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	hartrees
Energy at 0K	-2627.070229
Energy at 298.15K
HF Energy	-2627.070229
Nuclear repulsion energy	308.858393

Atom	x (Å)	y (Å)
Se1	0.000	0.000
O2	0.000	1.588
O3	1.375	-0.794
O4	-1.375	-0.794

	Se1	O2	O3	O4
Se1		1.5880	1.5880	1.5880
O2	1.5880		2.7505	2.7505
O3	1.5880	2.7505		2.7505
O4	1.5880	2.7505	2.7505

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

Number	Element	Mulliken
1	Se	1.232
2	O	-0.411
3	O	-0.411
4	O	-0.411

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

using model chemistry: M06-2X/TZVP

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>	83.015
(<r²>)^1/2	9.111

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

using model chemistry: M06-2X/TZVP

States and conformations

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