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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/aug-cc-pVTZ

Species Name Bond type Bond Length (Å)
Experimental Calculated Difference
CH3CH2SH ethanethiol rCH 1.095 1.826 0.731
HSSSH trisulfane rHS 1.344 2.070 0.726
HSSSH trisulfane rHS 1.344 2.070 0.726
S4 Sulfur tetramer rSS 2.155 2.863 0.708
CH3CH2SH ethanethiol rCH 1.089 1.518 0.429
CH3CH2SH ethanethiol rCH 1.092 1.518 0.426
C2H4F2 1,2-difluoroethane rCH 1.093 1.509 0.416
C2H4F2 1,2-difluoroethane rCH 1.093 1.498 0.405
S4 Sulfur tetramer rSS 2.155 2.555 0.400
CH2CHCH2F Allyl Fluoride rHC 1.130 1.490 0.360
GaP Gallium monophosphide rPGa 2.450 2.096 -0.354
GaP Gallium monophosphide rPGa 2.450 2.096 -0.354
GaP Gallium monophosphide rPGa 2.450 2.096 -0.354
GaP Gallium monophosphide rPGa 2.450 2.096 -0.354
CH3CH2SH ethanethiol rCS 1.820 1.518 -0.302
AlP Aluminum monophosphide rAlP 2.400 2.102 -0.298
AlP Aluminum monophosphide rAlP 2.400 2.102 -0.298
AlP Aluminum monophosphide rAlP 2.400 2.102 -0.298
CH3CH2SH ethanethiol rCC 1.528 1.826 0.298
Si2H2 disilyne rSiSi 2.215 1.978 -0.237
C2H2+ acetylene cation rCH 1.077 1.310 0.233
GaP Gallium monophosphide rPGa 2.450 2.219 -0.231
GaP Gallium monophosphide rPGa 2.450 2.219 -0.231
GaP Gallium monophosphide rPGa 2.450 2.219 -0.231
GaP Gallium monophosphide rPGa 2.450 2.219 -0.231
S4 Sulfur tetramer rSS 1.898 2.124 0.226
Si2H2 disilyne rSiH 1.668 1.454 -0.214
ONNO NO dimer rNN 2.236 2.036 -0.201
Si2H2 disilyne rSiH 1.668 1.487 -0.181
AlP Aluminum monophosphide rAlP 2.400 2.223 -0.177
AlP Aluminum monophosphide rAlP 2.400 2.223 -0.177
AlP Aluminum monophosphide rAlP 2.400 2.223 -0.177
AlP Aluminum monophosphide rAlP 2.400 2.223 -0.177
AlP Aluminum monophosphide rAlP 2.400 2.223 -0.177
AlP Aluminum monophosphide rAlP 2.400 2.223 -0.177
S3 Sulfur trimer rSS 1.917 2.092 0.175
AlP Aluminum monophosphide rAlP 2.260 2.102 -0.158
AlP Aluminum monophosphide rAlP 2.260 2.102 -0.158
AlP Aluminum monophosphide rAlP 2.260 2.102 -0.158
GaP Gallium monophosphide rPGa 2.250 2.096 -0.154
GaP Gallium monophosphide rPGa 2.250 2.096 -0.154
GaP Gallium monophosphide rPGa 2.250 2.096 -0.154
GaP Gallium monophosphide rPGa 2.250 2.096 -0.154
GaP Gallium monophosphide rPGa 2.240 2.096 -0.144
GaP Gallium monophosphide rPGa 2.240 2.096 -0.144
GaP Gallium monophosphide rPGa 2.240 2.096 -0.144
GaP Gallium monophosphide rPGa 2.240 2.096 -0.144
AlP Aluminum monophosphide rAlP 2.220 2.102 -0.118
AlP Aluminum monophosphide rAlP 2.220 2.102 -0.118
AlP Aluminum monophosphide rAlP 2.220 2.102 -0.118
N2 Nitrogen diatomic rNN 1.098 1.214 0.117
N2 Nitrogen diatomic rNN 1.098 1.214 0.117
N2 Nitrogen diatomic rNN 1.213 1.100 -0.112
N2 Nitrogen diatomic rNN 1.213 1.100 -0.112
N2 Nitrogen diatomic rNN 1.213 1.100 -0.112
N2 Nitrogen diatomic rNN 1.213 1.100 -0.112
GaP Gallium monophosphide rPGa 2.110 2.219 0.109
GaP Gallium monophosphide rPGa 2.110 2.219 0.109
GaP Gallium monophosphide rPGa 2.110 2.219 0.109
GaP Gallium monophosphide rPGa 2.110 2.219 0.109
Si2H2 disilyne rSiSi 2.215 2.111 -0.105
Si2H2 disilyne rSiSi 2.215 2.114 -0.102
Ar2+ Argon diatomic cation rArAr 2.320 2.417 0.097
GaCl3 Gallium trichloride rClGa 2.180 2.106 -0.075
B4H10 Tetraborane(10) rHB 1.484 1.410 -0.074
B2 Boron diatomic rBB 1.590 1.518 -0.072
C2 Carbon diatomic rCC 1.243 1.313 0.071
CuH Copper monohydride rCuH 1.463 1.398 -0.065
B4H10 Tetraborane(10) rHB 1.315 1.252 -0.063
HCF Fluoromethylene rCH 1.138 1.080 -0.058
CH3CHNOH Acetaldoxime rCC 1.550 1.492 -0.058
C2H2+ acetylene cation rCC 1.253 1.309 0.056
Si2H2 disilyne rSiH 1.668 1.723 0.055
Ne2+ Neon diatomic cation rNeNe 1.765 1.714 -0.051
74 molecules.