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	hartrees
Energy at 0K	-4801.560562
Energy at 298.15K
HF Energy	-4800.951240
Nuclear repulsion energy	300.022608

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)
1	A	2464	2374
2	A	760	732
3	A	372	358
4	A	298	287
5	B	2465	2376
6	B	757	729

Atom	x (Å)	y (Å)	z (Å)
Se1	0.000	1.165	-0.029
Se2	0.000	-1.165	-0.029
H3	1.028	1.306	0.994
H4	-1.028	-1.306	0.994

	Se1	Se2	H3	H4
Se1		2.3295	1.4570	2.8648
Se2	2.3295		2.8648	1.4570
H3	1.4570	2.8648		3.3236
H4	2.8648	1.4570	3.3236

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

using model chemistry: CCSD(T)=FULL/aug-cc-pVTZ

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: CCSD(T)=FULL/aug-cc-pVTZ

States and conformations

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