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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 LSDA/TZVP

Species Name Bond type Bond Length (Å)
Experimental Calculated Difference
HSSSH trisulfane rHS 1.344 2.076 0.732
HSSSH trisulfane rHS 1.344 2.076 0.732
HSSSH trisulfane rHS 1.344 2.075 0.732
HSSSH trisulfane rHS 1.344 2.075 0.732
CH3CH2SH ethanethiol rCH 1.095 1.818 0.723
Mg2 Magnesium diatomic rMgMg 3.891 3.411 -0.480
CH3SO2NH2 methanesulfonamide rCN 1.207 1.682 0.475
Be2 Beryllium diatomic rBeBe 2.460 1.997 -0.463
C4H10O Methyl propyl ether rCC 1.530 1.102 -0.428
CH3CH2SH ethanethiol rCH 1.089 1.501 0.412
CH3CH2SH ethanethiol rCH 1.092 1.501 0.409
Ar2 Argon diatomic rArAr 3.758 3.407 -0.351
AlP Aluminum monophosphide rAlP 2.400 2.070 -0.330
AlP Aluminum monophosphide rAlP 2.400 2.070 -0.330
AlP Aluminum monophosphide rAlP 2.400 2.070 -0.330
GaP Gallium monophosphide rPGa 2.110 2.437 0.327
GaP Gallium monophosphide rPGa 2.110 2.437 0.327
GaP Gallium monophosphide rPGa 2.110 2.437 0.327
GaP Gallium monophosphide rPGa 2.110 2.437 0.327
CH3CH2SH ethanethiol rCS 1.820 1.501 -0.319
C4H10O Methyl propyl ether rCH 1.099 1.392 0.293
CH3CH2SH ethanethiol rCC 1.528 1.818 0.290
GaP Gallium monophosphide rPGa 2.450 2.208 -0.242
GaP Gallium monophosphide rPGa 2.450 2.208 -0.242
GaP Gallium monophosphide rPGa 2.450 2.208 -0.242
GaP Gallium monophosphide rPGa 2.450 2.208 -0.242
CaS Calcium sulfide rSCa 2.318 2.537 0.220
Al2Cl6 Aluminum, di-μ-chlorotetrachlorodi- rAlCl 2.040 2.259 0.219
Ar2+ Argon diatomic cation rArAr 2.320 2.531 0.211
GaP Gallium monophosphide rPGa 2.240 2.437 0.197
GaP Gallium monophosphide rPGa 2.240 2.437 0.197
GaP Gallium monophosphide rPGa 2.240 2.437 0.197
GaP Gallium monophosphide rPGa 2.240 2.437 0.197
AlP Aluminum monophosphide rAlP 2.400 2.204 -0.196
AlP Aluminum monophosphide rAlP 2.400 2.204 -0.196
AlP Aluminum monophosphide rAlP 2.400 2.204 -0.196
AlP Aluminum monophosphide rAlP 2.400 2.204 -0.196
AlP Aluminum monophosphide rAlP 2.400 2.204 -0.196
AlP Aluminum monophosphide rAlP 2.400 2.204 -0.196
AlP Aluminum monophosphide rAlP 2.260 2.070 -0.190
AlP Aluminum monophosphide rAlP 2.260 2.070 -0.190
AlP Aluminum monophosphide rAlP 2.260 2.070 -0.190
GaP Gallium monophosphide rPGa 2.250 2.437 0.187
GaP Gallium monophosphide rPGa 2.250 2.437 0.187
GaP Gallium monophosphide rPGa 2.250 2.437 0.187
GaP Gallium monophosphide rPGa 2.250 2.437 0.187
ClOOCl Dichlorine dioxide rOCl 1.704 1.886 0.181
ClOOCl Dichlorine dioxide rOO 1.426 1.246 -0.180
ClF3 Chlorine trifluoride rFCl 1.597 1.765 0.169
ClF3 Chlorine trifluoride rFCl 1.597 1.765 0.169
CaH Calcium monohydride rCaH 2.003 2.168 0.166
Al2Cl6 Aluminum, di-μ-chlorotetrachlorodi- rAlCl 2.240 2.075 -0.165
