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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 QCISD(T)=FULL/cc-pVDZ

Species Name Bond type Bond Length (Å)
Experimental Calculated Difference
S4 Sulfur tetramer rSS 2.155 2.932 0.777
HSSSH trisulfane rHS 1.344 2.107 0.764
HSSSH trisulfane rHS 1.344 2.107 0.764
CH3CH2SH ethanethiol rCH 1.095 1.844 0.749
CH3CH2SH ethanethiol rCH 1.095 1.840 0.745
CH3SO2NH2 methanesulfonamide rCN 1.207 1.713 0.506
S4 Sulfur tetramer rSS 2.155 2.659 0.504
CH3CH2SH ethanethiol rCH 1.089 1.533 0.444
CH3CH2SH ethanethiol rCH 1.089 1.531 0.442
CH3CH2SH ethanethiol rCH 1.092 1.533 0.441
CH3CH2SH ethanethiol rCH 1.092 1.531 0.439
C2H4F2 1,2-difluoroethane rCH 1.093 1.522 0.429
C4H10O Methyl propyl ether rCC 1.530 1.107 -0.423
C2H4F2 1,2-difluoroethane rCH 1.093 1.513 0.420
CH2CHCH2F Allyl Fluoride rHC 1.130 1.507 0.377
Ar2 Argon diatomic rArAr 3.758 4.131 0.373
CH3CH2SH ethanethiol rCC 1.528 1.844 0.316
C4H10O Methyl propyl ether rCH 1.099 1.413 0.314
CH3CH2SH ethanethiol rCC 1.528 1.840 0.312
GaP Gallium monophosphide rPGa 2.450 2.140 -0.310
GaP Gallium monophosphide rPGa 2.450 2.140 -0.310
GaP Gallium monophosphide rPGa 2.450 2.140 -0.310
GaP Gallium monophosphide rPGa 2.450 2.140 -0.310
CH3CH2SH ethanethiol rCS 1.820 1.531 -0.289
CH3CH2SH ethanethiol rCS 1.820 1.533 -0.287
S4 Sulfur tetramer rSS 1.898 2.171 0.273
AlP Aluminum monophosphide rAlP 2.400 2.144 -0.256
AlP Aluminum monophosphide rAlP 2.400 2.144 -0.256
AlP Aluminum monophosphide rAlP 2.400 2.144 -0.256
C2H2+ acetylene cation rCH 1.077 1.329 0.252
S3 Sulfur trimer rSS 1.917 2.134 0.217
ClF3 Chlorine trifluoride rFCl 1.597 1.810 0.213
ClF3 Chlorine trifluoride rFCl 1.597 1.810 0.213
Si2H2 disilyne rSiSi 2.215 2.016 -0.200
Si2H2 disilyne rSiH 1.668 1.472 -0.196
Ar2+ Argon diatomic cation rArAr 2.320 2.505 0.185
GaP Gallium monophosphide rPGa 2.450 2.274 -0.176
GaP Gallium monophosphide rPGa 2.450 2.274 -0.176
GaP Gallium monophosphide rPGa 2.450 2.274 -0.176
GaP Gallium monophosphide rPGa 2.450 2.274 -0.176
Si2H2 disilyne rSiH 1.668 1.500 -0.168
GaP Gallium monophosphide rPGa 2.110 2.274 0.164
GaP Gallium monophosphide rPGa 2.110 2.274 0.164
GaP Gallium monophosphide rPGa 2.110 2.274 0.164
GaP Gallium monophosphide rPGa 2.110 2.274 0.164
ClOOCl Dichlorine dioxide rOCl 1.704 1.845 0.140
AlP Aluminum monophosphide rAlP 2.400 2.263 -0.137
AlP Aluminum monophosphide rAlP 2.400 2.263 -0.137
