CCCBDB listing of experimental data page 2

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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		580	webbook

Description	Value	unc.	Connectivity				Reference	Comment
Description	Value	unc.	Atom 1	Atom 2	Atom 3	Atom 4	Reference	Comment
rSiSe	2.058		1	2			webbook

Atom	x (Å)	y (Å)	z (Å)
Si1	0.0000	0.0000	0.0000
Se2	0.0000	0.0000	2.0583

	Si1	Se2
Si1		2.0583
Se2	2.0583

State	Config	State description	Conf description	Exp. min.	Dipole (Debye)				Reference	comment	Point Group	Components
State	Config	State description	Conf description	Exp. min.	x	y	z	total	Reference	comment	Point Group	dipole	quadrupole
1	1	¹Σ	C_∞v	True							C_∞v	1	1

	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 SiSe (Silicon Monoselenide)