-Methylcyclopropene rCH 1.087 3.436 2.349
C4H6 1-Methylcyclopropene rCC 1.476 2.275 0.799
C4H6 1-Methylcyclopropene rCH 1.087 1.839 0.752
C4H6 1-Methylcyclopropene rCH 1.098 1.791 0.693
C4H6 1-Methylcyclopropene rCH 1.098 1.769 0.671
C4H6 1-Methylcyclopropene rCH 1.070 1.517 0.447
C4H6 1-Methylcyclopropene rCC 1.515 1.104 -0.411
C4H6 1-Methylcyclopropene rCC 1.300 1.512 0.212
CH3SO2NH2 methanesulfonamide rCN 1.207 1.718 0.511
ClFO3 Perchloryl fluoride rFCl 1.598 1.705 0.107
CaBr Calcium monobromide rCaBr 2.594 2.696 0.102
LiK Lithium Potassium rLiK 3.270 3.389 0.119
GaP Gallium monophosphide rPGa 2.450 2.231 -0.219
Ne2 Neon diatomic rNeNe 3.100 2.492 -0.608
Ne2+ Neon diatomic cation rNeNe 1.765 1.886 0.121
Cu2 Copper diatomic rCuCu 2.220 2.009 -0.211
ClOOCl Dichlorine dioxide rOCl 1.704 1.944 0.240
ClOOCl Dichlorine dioxide rOO 1.426 1.261 -0.165
Ar2+ Argon diatomic cation rArAr 2.320 2.682 0.362
Ar2 Argon diatomic rArAr 3.758 3.863 0.105
ClNO2 Nitryl chloride rNCl 1.840 1.954 0.114
Al2Cl6 Aluminum, di-μ-chlorotetrachlorodi- rAlCl 2.040 2.297 0.257
Al2Cl6 Aluminum, di-μ-chlorotetrachlorodi- rAlCl 2.240 2.098 -0.142
HSSSH trisulfane rHS 1.344 2.098 0.755
CaH Calcium monohydride rCaH 2.003 2.132 0.130
CaCl calcium monochloride rClCa 2.437 2.566 0.129
S4 Sulfur tetramer rSS 2.155 2.609 0.454
CaS Calcium sulfide rSCa 2.318 2.489 0.171
AlP Aluminum monophosphide rAlP 2.400 2.233 -0.167
AlP Aluminum monophosphide rAlP 2.220 2.094 -0.126
Mg2 Magnesium diatomic rMgMg 3.891 3.499 -0.392
Al2 Aluminum diatomic rAlAl 2.701 2.497 -0.204
CaC Calcium monocarbide rCCa 2.302 2.434 0.133
39 molecules.