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	hartrees
Energy at 0K	-4778.220286
Energy at 298.15K
HF Energy	-4778.113200
Nuclear repulsion energy	279.308546

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)	Raman Act (Å⁴/u)	Dep P	Dep U
1	A	2199	2100	55.04	173.19	0.11	0.20
2	A	707	675	1.18	44.64	0.71	0.83
3	A	315	301	7.47	80.39	0.75	0.86
4	A	258	246	0.22	13.53	0.32	0.48
5	B	2199	2100	60.23	182.71	0.75	0.86
6	B	704	672	11.68	29.11	0.75	0.86

Atom	x (Å)	y (Å)	z (Å)
Se1	0.000	1.258	-0.030
Se2	0.000	-1.258	-0.030
H3	1.057	1.397	1.015
H4	-1.057	-1.397	1.015

	Se1	Se2	H3	H4
Se1		2.5151	1.4925	3.0423
Se2	2.5151		3.0423	1.4925
H3	1.4925	3.0423		3.5034
H4	3.0423	1.4925	3.5034

All results from a given calculation for H₂Se₂ (hydrogen diselenide)

using model chemistry: MP2=FULL/3-21G

States and conformations

	Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
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All results from a given calculation for H2Se2 (hydrogen diselenide)

using model chemistry: MP2=FULL/3-21G

States and conformations

All results from a given calculation for H₂Se₂ (hydrogen diselenide)