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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 B97D3/TZVP

17 02 03 13 22
Species Name Bond type Bond Length (Å)
Experimental Calculated Difference
H2ONH3 Water Ammonia Dimer rNH 2.983 1.951 -1.032
C4H4N2O2 Uracil rNH 0.836 1.010 0.174
C4H4N2O2 Uracil rCH 0.931 1.082 0.151
C4H4N2O2 Uracil rNH 0.877 1.014 0.137
C4H4N2O2 Uracil rCH 0.957 1.086 0.129
C(CH3)3NH2 2-Propanamine, 2-methyl- rNH 1.048 1.481 0.433
C4H10O Ethanol, 1,1-dimethyl- rCH 1.117 2.441 1.324
C4H10O Ethanol, 1,1-dimethyl- rCO 1.446 2.180 0.734
C4H8S Thiophene, tetrahydro- rCC 1.532 3.314 1.782
C4H8S Thiophene, tetrahydro- rCH 1.117 1.859 0.742
C4H8S Thiophene, tetrahydro- rCS 1.835 2.163 0.328
C3H3NO Isoxazole rCH 1.075 1.423 0.348
C2H4O3 trioxolane124 rCN 1.303 1.418 0.115
C4H10O Methyl propyl ether rCC 1.530 1.097 -0.433
C4H10O Methyl propyl ether rCH 1.099 1.418 0.319
CaO Calcium monoxide rOCa 1.822 2.139 0.317
KOH Potassium hydroxide rOK 2.212 2.330 0.119
C4H6 1-Methylcyclopropene rCH 1.085 4.221 3.136
C4H6 1-Methylcyclopropene rCH 1.087 3.417 2.330
C4H6 1-Methylcyclopropene rCC 1.476 2.263 0.787
C4H6 1-Methylcyclopropene rCH 1.087 1.832 0.745
C4H6 1-Methylcyclopropene rCH 1.098 1.783 0.685
C4H6 1-Methylcyclopropene rCH 1.098 1.763 0.665
C4H6 1-Methylcyclopropene rCH 1.070 1.507 0.437
C4H6 1-Methylcyclopropene rCC 1.515 1.096 -0.419
C4H6 1-Methylcyclopropene rCC 1.300 1.507 0.207
CH3SO2NH2 methanesulfonamide rCN 1.207 1.727 0.521
HClO4 perchloric acid rOCl 1.641 1.776 0.135
ClFO3 Perchloryl fluoride rFCl 1.598 1.754 0.156
H2SO4 Sulfuric acid rOH 0.970 2.839 1.869
KH Potassium hydride rKH 2.243 2.369 0.126
SOCl2 thionyl chloride rSCl 2.076 2.182 0.106
CaBr2 Calcium dibromide rCaBr 2.616 2.766 0.150
ClF3 Chlorine trifluoride rFCl 1.597 1.803 0.206
ClF3 Chlorine trifluoride rFCl 1.697 1.803 0.106
He2+ helium diatomic cation rHeHe 1.081 1.186 0.105
CaBr Calcium monobromide rCaBr 2.594 2.833 0.240
ClSSCl Disulfur dichloride rSCl 2.057 2.170 0.113
N2O4 Dinitrogen tetroxide rNN 1.782 1.911 0.129
N2O3 Dinitrogen trioxide rNN 1.864 1.978 0.114
C2 Carbon diatomic rCC 1.243 1.403 0.161
CaOH Calcium monohydroxide rOCa 1.976 2.156 0.180
Ne2+ Neon diatomic cation rNeNe 1.765 2.052 0.287
Ne2 Neon diatomic rNeNe 3.100 3.205 0.105
Na2Cl2 Disodium dichloride rNaCl 2.584 3.362 0.778
ClOOCl Dichlorine dioxide rOCl 1.704 1.979 0.275
ClOOCl Dichlorine dioxide rOO 1.426 1.241 -0.185
NaLi lithium sodium rLiNa 2.889 2.999 0.110
Ar2 Argon diatomic rArAr 3.758 3.955 0.197
ClNO2 Nitryl chloride rNCl 1.840 1.982 0.142
SF5Cl sulfur chloropentafluoride rSCl 2.030 2.140 0.110
CaF Calcium monofluoride rFCa 1.967 2.172 0.205
Al2Cl6 Aluminum, di-μ-chlorotetrachlorodi- rAlCl 2.040 2.307 0.267
Al2Cl6 Aluminum, di-μ-chlorotetrachlorodi- rAlCl 2.240 2.101 -0.139
HSSSH trisulfane rHS 1.344 2.110 0.766
Li2+ lithium diatomic cation rLiLi 3.112 3.461 0.350
Li2 Lithium diatomic rLiLi 2.673 2.780 0.107
Be2 Beryllium diatomic rBeBe 2.460 2.038 -0.422
CaH Calcium monohydride rCaH 2.003 2.210 0.207
MgCl magnesium monochloride rMgCl 2.199 2.299 0.100
CaCl calcium monochloride rClCa 2.437 2.675 0.239
FSN Thiazyl fluoride rFS 1.643 1.750 0.107
S4 Sulfur tetramer rSS 2.155 2.479 0.324
CaS Calcium sulfide rSCa 2.318 2.590 0.272
AlP Aluminum monophosphide rAlP 2.400 2.247 -0.153
Na2 Sodium diatomic rNaNa 3.079 3.205 0.127
Mg2 Magnesium diatomic rMgMg 3.891 3.786 -0.105
ClS2 Sulfur chloride rSCl 2.071 2.195 0.124
CaC Calcium monocarbide rCCa 2.302 2.547 0.245
69 molecules.