Be2 Beryllium diatomic rBeBe 2.460 2.300 -0.160
NaK Sodium Potassium rNaK 3.589 3.431 -0.158
AlP Aluminum monophosphide rAlP 2.220 2.070 -0.150
AlP Aluminum monophosphide rAlP 2.220 2.070 -0.150
AlP Aluminum monophosphide rAlP 2.220 2.070 -0.150
N2 Nitrogen diatomic rNN 1.213 1.096 -0.116
N2 Nitrogen diatomic rNN 1.213 1.096 -0.116
N2 Nitrogen diatomic rNN 1.213 1.096 -0.116
N2 Nitrogen diatomic rNN 1.213 1.096 -0.116
GaP Gallium monophosphide rPGa 2.110 2.208 0.098
GaP Gallium monophosphide rPGa 2.110 2.208 0.098
GaP Gallium monophosphide rPGa 2.110 2.208 0.098
GaP Gallium monophosphide rPGa 2.110 2.208 0.098
Ne2+ Neon diatomic cation rNeNe 1.765 1.856 0.091
B4H10 Tetraborane(10) rHB 1.484 1.395 -0.089
ClOF3 Chlorine trifluoride oxide rFCl 1.603 1.691 0.088
SeO3 selenium trioxide rSeO 1.688 1.605 -0.083
GaCl3 Gallium trichloride rClGa 2.180 2.101 -0.079
SiC silicon monocarbide rCSi 1.722 1.644 -0.078
He2+ helium diatomic cation rHeHe 1.081 1.157 0.077
CO Carbon monoxide rCO 1.128 1.203 0.074
TiH Titanium monohydride rHTi 1.785 1.711 -0.074
B2 Boron diatomic rBB 1.590 1.521 -0.069
FSN Thiazyl fluoride rFS 1.643 1.712 0.069
ClF3 Chlorine trifluoride rFCl 1.697 1.765 0.069
ClF3 Chlorine trifluoride rFCl 1.697 1.765 0.069
HClO4 perchloric acid rOCl 1.641 1.708 0.067
K2 Potassium diatomic rKK 3.905 3.839 -0.066
Na2 Sodium diatomic rNaNa 3.079 3.015 -0.064
SO2F2 Sulfuryl fluoride rFS 1.530 1.593 0.063
HClO4 perchloric acid rOCl 1.404 1.466 0.062
KH Potassium hydride rKH 2.243 2.303 0.061
BH3CO Borane carbonyl rBC 1.534 1.474 -0.060
C2 Carbon diatomic rCC 1.243 1.302 0.059
GaO Gallium monoxide rOGa 1.743 1.684 -0.059
BN boron nitride rBN 1.325 1.266 -0.059
C4F6 perfluorobutadiene rCC 1.488 1.430 -0.058
ClOF3 Chlorine trifluoride oxide rFCl 1.713 1.771 0.058
AlP Aluminum monophosphide rAlP 2.260 2.204 -0.056
AlP Aluminum monophosphide rAlP 2.260 2.204 -0.056
AlP Aluminum monophosphide rAlP 2.260 2.204 -0.056
AlP Aluminum monophosphide rAlP 2.260 2.204 -0.056
AlP Aluminum monophosphide rAlP 2.260 2.204 -0.056
AlP Aluminum monophosphide rAlP 2.260 2.204 -0.056
C4F6 perfluorobutadiene rCC 1.488 1.432 -0.056
F2SO Thionyl Fluoride rFS 1.585 1.641 0.055
ClF3 Chlorine trifluoride rFCl 1.597 1.652 0.055
ClF3 Chlorine trifluoride rFCl 1.597 1.652 0.055
C3H5 Allyl radical rCC 1.428 1.373 -0.055
C3H5 Allyl radical rCC 1.428 1.373 -0.055
SOF4 Sulfur tetrafluoride oxide rFS 1.539 1.593 0.054
KOH Potassium hydroxide rOK 2.212 2.265 0.053
B4H10 Tetraborane(10) rBB 1.856 1.803 -0.053
SF5Cl sulfur chloropentafluoride rSCl 2.030 2.082 0.052
KOH Potassium hydroxide rOH 0.912 0.963 0.051
N2H4 Hydrazine rNN 1.446 1.395 -0.051
108 molecules.