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	hartrees
Energy at 0K	-2625.290190
Energy at 298.15K	-2625.289891
HF Energy	-2624.287907
Nuclear repulsion energy	305.182167

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁'	913	870	0.00
2	A₂"	272	259	20.79
3	E'	1082	1031	98.30
3	E'	1082	1031	98.30
4	E'	329	314	26.89
4	E'	329	314	26.89

Atom	x (Å)	y (Å)
Se1	0.000	0.000
O2	0.000	1.607
O3	1.392	-0.804
O4	-1.392	-0.804

	Se1	O2	O3	O4
Se1		1.6071	1.6071	1.6071
O2	1.6071		2.7836	2.7836
O3	1.6071	2.7836		2.7836
O4	1.6071	2.7836	2.7836

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: MP2=FULL/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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All results from a given calculation for SeO3 (selenium trioxide)

using model chemistry: MP2=FULL/TZVP

States and conformations

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