CCCBDB listing of experimental data page 2

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Property	Value	Uncertainty	units	Reference
Hfg(298.15K)	141.10	3.00	kJ mol^-1	2005Se
Hfg(0K)		3.00	kJ mol^-1	2005Se
Entropy (298.15K)	247.38	0.40	J K^-1 mol^-1	2005Se
Heat Capacity (298.15K)	41.71	0.20	J K^-1 mol^-1	2005Se

Mode Number	Symmetry	Frequency			Intensity			Comment	Description
Mode Number	Symmetry	Fundamental(cm^-1)	Harmonic(cm^-1)	Reference	(km mol^-1)	unc.	Reference	Comment	Description
1	Σ_g		385	1979HUB/HER

Description	Value	unc.	Connectivity				Reference	Comment
Description	Value	unc.	Atom 1	Atom 2	Atom 3	Atom 4	Reference	Comment
rSeSe	2.166	0.001	1	2			1979HUB/HER	re

Atom	x (Å)	y (Å)	z (Å)
Se1	0.0000	0.0000	0.0000
Se2	0.0000	0.0000	2.1660

	Se1	Se2
Se1		2.1660
Se2	2.1660

	Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
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Experimental data for Se2 (Selenium diatomic)

Experimental data for Se₂ (Selenium diatomic)