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	hartrees
Energy at 0K	-2627.346552
Energy at 298.15K	-2627.346284
HF Energy	-2627.346552
Nuclear repulsion energy	307.169890

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁'	911	874	0.00
2	A₂"	285	273	27.17
3	E'	1022	980	83.39
3	E'	1022	980	83.39
4	E'	348	334	28.82
4	E'	348	334	28.82

Atom	x (Å)	y (Å)
Se1	0.000	0.000
O2	0.000	1.597
O3	1.383	-0.798
O4	-1.383	-0.798

	Se1	O2	O3	O4
Se1		1.5967	1.5967	1.5967
O2	1.5967		2.7656	2.7656
O3	1.5967	2.7656		2.7656
O4	1.5967	2.7656	2.7656

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: B1B95/6-311G*

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	1.176
2	O	-0.392
3	O	-0.392
4	O	-0.392

<r²>	83.055
(<r²>)^1/2	9.113

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

using model chemistry: B1B95/6-311G*

States and conformations

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