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	hartrees
Energy at 0K	-2512.286225
Energy at 298.15K	-2512.284355
HF Energy	-2512.286225
Nuclear repulsion energy	136.287319

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	Σ	2139	2042	781.34
2	Σ	718	686	4.39
3	Π	528	505	0.97
3	Π	528	505	0.97

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	-1.003
O2	0.000	0.000	-2.164
Se3	0.000	0.000	0.686

	C1	O2	Se3
C1		1.1602	1.6897
O2	1.1602		2.8499
Se3	1.6897	2.8499

Number	Element	Mulliken
1	C	0.303
2	O	-0.243
3	Se	-0.059

All results from a given calculation for OCSe (Carbonyl selenide)

using model chemistry: HSEh1PBE/6-31+G**

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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<r²>	77.782
(<r²>)^1/2	8.819