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 M06-2X/STO-3G

17 02 03 13 22
Species Name Bond type Bond Length (Å)
Experimental Calculated Difference
CH3SOCH3 Dimethyl sulfoxide rSO 1.485 1.627 0.142
C2H6O2S Dimethyl sulfone rSO 1.431 1.624 0.193
C2H6O2S Dimethyl sulfone rCS 1.777 1.917 0.140
CF2Cl2 difluorodichloromethane rCCl 1.744 1.867 0.123
CF3Cl Methane, chlorotrifluoro- rCCl 1.752 1.894 0.142
C3H3NO Isoxazole rCH 1.075 1.432 0.357
CHF2CHF2 1,1,2,2-tetrafluoroethane rCC 1.511 1.620 0.109
C4H10O Methyl propyl ether rCC 1.530 1.096 -0.434
C4H10O Methyl propyl ether rCH 1.099 1.451 0.352
CH3OCl methyl hypochlorite rOCl 1.674 1.781 0.107
CHFClBr fluorochlorobromomethane rCCl 1.745 1.862 0.117
GaAs Gallium arsenide rGaAs 2.530 1.992 -0.538
CaO Calcium monoxide rOCa 1.822 2.157 0.335
LiOH lithium hydroxide rLiO 1.582 1.442 -0.140
GeH3CH3 methyl germane rGeH 1.529 1.400 -0.129
CFCl chlorofluoromethylene rCCl 1.714 1.881 0.167
HCCl Chloromethylene rCCl 1.696 1.809 0.113
C2H2ClF 1-chloro-1-fluoroethylene rCCl 1.704 1.806 0.102
SF6 Sulfur Hexafluoride rSF 1.561 1.691 0.130
SO2F2 Sulfuryl fluoride rOS 1.405 1.597 0.192
SO2F2 Sulfuryl fluoride rFS 1.530 1.709 0.179
C4H6 1-Methylcyclopropene rCH 1.085 4.239 3.154
C4H6 1-Methylcyclopropene rCH 1.087 3.458 2.371
C4H6 1-Methylcyclopropene rCC 1.476 2.265 0.789
C4H6 1-Methylcyclopropene rCH 1.087 1.827 0.740
C4H6 1-Methylcyclopropene rCH 1.098 1.785 0.687
C4H6 1-Methylcyclopropene rCH 1.098 1.776 0.678
C4H6 1-Methylcyclopropene rCH 1.070 1.511 0.441
C4H6 1-Methylcyclopropene rCC 1.515 1.097 -0.418
C4H6 1-Methylcyclopropene rCC 1.300 1.507 0.207
CH3SO2NH2 methanesulfonamide rCN 1.207 1.885 0.678
OH- hydroxide anion rOH 0.964 1.093 0.129
SO2 Sulfur dioxide rSO 1.432 1.590 0.158
SO3 Sulfur trioxide rSO 1.418 1.607 0.189
LiBr Lithium Bromide rLiBr 2.170 2.041 -0.130
HClO4 perchloric acid rOCl 1.404 1.818 0.414
HClO4 perchloric acid rOCl 1.414 1.819 0.405
HClO4 perchloric acid rOCl 1.641 1.943 0.302
NaH sodium hydride rNaH 1.887 1.658 -0.228
HCl+ hydrogen chloride cation rHCl 1.315 1.422 0.107
NaCl Sodium Chloride rNaCl 2.361 2.204 -0.157
PF5 Phosphorus pentafluoride rPF 1.534 1.646 0.112
NaF sodium fluoride rNaF 1.926 1.757 -0.169
NaI Sodium Iodide rNaI 2.711 2.538 -0.173
KH Potassium hydride rKH 2.243 2.086 -0.157
O2+ diatomic oxygen cation rOO 1.116 1.217 0.101
Cl2+ chlorine diatomic cation rClCl 1.892 2.052 0.161
Cl2 Chlorine diatomic rClCl 1.988 2.091 0.103
HN3 hydrogen azide rNH 0.975 1.077 0.102
F2SO Thionyl Fluoride rOS 1.413 1.581 0.168
F2SO Thionyl Fluoride rFS 1.585 1.707 0.121
GaF3 Gallium trifluoride rFGa 1.725 1.595 -0.130
SF4 Sulfur tetrafluoride rSF 1.545 1.709 0.164
LiF lithium fluoride rLiF 1.564 1.421 -0.143
FNO Nitrosyl fluoride rNO 1.136 1.252 0.116
ClF3 Chlorine trifluoride rFCl 1.597 1.838 0.241
ClF3 Chlorine trifluoride rFCl 1.697 1.817 0.121
He2+ helium diatomic cation rHeHe 1.081 1.224 0.143
HeH+ Helium hydride cation rHHe 0.790 0.946 0.156
FNO2 Nitryl fluoride rNO 1.180 1.286 0.106
OClO Chlorine dioxide rClO 1.470 1.771 0.301
NO+ nitric oxide cation rNO 1.066 1.173 0.108
LiI Lithium Iodide rLiI 2.392 2.272 -0.119
