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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 HF/cc-pV(T+d)Z

Species Name Bond type Bond Length (Å)
Experimental Calculated Difference
CH3S thiomethoxy rCH 1.090 2.357 1.267
CH3CH2SH ethanethiol rCH 1.095 1.822 0.727
CH3CH2SH ethanethiol rCH 1.095 1.822 0.727
HSSSH trisulfane rHS 1.344 2.050 0.707
HSSSH trisulfane rHS 1.344 2.050 0.707
HSSSH trisulfane rHS 1.344 2.050 0.706
HSSSH trisulfane rHS 1.344 2.050 0.706
S4 Sulfur tetramer rSS 2.155 2.847 0.692
CH3CH2SH ethanethiol rCH 1.089 1.522 0.433
CH3CH2SH ethanethiol rCH 1.089 1.522 0.433
CH3CH2SH ethanethiol rCH 1.092 1.522 0.430
CH3CH2SH ethanethiol rCH 1.092 1.522 0.430
S4 Sulfur tetramer rSS 2.155 2.465 0.310
CH3CH2SH ethanethiol rCS 1.820 1.522 -0.298
CH3CH2SH ethanethiol rCS 1.820 1.522 -0.298
CH3CH2SH ethanethiol rCC 1.528 1.822 0.294
CH3CH2SH ethanethiol rCC 1.528 1.822 0.294
HCl+ hydrogen chloride cation rHCl 1.315 1.581 0.267
Al2Cl6 Aluminum, di-μ-chlorotetrachlorodi- rAlCl 2.040 2.282 0.242
S4 Sulfur tetramer rSS 2.155 1.957 -0.198
S4 Sulfur tetramer rSS 1.898 2.093 0.195
Al2Cl6 Aluminum, di-μ-chlorotetrachlorodi- rAlCl 2.240 2.079 -0.161
S3 Sulfur trimer rSS 1.917 2.057 0.140
ClF5 chlorinepentafluoride rFCl 1.650 1.548 -0.102
SiC silicon monocarbide rCSi 1.722 1.622 -0.099
ClNO2 Nitryl chloride rNCl 1.840 1.753 -0.087
SO2Cl2 Sulfuryl chloride rSCl 2.076 1.990 -0.086
HClO4 perchloric acid rOCl 1.641 1.561 -0.080
ClF3 Chlorine trifluoride rFCl 1.597 1.668 0.071
ClF3 Chlorine trifluoride rFCl 1.597 1.668 0.071
C2Cl2 dichloroacetylene rCC 1.246 1.176 -0.070
HPO Hydrogen phosphorus oxide rPO 1.512 1.445 -0.067
ClFO3 Perchloryl fluoride rFCl 1.598 1.533 -0.065
CH2ClCHCl2 1,1,2-trichloroethane rCC 1.580 1.516 -0.064
AlO Aluminum monoxide rAlO 1.618 1.682 0.064
AlO Aluminum monoxide rAlO 1.618 1.682 0.064
FSN Thiazyl fluoride rFS 1.643 1.582 -0.061
CH3CSNH2 Ethanethioamide rHN 1.050 0.991 -0.059
SO Sulfur monoxide rOS 1.500 1.442 -0.058
SO Sulfur monoxide rOS 1.500 1.442 -0.058
ClNO Nitrosyl chloride rNCl 1.975 1.918 -0.057
SO Sulfur monoxide rOS 1.500 1.443 -0.057
SO Sulfur monoxide rOS 1.500 1.443 -0.057
SO Sulfur monoxide rOS 1.500 1.443 -0.057
SO Sulfur monoxide rOS 1.500 1.443 -0.057
SO Sulfur monoxide rOS 1.500 1.443 -0.057
SO Sulfur monoxide rOS 1.500 1.443 -0.057
SO2Cl2 Sulfuryl chloride rSO 1.443 1.387 -0.056
ClF3 Chlorine trifluoride rFCl 1.597 1.543 -0.054
ClF3 Chlorine trifluoride rFCl 1.597 1.543 -0.054
BH3PH3 borane phosphine rBP 1.937 1.990 0.053
HOCl hypochlorous acid rClO 1.697 1.645 -0.052
FSSF Difluorodisulfane rFS 1.635 1.583 -0.052
53 molecules.