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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 MP2=FULL/TZVP

17 02 03 13 22
Species Name Bond type Bond Length (Å)
Experimental Calculated Difference
C3H3NO Isoxazole rCH 1.075 1.411 0.336
C4H10O Methyl propyl ether rCC 1.530 1.090 -0.440
C4H10O Methyl propyl ether rCH 1.099 1.411 0.312
CaO Calcium monoxide rOCa 1.822 2.071 0.249
KOH Potassium hydroxide rOK 2.212 2.322 0.110
C4H6 1-Methylcyclopropene rCH 1.085 4.204 3.119
C4H6 1-Methylcyclopropene rCH 1.087 3.407 2.320
C4H6 1-Methylcyclopropene rCC 1.476 2.251 0.775
C4H6 1-Methylcyclopropene rCH 1.087 1.826 0.739
C4H6 1-Methylcyclopropene rCH 1.098 1.773 0.675
C4H6 1-Methylcyclopropene rCH 1.098 1.758 0.660
C4H6 1-Methylcyclopropene rCH 1.070 1.506 0.436
C4H6 1-Methylcyclopropene rCC 1.515 1.087 -0.428
C4H6 1-Methylcyclopropene rCC 1.300 1.509 0.209
CH3SO2NH2 methanesulfonamide rCN 1.207 1.689 0.483
H2SO4 Sulfuric acid rOH 0.970 2.801 1.831
KH Potassium hydride rKH 2.243 2.363 0.120
CaBr2 Calcium dibromide rCaBr 2.616 2.754 0.138
CaBr Calcium monobromide rCaBr 2.594 2.798 0.204
LiK Lithium Potassium rLiK 3.270 3.461 0.191
GaP Gallium monophosphide rPGa 2.450 2.219 -0.231
Ar2 Argon diatomic rArAr 3.758 4.172 0.414
Ar2+ Argon diatomic cation rArAr 2.320 2.469 0.149
Al2Cl6 Aluminum, di-μ-chlorotetrachlorodi- rAlCl 2.040 2.267 0.227
Al2Cl6 Aluminum, di-μ-chlorotetrachlorodi- rAlCl 2.240 2.083 -0.157
HSSSH trisulfane rHS 1.344 2.080 0.737
CaH Calcium monohydride rCaH 2.003 2.155 0.153
FSN Thiazyl fluoride rFS 1.643 1.753 0.110
S4 Sulfur tetramer rSS 2.155 2.709 0.554
CaS Calcium sulfide rSCa 2.318 2.588 0.270
AlP Aluminum monophosphide rAlP 2.400 2.209 -0.191
AlP Aluminum monophosphide rAlP 2.220 2.059 -0.161
Na2 Sodium diatomic rNaNa 3.079 3.205 0.126
K2 Potassium diatomic rKK 3.905 4.146 0.241
Mg2 Magnesium diatomic rMgMg 3.891 6.038 2.148
CaC Calcium monocarbide rCCa 2.302 2.488 0.187
36 molecules.