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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 ROMP2/cc-pVDZ

Species Name Bond type Bond Length (Å)
Experimental Calculated Difference
C2H4F2 1,2-difluoroethane rCH 1.093 1.518 0.425
Be2 Beryllium diatomic rBeBe 2.460 2.053 -0.407
GaP Gallium monophosphide rPGa 2.450 2.212 -0.238
GaP Gallium monophosphide rPGa 2.450 2.212 -0.238
GaP Gallium monophosphide rPGa 2.450 2.212 -0.238
GaP Gallium monophosphide rPGa 2.450 2.212 -0.238
AlP Aluminum monophosphide rAlP 2.400 2.199 -0.201
AlP Aluminum monophosphide rAlP 2.400 2.199 -0.201
AlP Aluminum monophosphide rAlP 2.400 2.199 -0.201
AlP Aluminum monophosphide rAlP 2.400 2.199 -0.201
AlP Aluminum monophosphide rAlP 2.400 2.199 -0.201
AlP Aluminum monophosphide rAlP 2.400 2.199 -0.201
Ar2+ Argon diatomic cation rArAr 2.320 2.503 0.183
N2 Nitrogen diatomic rNN 1.098 1.240 0.142
N2 Nitrogen diatomic rNN 1.098 1.240 0.142
GaP Gallium monophosphide rPGa 2.110 2.212 0.102
GaP Gallium monophosphide rPGa 2.110 2.212 0.102
GaP Gallium monophosphide rPGa 2.110 2.212 0.102
GaP Gallium monophosphide rPGa 2.110 2.212 0.102
C2 Carbon diatomic rCC 1.243 1.340 0.097
C2 Carbon diatomic rCC 1.243 1.340 0.097
CO Carbon monoxide rCO 1.128 1.221 0.093
SO Sulfur monoxide rSO 1.481 1.568 0.087
SO Sulfur monoxide rSO 1.481 1.568 0.087
SO Sulfur monoxide rSO 1.481 1.563 0.082
SO Sulfur monoxide rSO 1.481 1.563 0.082
SO Sulfur monoxide rSO 1.481 1.563 0.082
SO Sulfur monoxide rSO 1.481 1.563 0.082
SeO Selenium monoxide rSeO 1.639 1.714 0.075
SiF3 Silicon trifluoride radical rFSi 1.565 1.635 0.070
SO Sulfur monoxide rOS 1.500 1.568 0.068
SO Sulfur monoxide rOS 1.500 1.568 0.068
SiP Silicon monophosphide rSiP 2.078 2.013 -0.064
SO Sulfur monoxide rOS 1.500 1.563 0.063
SO Sulfur monoxide rOS 1.500 1.563 0.063
SO Sulfur monoxide rOS 1.500 1.563 0.063
SO Sulfur monoxide rOS 1.500 1.563 0.063
BrO Bromine monoxide rOBr 1.718 1.780 0.063
BrO Bromine monoxide rOBr 1.718 1.780 0.062
OClO Chlorine dioxide rClO 1.470 1.532 0.062
BrO+ Bromine monoxide cation rOBr 1.635 1.573 -0.062
SiF silicon monofluoride rSiF 1.604 1.666 0.062
SO2 Sulfur dioxide rSO 1.432 1.494 0.062
AlP Aluminum monophosphide rAlP 2.260 2.199 -0.061
AlP Aluminum monophosphide rAlP 2.260 2.199 -0.061
AlP Aluminum monophosphide rAlP 2.260 2.199 -0.061
AlP Aluminum monophosphide rAlP 2.260 2.199 -0.061
AlP Aluminum monophosphide rAlP 2.260 2.199 -0.061
AlP Aluminum monophosphide rAlP 2.260 2.199 -0.061
O2+ diatomic oxygen cation rOO 1.116 1.176 0.059
PF2 Phosphorus difluoride rPF 1.579 1.636 0.057
PO Phosphorus monoxide rPO 1.476 1.532 0.056
PO Phosphorus monoxide rPO 1.476 1.532 0.056
LiS Lithium monosulfide rLiS 2.150 2.205 0.056
HeH+ Helium hydride cation rHHe 0.790 0.845 0.055
HCO Formyl radical rCH 1.080 1.134 0.054
S2 Sulfur diatomic rSS 1.889 1.943 0.054
HN3 hydrogen azide rNH 0.975 1.028 0.053
AlC Aluminum carbide rCAl 1.955 2.006 0.051
CrH Chromium hydride rHCr 1.655 1.604 -0.051
SiBr Silicon monobromide rSiBr 2.209 2.260 0.051
61 molecules.