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	hartrees
Energy at 0K	-2627.132457
Energy at 298.15K	-2627.131990
HF Energy	-2627.132457
Nuclear repulsion energy	298.120794

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁'	797	794	0.00
2	A₂"	246	245	18.00
3	E'	899	896	62.17
3	E'	899	896	62.18
4	E'	316	315	19.90
4	E'	316	315	19.90

Atom	x (Å)	y (Å)
Se1	0.000	0.000
O2	0.000	1.645
O3	1.425	-0.823
O4	-1.425	-0.823

	Se1	O2	O3	O4
Se1		1.6452	1.6452	1.6452
O2	1.6452		2.8496	2.8496
O3	1.6452	2.8496		2.8496
O4	1.6452	2.8496	2.8496

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: BLYP/6-311G**

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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Number	Element	Mulliken
1	Se	1.058
2	O	-0.353
3	O	-0.353
4	O	-0.353

<r²>	86.922
(<r²>)^1/2	9.323

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

using model chemistry: BLYP/6-311G**

States and conformations

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