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	hartrees
Energy at 0K	-2477.593085
Energy at 298.15K	-2477.597414
HF Energy	-2476.990789
Nuclear repulsion energy	190.020398

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	3231	3037	4.01
2	A₁	3120	2933	13.92
3	A₁	1528	1436	0.23
4	A₁	1363	1281	0.94
5	A₁	1001	941	19.22
6	A₁	680	639	0.07
7	A₁	224	211	0.05
8	A₂	3228	3034	0.00
9	A₂	1512	1421	0.00
10	A₂	921	866	0.00
11	A₂	198	186	0.00
12	B₁	3222	3028	7.33
13	B₁	1521	1430	12.22
14	B₁	955	897	10.64
15	B₁	196	184	0.36
16	B₂	3232	3038	0.18
17	B₂	3125	2937	12.18
18	B₂	1522	1430	15.34
19	B₂	1337	1257	5.19
20	B₂	880	827	0.52
21	B₂	696	654	1.91

Atom	x (Å)	y (Å)	z (Å)
Se1	0.000	0.000	0.465
C2	0.000	1.421	-0.800
C3	0.000	-1.421	-0.800
H4	0.000	2.358	-0.248
H5	0.000	-2.358	-0.248
H6	0.889	1.391	-1.426
H7	-0.889	1.391	-1.426
H8	-0.889	-1.391	-1.426
H9	0.889	-1.391	-1.426

	Se1	C2	C3	H4	H5	H6	H7	H8	H9
Se1		1.9022	1.9022	2.4635	2.4635	2.5095	2.5095	2.5095	2.5095
C2	1.9022		2.8423	1.0874	3.8194	1.0874	1.0874	3.0147	3.0147
C3	1.9022	2.8423		3.8194	1.0874	3.0147	3.0147	1.0874	1.0874
H4	2.4635	1.0874	3.8194		4.7164	1.7643	1.7643	4.0288	4.0288
H5	2.4635	3.8194	1.0874	4.7164		4.0288	4.0288	1.7643	1.7643
H6	2.5095	1.0874	3.0147	1.7643	4.0288		1.7772	3.3008	2.7815
H7	2.5095	1.0874	3.0147	1.7643	4.0288	1.7772		2.7815	3.3008
H8	2.5095	3.0147	1.0874	4.0288	1.7643	3.3008	2.7815		1.7772
H9	2.5095	3.0147	1.0874	4.0288	1.7643	2.7815	3.3008	1.7772

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
Se1	C2	H4	107.853	Se1	C2	H6	111.210
Se1	C2	H7	111.210	Se1	C3	H5	107.853
Se1	C3	H8	111.210	Se1	C3	H9	111.210
C2	Se1	C3	96.683	H4	C2	H6	108.432
H4	C2	H7	108.432	H5	C3	H8	108.432
H5	C3	H9	108.432	H6	C2	H7	109.606
H8	C3	H9	109.606

All results from a given calculation for CH₃SeCH₃ (dimethylselenide)

using model chemistry: MP2=FULL/6-31G(2df,p)

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 CH3SeCH3 (dimethylselenide)

using model chemistry: MP2=FULL/6-31G(2df,p)

States and conformations

All results from a given calculation for CH₃SeCH₃ (dimethylselenide)