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	hartrees
Energy at 0K	-2500.789664
Energy at 298.15K
HF Energy	-2500.789664
Nuclear repulsion energy	134.858806

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	Σ	2205	1991	963.13
2	Σ	638	576	24.94
3	Π	520	470	11.49
3	Π	520	470	11.49

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	-1.033
O2	0.000	0.000	-2.176
Se3	0.000	0.000	0.694

	C1	O2	Se3
C1		1.1438	1.7269
O2	1.1438		2.8707
Se3	1.7269	2.8707

Number	Element	Mulliken
1	C	0.573
2	O	-0.484
3	Se	-0.089

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

using model chemistry: HF/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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<r²>	79.189
(<r²>)^1/2	8.899