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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 MP4=FULL/daug-cc-pVTZ

Species Name Bond type Bond Length (Å)
Experimental Calculated Difference
CH3CH2SH ethanethiol rCH 1.095 1.825 0.730
S4 Sulfur tetramer rSS 2.155 2.854 0.699
S4 Sulfur tetramer rSS 2.155 2.605 0.450
S4 Sulfur tetramer rSS 2.155 2.603 0.448
CH3CH2SH ethanethiol rCH 1.089 1.519 0.430
CH3CH2SH ethanethiol rCH 1.092 1.519 0.427
C2H4F2 1,2-difluoroethane rCH 1.093 1.509 0.416
CH3CH2SH ethanethiol rCS 1.820 1.519 -0.301
CH3CH2SH ethanethiol rCC 1.528 1.825 0.297
C2H2+ acetylene cation rCH 1.077 1.308 0.231
S4 Sulfur tetramer rSS 1.898 2.121 0.223
N2 Nitrogen diatomic rNN 1.213 1.109 -0.103
N2 Nitrogen diatomic rNN 1.213 1.109 -0.103
SiP Silicon monophosphide rSiP 2.078 2.006 -0.072
C2H2+ acetylene cation rCC 1.253 1.318 0.065
HCF Fluoromethylene rCH 1.138 1.081 -0.057
16 molecules.