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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 MP3=FULL/6-31G

17 02 03 13 22
Species Name Bond type Bond Length (Å)
Experimental Calculated Difference
C2H6O2S Dimethyl sulfone rSO 1.431 1.654 0.223
CH2BrCl Methane, bromochloro- rCCl 1.755 1.865 0.110
C6H4Cl2 1,4-dichlorobenzene rCCl 1.729 1.833 0.104
C2H4S Thiirane rCS 1.815 1.936 0.121
C4H10O Methyl propyl ether rCC 1.530 1.101 -0.429
C4H10O Methyl propyl ether rCH 1.099 1.457 0.358
CHFClBr fluorochlorobromomethane rCCl 1.745 1.851 0.106
CH2ClCCCl 1,3-dichloropropyne rCCl 1.779 1.907 0.128
CaO Calcium monoxide rOCa 1.822 2.122 0.300
CFCl chlorofluoromethylene rCCl 1.714 1.887 0.173
C2H2ClF 1-chloro-1-fluoroethylene rCCl 1.704 1.809 0.105
SF6 Sulfur Hexafluoride rSF 1.561 1.726 0.165
CH3SO2NH2 methanesulfonamide rCN 1.207 1.790 0.583
NHCl2 dichloroamine rNCl 1.760 1.894 0.134
CBr Carbon monobromide rCBr 1.821 1.960 0.139
SiH2Cl2 dichlorosilane rSiCl 2.033 2.196 0.163
CH3SSH Hydrogen methyl disulfide rSS 2.038 2.283 0.245
CH2Cl chloromethyl radical rCCl 1.691 1.800 0.109
SO3 Sulfur trioxide rSO 1.418 1.603 0.186
LiCl lithium chloride rLiCl 2.021 2.130 0.109
KH Potassium hydride rKH 2.243 2.388 0.145
Br2 Bromine diatomic rBrBr 2.281 2.497 0.216
F2+ flourine diatomic cation rFF 1.322 1.422 0.100
Cl2+ chlorine diatomic cation rClCl 1.892 2.183 0.291
SF4 Sulfur tetrafluoride rSF 1.545 1.726 0.181
SF4 Sulfur tetrafluoride rSF 1.646 1.773 0.127
AsCl3 Arsenous trichloride rClAs 2.166 2.319 0.153
CaBr2 Calcium dibromide rCaBr 2.616 2.784 0.168
SiBr4 Silicon tetrabromide rSiBr 2.183 2.285 0.102
ClF Chlorine monofluoride rFCl 1.628 1.780 0.151
ClF3 Chlorine trifluoride rFCl 1.597 1.798 0.201
ClF3 Chlorine trifluoride rFCl 1.697 1.876 0.179
HOCl hypochlorous acid rClO 1.697 1.847 0.150
CaBr Calcium monobromide rCaBr 2.594 2.839 0.245
NCl3 nitrogen trichloride rNCl 1.754 1.904 0.150
SiF+ silicon monofluoride cation rFSi 1.527 1.642 0.116
SiF silicon monofluoride rSiF 1.604 1.713 0.109
GaP Gallium monophosphide rPGa 2.450 2.331 -0.119
As4 Arsenic tetramer rAsAs 2.435 2.613 0.178
NCl nitrogen monochloride rNCl 1.611 1.774 0.163
PS phosphorus sulfide rPS 1.900 2.086 0.186
ClOOCl Dichlorine dioxide rOCl 1.704 1.874 0.169
Ar2 Argon diatomic rArAr 3.758 4.414 0.656
Ar2+ Argon diatomic cation rArAr 2.320 2.620 0.300
S3 Sulfur trimer rSS 1.917 2.122 0.205
H2S2 Disulfane rSS 2.056 2.291 0.234
SiHF3 trifluorosilane rSiF 1.563 1.665 0.103
SiH3Br bromosilane rSiBr 2.210 2.331 0.121
SiH3Cl chlorosilane rSiCl 2.051 2.218 0.167
SOF4 Sulfur tetrafluoride oxide rFS 1.539 1.735 0.196
SOF4 Sulfur tetrafluoride oxide rSO 1.409 1.587 0.178
SOF4 Sulfur tetrafluoride oxide rFS 1.596 1.747 0.151
SF2 sulfur difluoride rSF 1.587 1.738 0.150
SiH2F2 difluorosilane rSiF 1.576 1.685 0.109
SO+ sulfur monoxide cation rOS 1.424 1.539 0.115
BrCl Bromine monochloride rClBr 2.136 2.368 0.232
BrF Bromine monofluoride rFBr 1.759 1.864 0.105
PF2 Phosphorus difluoride rPF 1.579 1.709 0.129
CrH Chromium hydride rHCr 1.655 1.805 0.150
NH2SH Thiohydroxylamine rNS 1.719 1.821 0.102
PO Phosphorus monoxide rPO 1.476 1.581 0.105
SiBr Silicon monobromide rSiBr 2.209 2.375 0.166
SiBr+ Silicon monobromide cation rSiBr 2.095 2.233 0.138
SiF3 Silicon trifluoride radical rFSi 1.565 1.676 0.111
SCl sulfur monochloride rSCl 1.975 2.168 0.193
FSN Thiazyl fluoride rFS 1.643 1.810 0.167
BH3PH3 borane phosphine rBP 1.937 2.075 0.138
S4 Sulfur tetramer rSS 2.155 2.372 0.217
S4 Sulfur tetramer rSS 1.898 2.109 0.211
CaS Calcium sulfide rSCa 2.318 2.709 0.391
OPCl Phosphorus oxychloride rPCl 2.059 2.273 0.215
OPCl Phosphorus oxychloride rPO 1.462 1.568 0.106
AlBr Aluminum monobromide rAlBr 2.295 2.427 0.132
S2 Sulfur diatomic rSS 1.889 2.083 0.194
S2N2 Disulfur dinitride rNS 1.642 1.807 0.165
ClOF3 Chlorine trifluoride oxide rFCl 1.603 1.855 0.252
ClOF3 Chlorine trifluoride oxide rOCl 1.405 1.644 0.239
ClOF3 Chlorine trifluoride oxide rFCl 1.713 1.898 0.185
HOSH hydrogen thioperoxide rSO 1.662 1.818 0.157
SFCl Sulfur chloride fluoride rSCl 1.994 2.248 0.254
SFCl Sulfur chloride fluoride rFS 1.606 1.749 0.143
CaC Calcium monocarbide rCCa 2.302 2.489 0.188
82 molecules.