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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 ROHF/Def2TZVPP

Species Name Bond type Bond Length (Å)
Experimental Calculated Difference
CH3CH2SH ethanethiol rCH 1.095 1.821 0.726
CaC Calcium monocarbide rCCa 2.302 2.905 0.604
CH3CH2SH ethanethiol rCH 1.089 1.522 0.433
CH3CH2SH ethanethiol rCH 1.092 1.522 0.430
CH3CH2SH ethanethiol rCS 1.820 1.522 -0.298
CH3CH2SH ethanethiol rCC 1.528 1.821 0.293
C2H2+ acetylene cation rCH 1.077 1.311 0.234
SiP Silicon monophosphide rSiP 2.078 1.959 -0.119
F2+ flourine diatomic cation rFF 1.322 1.211 -0.111
CaBr Calcium monobromide rCaBr 2.594 2.676 0.083
N2 Nitrogen diatomic rNN 1.098 1.180 0.082
N2 Nitrogen diatomic rNN 1.098 1.180 0.082
KH Potassium hydride rKH 2.243 2.322 0.080
CrH Chromium hydride rHCr 1.655 1.729 0.074
SO Sulfur monoxide rOS 1.500 1.434 -0.066
SO Sulfur monoxide rOS 1.500 1.434 -0.066
HCF Fluoromethylene rCH 1.138 1.074 -0.064
TeO Tellurium monoxide rOTe 1.825 1.761 -0.064
HNO Nitrosyl hydride rNH 1.090 1.030 -0.060
SO Sulfur monoxide rOS 1.500 1.442 -0.058
SO Sulfur monoxide rOS 1.500 1.442 -0.058
ZnCN Zinc monocyanide rCZn 1.950 2.005 0.055
SeO Selenium monoxide rSeO 1.639 1.585 -0.055
SO+ sulfur monoxide cation rOS 1.424 1.373 -0.051
24 molecules.