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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/aug-cc-pVDZ

Species Name Bond type Bond Length (Å)
Experimental Calculated Difference
C2H4F2 1,2-difluoroethane rCH 1.093 1.519 0.426
Be2 Beryllium diatomic rBeBe 2.460 2.056 -0.404
GaP Gallium monophosphide rPGa 2.450 2.222 -0.228
GaP Gallium monophosphide rPGa 2.450 2.222 -0.228
GaP Gallium monophosphide rPGa 2.450 2.222 -0.228
GaP Gallium monophosphide rPGa 2.450 2.222 -0.228
AlP Aluminum monophosphide rAlP 2.400 2.212 -0.188
AlP Aluminum monophosphide rAlP 2.400 2.212 -0.188
AlP Aluminum monophosphide rAlP 2.400 2.212 -0.188
AlP Aluminum monophosphide rAlP 2.400 2.212 -0.188
AlP Aluminum monophosphide rAlP 2.400 2.212 -0.188
AlP Aluminum monophosphide rAlP 2.400 2.212 -0.188
Ar2+ Argon diatomic cation rArAr 2.320 2.473 0.153
N2 Nitrogen diatomic rNN 1.098 1.242 0.144
N2 Nitrogen diatomic rNN 1.098 1.242 0.144
GaP Gallium monophosphide rPGa 2.110 2.222 0.112
GaP Gallium monophosphide rPGa 2.110 2.222 0.112
GaP Gallium monophosphide rPGa 2.110 2.222 0.112
GaP Gallium monophosphide rPGa 2.110 2.222 0.112
C2 Carbon diatomic rCC 1.243 1.341 0.098
C2 Carbon diatomic rCC 1.243 1.341 0.098
CO Carbon monoxide rCO 1.128 1.223 0.094
SO Sulfur monoxide rSO 1.481 1.571 0.089
SO Sulfur monoxide rSO 1.481 1.571 0.089
SO Sulfur monoxide rSO 1.481 1.560 0.079
SO Sulfur monoxide rSO 1.481 1.560 0.079
SO Sulfur monoxide rSO 1.481 1.560 0.079
SO Sulfur monoxide rSO 1.481 1.560 0.079
SO2 Sulfur dioxide rSO 1.432 1.506 0.073
OClO Chlorine dioxide rClO 1.470 1.542 0.072
SO Sulfur monoxide rOS 1.500 1.571 0.070
SO Sulfur monoxide rOS 1.500 1.571 0.070
SiF3 Silicon trifluoride radical rFSi 1.565 1.633 0.068
SiF silicon monofluoride rSiF 1.604 1.672 0.068
PF2 Phosphorus difluoride rPF 1.579 1.647 0.068
BrO+ Bromine monoxide cation rOBr 1.635 1.569 -0.066
SiBr Silicon monobromide rSiBr 2.209 2.275 0.066
AlC Aluminum carbide rCAl 1.955 2.020 0.065
PO Phosphorus monoxide rPO 1.476 1.540 0.064
PO Phosphorus monoxide rPO 1.476 1.540 0.064
O2+ diatomic oxygen cation rOO 1.116 1.180 0.064
S2 Sulfur diatomic rSS 1.889 1.953 0.063
NaS Sodium sulfide rNaS 2.489 2.552 0.063
HeH+ Helium hydride cation rHHe 0.790 0.851 0.062
LiS Lithium monosulfide rLiS 2.150 2.211 0.061
SiCl Clorosilylidyne rSiCl 2.061 2.122 0.061
SO Sulfur monoxide rOS 1.500 1.560 0.060
SO Sulfur monoxide rOS 1.500 1.560 0.060
SO Sulfur monoxide rOS 1.500 1.560 0.060
SO Sulfur monoxide rOS 1.500 1.560 0.060
SiP Silicon monophosphide rSiP 2.078 2.018 -0.059
SF Monosulfur monofluoride rSF 1.599 1.656 0.057
GaCl Gallium monochloride rClGa 2.202 2.258 0.056
O2 Oxygen diatomic rOO 1.208 1.264 0.056
O2- oxygen diatomic anion rOO 1.350 1.403 0.053
HN3 hydrogen azide rNH 0.975 1.027 0.052
56 molecules.