GaO Gallium monoxide rOGa 1.743 1.422 -0.321
GeS Germanium monosulfide rSGe 2.012 1.854 -0.158
LiK Lithium Potassium rLiK 3.270 3.026 -0.244
NaK Sodium Potassium rNaK 3.589 2.809 -0.780
ScO Scandium monoxide rOSc 1.668 1.863 0.195
GaP Gallium monophosphide rPGa 2.450 2.072 -0.378
GaP Gallium monophosphide rPGa 2.110 1.757 -0.353
GeSe Germanium monoselenide rGeSe 2.135 1.996 -0.139
Ne2+ Neon diatomic cation rNeNe 1.765 1.607 -0.158
NCl nitrogen monochloride rNCl 1.611 1.781 0.171
ClOOCl Dichlorine dioxide rOCl 1.704 1.806 0.102
NaLi lithium sodium rLiNa 2.889 2.409 -0.480
LiS Lithium monosulfide rLiS 2.150 2.010 -0.140
NaO sodium monoxide rONa 2.052 1.876 -0.176
Ar2+ Argon diatomic cation rArAr 2.320 2.440 0.120
GaCl3 Gallium trichloride rClGa 2.180 2.013 -0.167
SeF4 Selenium tetrafluoride rFSe 1.682 1.811 0.129
GeH3F monofluorogermane rGeH 1.515 1.406 -0.108
GaH Gallium monohydride rGaH 1.663 1.310 -0.353
GeH germylidene rGeH 1.588 1.409 -0.179
XeF2 Xenon difluoride rFXe 1.974 2.178 0.204
SOF4 Sulfur tetrafluoride oxide rSO 1.409 1.603 0.194
SOF4 Sulfur tetrafluoride oxide rFS 1.539 1.714 0.175
SOF4 Sulfur tetrafluoride oxide rFS 1.596 1.714 0.118
XeF4 Xenon tetrafluoride rFXe 1.935 2.180 0.245
NH3BF3 Amminetrifluoroboron rBN 1.673 1.944 0.271
KrF2 Krypton difluoride rFKr 1.875 2.027 0.152
SF5Cl sulfur chloropentafluoride rSCl 2.030 2.247 0.217
SF5Cl sulfur chloropentafluoride rFS 1.576 1.692 0.116
Al2Cl6 Aluminum, di-μ-chlorotetrachlorodi- rAlCl 2.040 2.239 0.199
Al2Cl6 Aluminum, di-μ-chlorotetrachlorodi- rAlCl 2.240 2.056 -0.184
HSSSH trisulfane rHS 1.344 2.087 0.743
GaF Gallium monofluoride rFGa 1.774 1.425 -0.350
NBr nitrogen monobromide rNBr 1.765 1.871 0.106
MgH magnesium monohydride rMgH 1.730 1.615 -0.114
IO Iodine monoxide rIO 1.868 2.027 0.159
GeF Germanium monofluoride rFGe 1.745 1.617 -0.128
GeF+ Germanium monofluoride cation rFGe 1.665 1.554 -0.112
ClO Monochlorine monoxide rClO 1.596 1.740 0.144
BrO Bromine monoxide rOBr 1.718 1.826 0.109
BrO+ Bromine monoxide cation rOBr 1.635 1.736 0.101
GaCl Gallium monochloride rClGa 2.202 1.872 -0.330
FSN Thiazyl fluoride rNS 1.448 1.579 0.131
CaS Calcium sulfide rSCa 2.318 2.459 0.141
GeO Germanium monoxide rOGe 1.625 1.447 -0.177
AlP Aluminum monophosphide rAlP 2.400 2.071 -0.329
AlP Aluminum monophosphide rAlP 2.220 1.915 -0.305
AlP Aluminum monophosphide rAlP 2.260 2.071 -0.189
SSO Disulfur monoxide rSO 1.456 1.600 0.143
OPCl Phosphorus oxychloride rPCl 2.059 2.169 0.111
GaBr Gallium monobromide rGaBr 2.352 2.003 -0.349
GeH2 germylene rGeH 1.588 1.432 -0.157
S2N2 Disulfur dinitride rNS 1.642 1.742 0.101
Na2 Sodium diatomic rNaNa 3.079 2.358 -0.721
K2 Potassium diatomic rKK 3.905 3.410 -0.495
Mg2 Magnesium diatomic rMgMg 3.891 2.737 -1.153
ClOF3 Chlorine trifluoride oxide rOCl 1.405 1.800 0.395
ClOF3 Chlorine trifluoride oxide rFCl 1.603 1.863 0.260
ClOF3 Chlorine trifluoride oxide rFCl 1.713 1.838 0.125
SFCl Sulfur chloride fluoride rSCl 1.994 2.112 0.118
CaC Calcium monocarbide rCCa 2.302 2.485 0.183
ZnCN Zinc monocyanide rCZn 1.950 1.831 -0.119
NaS Sodium sulfide rNaS 2.489 2.223 -0.266
126 molecules.