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

QCISD/6-31+G** 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.

	18
	16
	14
	12
	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	-0.027
Most positive difference	S4	Sulfur tetramer	0.736

Bond lengths
Click on entry for experimental details.

Species	Name	Experimental (Å)	Difference (Å)
S4	Sulfur tetramer	2.155	-0.027
S4	Sulfur tetramer	1.898	0.008
S2+	sulfur diatomic cation	1.825	0.019
S8	Octasulfur	2.059	0.021
S3	Sulfur trimer	1.917	0.024
SSO	Disulfur monoxide	1.884	0.025
HSSSH	trisulfane	2.054	0.027
S2	Sulfur diatomic	1.889	0.027
HSSSH	trisulfane	2.054	0.028
HSSSH	trisulfane	2.053	0.028
HSSSH	trisulfane	2.053	0.028
H2S2	Disulfane	2.056	0.029
CH3SSCH3	Disulfide, dimethyl	2.038	0.031
S4	Sulfur tetramer	1.898	0.034
ClS2	Sulfur chloride	1.906	0.035
CH3SSH	Hydrogen methyl disulfide	2.038	0.039
S2	Sulfur diatomic	1.889	0.041
FSSF	Difluorodisulfane	1.890	0.047
ClSSCl	Disulfur dichloride	1.931	0.067
S3	Sulfur trimer	1.917	0.182
S4	Sulfur tetramer	1.898	0.240
S4	Sulfur tetramer	2.155	0.446
S4	Sulfur tetramer	2.155	0.736