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	hartrees
Energy at 0K	-2625.062277
Energy at 298.15K
HF Energy	-2624.218106
Nuclear repulsion energy	301.370823

Atom	x (Å)	y (Å)
Se1	0.000	0.000
O2	0.000	1.627
O3	1.409	-0.814
O4	-1.409	-0.814

	Se1	O2	O3	O4
Se1		1.6274	1.6274	1.6274
O2	1.6274		2.8187	2.8187
O3	1.6274	2.8187		2.8187
O4	1.6274	2.8187	2.8187

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: CCSD(T)=FULL/aug-cc-pVDZ

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: CCSD(T)=FULL/aug-cc-pVDZ

States and conformations

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