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

CCD/6-31G(2df,p) 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.

	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	-0.084
Most positive difference	S4	Sulfur tetramer	0.710

Bond lengths
Click on entry for experimental details.

Species	Name	Experimental (Å)	Difference (Å)
S4	Sulfur tetramer	2.155	-0.084
S4	Sulfur tetramer	1.898	-0.006
S3	Sulfur trimer	1.917	0.000
S2+	sulfur diatomic cation	1.825	0.004
SSO	Disulfur monoxide	1.884	0.005
S2	Sulfur diatomic	1.889	0.011
HSSSH	trisulfane	2.054	0.013
HSSSH	trisulfane	2.054	0.014
HSSSH	trisulfane	2.053	0.014
HSSSH	trisulfane	2.053	0.014
H2S2	Disulfane	2.056	0.015
S4	Sulfur tetramer	1.898	0.016
S2	Sulfur diatomic	1.889	0.022
CH3SSH	Hydrogen methyl disulfide	2.038	0.025
S3	Sulfur trimer	1.917	0.170
S4	Sulfur tetramer	1.898	0.220
S4	Sulfur tetramer	2.155	0.349
S4	Sulfur tetramer	2.155	0.710