return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Geometry > Bad Calculations > Bad Calculated Bond Lengths OR Resources > Bad Calculations > Geometry > Bad Calculated Bond Lengths

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/aug-cc-pVTZ

17 02 03 13 22
Species Name Bond type Bond Length (Å)
Experimental Calculated Difference
H2ONH3 Water Ammonia Dimer rNH 2.983 1.958 -1.025
C4H10O Ethanol, 1,1-dimethyl- rCH 1.117 2.421 1.304
C4H10O Ethanol, 1,1-dimethyl- rCO 1.446 2.161 0.715
C5H8O Cyclopentanone rCH 1.095 2.768 1.673
C5H8O Cyclopentanone rCC 1.557 2.454 0.897
C5H8O Cyclopentanone rCC 1.504 1.761 0.257
C5H8O Cyclopentanone rCO 1.215 1.088 -0.127
C3H3NO Isoxazole rCH 1.075 1.412 0.337
C3H3NO Oxazole rCH 1.073 3.151 2.078
C3H3NO Oxazole rCC 1.353 3.144 1.791
C3H3NO Oxazole rCH 1.075 2.198 1.123
C3H3NO Oxazole rCH 1.075 2.143 1.068
C3H3NO Oxazole rCO 1.357 2.235 0.878
C3H3NO Oxazole rCN 1.395 1.075 -0.320
C2H4O3 trioxolane124 rCN 1.303 2.181 0.878
CH3CF3 Ethane, 1,1,1-trifluoro- rCF 1.340 1.664 0.324
C4H10O Methyl propyl ether rCC 1.530 1.090 -0.440
C4H10O Methyl propyl ether rCH 1.099 1.412 0.313
C4H6 1-Methylcyclopropene rCH 1.085 4.210 3.125
C4H6 1-Methylcyclopropene rCH 1.087 3.409 2.322
C4H6 1-Methylcyclopropene rCC 1.476 2.253 0.777
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 1.756 0.658
C4H6 1-Methylcyclopropene rCH 1.070 1.509 0.439
C4H6 1-Methylcyclopropene rCC 1.515 1.087 -0.428
C4H6 1-Methylcyclopropene rCC 1.300 1.511 0.211
CH3SO2NH2 methanesulfonamide rCN 1.207 1.669 0.462
H2SO4 Sulfuric acid rOH 0.970 2.842 1.872
PF3 Phosphorus trifluoride rFP 1.561 1.676 0.115
GaP Gallium monophosphide rPGa 2.450 2.203 -0.247
ArH+ Argon hydride cation rArH 1.292 1.441 0.149
Al2Cl6 Aluminum, di-μ-chlorotetrachlorodi- rAlCl 2.040 2.275 0.235
Al2Cl6 Aluminum, di-μ-chlorotetrachlorodi- rAlCl 2.240 2.087 -0.153
HSSSH trisulfane rHS 1.344 2.062 0.719
Be2 Beryllium diatomic rBeBe 2.460 2.780 0.320
S4 Sulfur tetramer rSS 2.155 2.611 0.456
AlP Aluminum monophosphide rAlP 2.400 2.206 -0.194
AlP Aluminum monophosphide rAlP 2.220 2.061 -0.159
Mg2 Magnesium diatomic rMgMg 3.891 4.138 0.248
Al2 Aluminum diatomic rAlAl 2.701 2.474 -0.227
41 molecules.