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	hartrees
Energy at 0K	-4801.153242
Energy at 298.15K
HF Energy	-4800.800657
Nuclear repulsion energy	294.345837

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)
1	A	2429	2357
2	A	740	718
3	A	357	346
4	A	277	268
5	B	2431	2358
6	B	735	713

Atom	x (Å)	y (Å)	z (Å)
Se1	0.000	1.188	-0.030
Se2	0.000	-1.188	-0.030
H3	1.041	1.333	1.007
H4	-1.041	-1.333	1.007

	Se1	Se2	H3	H4
Se1		2.3759	1.4760	2.9174
Se2	2.3759		2.9174	1.4760
H3	1.4760	2.9174		3.3822
H4	2.9174	1.4760	3.3822

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

using model chemistry: QCISD(T)=FULL/aug-cc-pVDZ

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: QCISD(T)=FULL/aug-cc-pVDZ

States and conformations

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