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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 M06-2X/cc-pCVTZ

Species Name Bond type Bond Length (Å)
Experimental Calculated Difference
CH3CH2SH ethanethiol rCH 1.095 1.821 0.726
CH3CH2SH ethanethiol rCH 1.095 1.818 0.723
S4 Sulfur tetramer rSS 2.155 2.839 0.684
CH3CH2SH ethanethiol rCH 1.089 1.521 0.432
CH3CH2SH ethanethiol rCH 1.089 1.519 0.430
CH3CH2SH ethanethiol rCH 1.092 1.521 0.429
CH3CH2SH ethanethiol rCH 1.092 1.519 0.427
S4 Sulfur tetramer rSS 2.155 2.478 0.323
CH3CH2SH ethanethiol rCS 1.820 1.519 -0.301
CH3CH2SH ethanethiol rCS 1.820 1.521 -0.299
CH3CH2SH ethanethiol rCC 1.528 1.821 0.293
CH3CH2SH ethanethiol rCC 1.528 1.818 0.290
S4 Sulfur tetramer rSS 1.898 2.102 0.204
N2 Nitrogen diatomic rNN 1.213 1.086 -0.127
N2 Nitrogen diatomic rNN 1.213 1.086 -0.127
Na2 Sodium diatomic rNaNa 3.079 2.956 -0.123
S4 Sulfur tetramer rSS 2.155 2.038 -0.117
ClF3 Chlorine trifluoride rFCl 1.597 1.703 0.107
ClF3 Chlorine trifluoride rFCl 1.597 1.703 0.107
19 molecules.