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	hartrees
Energy at 0K	-2624.953387
Energy at 298.15K
HF Energy	-2624.175682
Nuclear repulsion energy	302.588239

Atom	x (Å)	y (Å)
Se1	0.000	0.000
O2	0.000	1.621
O3	1.404	-0.810
O4	-1.404	-0.810

	Se1	O2	O3	O4
Se1		1.6208	1.6208	1.6208
O2	1.6208		2.8074	2.8074
O3	1.6208	2.8074		2.8074
O4	1.6208	2.8074	2.8074

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/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/cc-pVDZ

States and conformations

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