AlP Aluminum monophosphide rAlP 2.400 2.263 -0.137
AlP Aluminum monophosphide rAlP 2.400 2.263 -0.137
AlP Aluminum monophosphide rAlP 2.400 2.263 -0.137
AlP Aluminum monophosphide rAlP 2.400 2.263 -0.137
N2 Nitrogen diatomic rNN 1.098 1.232 0.134
N2 Nitrogen diatomic rNN 1.098 1.232 0.134
Na2 Sodium diatomic rNaNa 3.079 3.212 0.133
AlP Aluminum monophosphide rAlP 2.260 2.144 -0.116
AlP Aluminum monophosphide rAlP 2.260 2.144 -0.116
AlP Aluminum monophosphide rAlP 2.260 2.144 -0.116
ClOF3 Chlorine trifluoride oxide rFCl 1.603 1.718 0.115
ClF3 Chlorine trifluoride rFCl 1.697 1.810 0.113
ClF3 Chlorine trifluoride rFCl 1.697 1.810 0.113
GaP Gallium monophosphide rPGa 2.250 2.140 -0.110
GaP Gallium monophosphide rPGa 2.250 2.140 -0.110
GaP Gallium monophosphide rPGa 2.250 2.140 -0.110
GaP Gallium monophosphide rPGa 2.250 2.140 -0.110
GaP Gallium monophosphide rPGa 2.240 2.140 -0.100
GaP Gallium monophosphide rPGa 2.240 2.140 -0.100
GaP Gallium monophosphide rPGa 2.240 2.140 -0.100
GaP Gallium monophosphide rPGa 2.240 2.140 -0.100
C2 Carbon diatomic rCC 1.243 1.341 0.098
N2 Nitrogen diatomic rNN 1.213 1.119 -0.094
N2 Nitrogen diatomic rNN 1.213 1.119 -0.094
N2 Nitrogen diatomic rNN 1.213 1.119 -0.094
N2 Nitrogen diatomic rNN 1.213 1.119 -0.094
FSN Thiazyl fluoride rFS 1.643 1.731 0.088
ClOOCl Dichlorine dioxide rOO 1.426 1.339 -0.087
C2H2+ acetylene cation rCC 1.253 1.338 0.085
OClO Chlorine dioxide rClO 1.470 1.554 0.084
CaS Calcium sulfide rSCa 2.318 2.398 0.080
ClF3 Chlorine trifluoride rFCl 1.597 1.676 0.079
ClF3 Chlorine trifluoride rFCl 1.597 1.676 0.079
BrO Bromine monoxide rOBr 1.718 1.797 0.079
AlP Aluminum monophosphide rAlP 2.220 2.144 -0.076
AlP Aluminum monophosphide rAlP 2.220 2.144 -0.076
AlP Aluminum monophosphide rAlP 2.220 2.144 -0.076
SiF+ silicon monofluoride cation rFSi 1.527 1.600 0.074
C4H8O2 Ethyl acetate rCO 1.448 1.520 0.072
SO Sulfur monoxide rSO 1.481 1.553 0.072
SO Sulfur monoxide rSO 1.481 1.553 0.072
Si2H2 disilyne rSiSi 2.215 2.145 -0.071
B2 Boron diatomic rBB 1.590 1.660 0.070
SiF3 Silicon trifluoride radical rFSi 1.565 1.635 0.070
BrO+ Bromine monoxide cation rOBr 1.635 1.703 0.068
Si2H2 disilyne rSiH 1.668 1.735 0.067
Cl2 Chlorine diatomic rClCl 1.988 2.054 0.066
SSO Disulfur monoxide rSS 1.884 1.950 0.066
NaLi lithium sodium rLiNa 2.889 2.954 0.065
SiF silicon monofluoride rSiF 1.604 1.670 0.065
NH2SH Thiohydroxylamine rNS 1.705 1.770 0.065
NH2SH Thiohydroxylamine rNS 1.705 1.770 0.065
