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

MP2/3-21G for rClO

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

Differences greater than 0.220 are in the 0.220 bin. Differences less than -0.020 are in the -0.020 bin.

	10
	8
	6
	4
	2
	0
		-0.020			0.000			0.020			0.040			0.060			0.080			0.100			0.120			0.140			0.160			0.180			0.200			0.220
bond length difference calc. - exp. (Å)

	Species	Name	Difference (Å)
Most negative difference	ClO	Monochlorine monoxide	0.108
Most positive difference	OClO	Chlorine dioxide	0.221

Bond lengths
Click on entry for experimental details.

Species	Name	Experimental (Å)	Difference (Å)
ClO	Monochlorine monoxide	1.596	0.108
HOCl	hypochlorous acid	1.697	0.144
HOCl	hypochlorous acid	1.697	0.145
Cl2O	Dichlorine monoxide	1.696	0.177
ClFO3	Perchloryl fluoride	1.400	0.187
OClO	Chlorine dioxide	1.470	0.221
OClO	Chlorine dioxide	1.470	0.221