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 PBE1PBE/Def2TZVPP

Species Name Bond type Bond Length (Å)
Experimental Calculated Difference
C4H6 1-Methylcyclopropene rCH 1.085 4.199 3.114
C4H6 1-Methylcyclopropene rCH 1.087 3.401 2.314
C4H6 1-Methylcyclopropene rCC 1.476 2.250 0.774
C4H6 1-Methylcyclopropene rCH 1.087 1.824 0.737
CH3CH2SH ethanethiol rCH 1.095 1.818 0.723
CH3CH2SH ethanethiol rCH 1.095 1.814 0.719
C4H6 1-Methylcyclopropene rCH 1.098 1.775 0.677
S4 Sulfur tetramer rSS 2.155 2.832 0.677
C4H6 1-Methylcyclopropene rCH 1.098 1.755 0.657
ONNO NO dimer rNN 2.236 1.773 -0.463
C4H10O Methyl propyl ether rCC 1.530 1.093 -0.437
C4H6 1-Methylcyclopropene rCH 1.070 1.499 0.429
CH3CH2SH ethanethiol rCH 1.089 1.516 0.427
CH3CH2SH ethanethiol rCH 1.089 1.514 0.425
CH3CH2SH ethanethiol rCH 1.092 1.516 0.424
C4H6 1-Methylcyclopropene rCC 1.515 1.091 -0.424
CH3CH2SH ethanethiol rCH 1.092 1.514 0.422
C2H4F2 1,2-difluoroethane rCH 1.093 1.511 0.418
C2H4F2 1,2-difluoroethane rCH 1.093 1.498 0.405
CH2CHCH2F Allyl Fluoride rHC 1.130 1.487 0.357
CH2CHCH2F Allyl Fluoride rHC 1.130 1.486 0.356
C3H3NO Isoxazole rCH 1.075 1.416 0.341
S4 Sulfur tetramer rSS 2.155 2.485 0.330
CH3CH2SH ethanethiol rCS 1.820 1.514 -0.306
CH3CH2SH ethanethiol rCS 1.820 1.516 -0.304
C4H10O Methyl propyl ether rCH 1.099 1.398 0.299
CH3CH2SH ethanethiol rCC 1.528 1.818 0.290
CH3CH2SH ethanethiol rCC 1.528 1.814 0.286
Si2H2 disilyne rSiSi 2.215 1.963 -0.252
C2H2+ acetylene cation rCH 1.077 1.316 0.239
Ar2 Argon diatomic rArAr 3.758 3.976 0.218
Si2H2 disilyne rSiH 1.668 1.464 -0.204
S4 Sulfur tetramer rSS 1.898 2.099 0.201
C4H6 1-Methylcyclopropene rCC 1.300 1.499 0.199
Si2H2 disilyne rSiH 1.668 1.494 -0.174
S3 Sulfur trimer rSS 1.917 2.064 0.147
Si2H2 disilyne rSiSi 2.215 2.086 -0.129
N2 Nitrogen diatomic rNN 1.213 1.089 -0.123
N2 Nitrogen diatomic rNN 1.213 1.089 -0.123
Si2H2 disilyne rSiSi 2.215 2.101 -0.114
SiP Silicon monophosphide rSiP 2.078 1.973 -0.105
N2 Nitrogen diatomic rNN 1.098 1.196 0.098
N2 Nitrogen diatomic rNN 1.098 1.196 0.098
S4 Sulfur tetramer rSS 2.155 2.073 -0.082
GaCl3 Gallium trichloride rClGa 2.180 2.113 -0.068
C4H8O2 Ethyl acetate rCO 1.448 1.505 0.057
C3H3NO Isoxazole rCC 1.356 1.302 -0.054
Si2H2 disilyne rSiH 1.668 1.719 0.051
He2+ helium diatomic cation rHeHe 1.081 1.131 0.051
TeO2 Tellurium Dioxide rOTe 1.830 1.780 -0.050
50 molecules.