National Institute of Standards and Technology

Computational Chemistry Comparison and Benchmark DataBase
Release 22	May 2022
NIST Standard Reference Database 101

I	Introduction
II	Experimental data
III	Calculated data
IV	Data comparisons
V	Cost comparisons
VI	Input and output files
VII	Tutorials and Units
VIII	Links to other sites
IX	Feedback
X	Older CCCBDB versions
XII	Geometries
XIII	Vibrations
XIV	Reaction data
XV	Entropy data
XVI	Bibliographic data
XVII	Ion data
XVIII	Bad calculations
XIX	Index of properties
XX	H-bond dimers
XXI	Oddities

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IV.D.4. (XII.A.2.)

Compare Bonds

18 10 19 16 31

HF/CEP-31G for rSS

Histogram of Bond length differences (in Å) vs number of species

Differences greater than 1.100 are in the 1.100 bin. Differences less than -0.100 are in the -0.100 bin.

	10
	8
	6
	4
	2
	0
		-0.100			0.000			0.100			0.200			0.300			0.400			0.500			0.600			0.700			0.800			0.900			1.000			1.100
bond length difference calc. - exp. (Å)

	Species	Name	Difference (Å)
Most negative difference	S4	Sulfur tetramer	-0.024
Most positive difference	S4	Sulfur tetramer	0.951

Bond lengths
Click on entry for experimental details.

Species	Name	Experimental (Å)	Difference (Å)
S4	Sulfur tetramer	2.155	-0.024
S2+	sulfur diatomic cation	1.825	0.097
S4	Sulfur tetramer	1.898	0.112
S2	Sulfur diatomic	1.889	0.124
S2	Sulfur diatomic	1.889	0.124
S3	Sulfur trimer	1.917	0.141
S8	Octasulfur	2.059	0.146
SSO	Disulfur monoxide	1.884	0.147
SSO	Disulfur monoxide	1.884	0.148
HSSSH	trisulfane	2.054	0.153
HSSSH	trisulfane	2.054	0.153
HSSSH	trisulfane	2.053	0.154
HSSSH	trisulfane	2.053	0.154
H2S2	Disulfane	2.056	0.155
CH3SSCH3	Disulfide, dimethyl	2.038	0.163
CH3SSH	Hydrogen methyl disulfide	2.038	0.170
S4	Sulfur tetramer	1.898	0.182
ClSSCl	Disulfur dichloride	1.931	0.235
ClS2	Sulfur chloride	1.906	0.235
FSSF	Difluorodisulfane	1.890	0.250
S3	Sulfur trimer	1.917	0.324
S4	Sulfur tetramer	1.898	0.366
S4	Sulfur tetramer	2.155	0.504
S4	Sulfur tetramer	2.155	0.951