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	hartrees
Energy at 0K	-2612.355272
Energy at 298.15K	-2612.354961
HF Energy	-2611.841602
Nuclear repulsion energy	301.909870

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁'	954	913	0.00
2	A₂"	261	249	23.36
3	E'	1106	1058	52.83
3	E'	1106	1058	52.83
4	E'	328	314	27.23
4	E'	328	314	27.23

Atom	x (Å)	y (Å)
Se1	0.000	0.000
O2	0.000	1.625
O3	1.407	-0.812
O4	-1.407	-0.812

	Se1	O2	O3	O4
Se1		1.6246	1.6246	1.6246
O2	1.6246		2.8138	2.8138
O3	1.6246	2.8138		2.8138
O4	1.6246	2.8138	2.8138

atom1	atom2	atom3	angle		atom1	atom2	atom3	angle
O2	Se1	O3	120.000		O2	Se1	O4	120.000
O3	Se1	O4	120.000

All results from a given calculation for SeO₃ (selenium trioxide)

using model chemistry: CCD/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 SeO3 (selenium trioxide)

using model chemistry: CCD/3-21G*

States and conformations

All results from a given calculation for SeO₃ (selenium trioxide)