SCl sulfur monochloride rSCl 1.975 2.039 0.064
SOF4 Sulfur tetrafluoride oxide rFS 1.539 1.603 0.064
CH3SSH Hydrogen methyl disulfide rSS 2.038 2.102 0.064
ClOF3 Chlorine trifluoride oxide rOCl 1.405 1.468 0.063
SiH2F2 difluorosilane rSiF 1.576 1.638 0.062
SiHF3 trifluorosilane rSiF 1.563 1.625 0.062
BrCl Bromine monochloride rClBr 2.136 2.198 0.062
ClF3 Chlorine trifluoride rFCl 1.697 1.759 0.062
ClF3 Chlorine trifluoride rFCl 1.697 1.759 0.062
SFCl Sulfur chloride fluoride rSCl 1.994 2.056 0.062
SF4 Sulfur tetrafluoride rSF 1.545 1.606 0.061
SiBr Silicon monobromide rSiBr 2.209 2.270 0.061
CFCl chlorofluoromethylene rCCl 1.714 1.775 0.061
LiCl lithium chloride rLiCl 2.021 2.081 0.061
SF2 sulfur difluoride rSF 1.587 1.648 0.061
PF2 Phosphorus difluoride rPF 1.579 1.640 0.060
Br2 Bromine diatomic rBrBr 2.281 2.341 0.060
HCO Formyl radical rCH 1.080 1.139 0.059
SF Monosulfur monofluoride rSF 1.599 1.659 0.059
LiBr Lithium Bromide rLiBr 2.170 2.229 0.059
SiH3F monofluorosilane rSiF 1.595 1.653 0.058
BrF Bromine monofluoride rFBr 1.759 1.817 0.058
SSO Disulfur monoxide rSO 1.456 1.514 0.058
ClNO Nitrosyl chloride rNCl 1.975 2.033 0.058
S3 Sulfur trimer rSS 1.917 1.975 0.058
AlF Aluminum monofluoride rAlF 1.654 1.712 0.057
ClOF3 Chlorine trifluoride oxide rFCl 1.713 1.770 0.057
NCl3 nitrogen trichloride rNCl 1.754 1.811 0.057
SFCl Sulfur chloride fluoride rFS 1.606 1.663 0.057
LiS Lithium monosulfide rLiS 2.150 2.206 0.056
SO2 Sulfur dioxide rSO 1.432 1.488 0.056
ClO Monochlorine monoxide rClO 1.596 1.652 0.056
Si2H2 disilyne rSiSi 2.215 2.160 -0.055
HSSSH trisulfane rSS 2.053 2.107 0.054
HSSSH trisulfane rSS 2.053 2.107 0.054
HN3 hydrogen azide rNH 0.975 1.029 0.054
SO Sulfur monoxide rSO 1.481 1.535 0.054
SO Sulfur monoxide rSO 1.481 1.535 0.054
HCNO fulminic acid rCH 1.027 1.081 0.054
HSSSH trisulfane rSS 2.054 2.107 0.053
HSSSH trisulfane rSS 2.054 2.107 0.053
SO Sulfur monoxide rOS 1.500 1.553 0.053
SO Sulfur monoxide rOS 1.500 1.553 0.053
H2S2 Disulfane rSS 2.056 2.109 0.053
C2H6O2S Dimethyl sulfone rSO 1.431 1.483 0.052
S2N2 Disulfur dinitride rNS 1.642 1.694 0.052
HOCl hypochlorous acid rClO 1.697 1.749 0.052
SO3 Sulfur trioxide rSO 1.418 1.469 0.051
B4H10 Tetraborane(10) rHB 1.484 1.433 -0.051
GaAs Gallium arsenide rGaAs 2.530 2.581 0.051
NH2SH Thiohydroxylamine rNS 1.719 1.770 0.051
NH2SH Thiohydroxylamine rNS 1.719 1.770 0.051
SiCl Clorosilylidyne rSiCl 2.061 2.112 0.051
153 molecules.