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	hartrees
Energy at 0K	-2477.269362
Energy at 298.15K	-2477.273532
HF Energy	-2476.810972
Nuclear repulsion energy	187.051052

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	3267	3052	7.95
2	A₁	3145	2939	18.98
3	A₁	1547	1446	0.00
4	A₁	1393	1301	4.74
5	A₁	1021	954	19.72
6	A₁	610	570	0.36
7	A₁	223	209	0.04
8	A₂	3267	3053	0.00
9	A₂	1525	1425	0.00
10	A₂	930	869	0.00
11	A₂	161	150	0.00
12	B₁	3262	3048	15.21
13	B₁	1538	1437	10.14
14	B₁	967	904	10.64
15	B₁	169	158	0.32
16	B₂	3268	3053	1.89
17	B₂	3149	2943	17.47
18	B₂	1540	1439	13.93
19	B₂	1366	1276	12.41
20	B₂	899	840	0.41
21	B₂	629	587	0.60

Atom	x (Å)	y (Å)	z (Å)
Se1	0.000	0.000	0.474
C2	0.000	1.450	-0.820
C3	0.000	-1.450	-0.820
H4	0.000	2.379	-0.259
H5	0.000	-2.379	-0.259
H6	0.893	1.401	-1.436
H7	-0.893	1.401	-1.436
H8	-0.893	-1.401	-1.436
H9	0.893	-1.401	-1.436

	Se1	C2	C3	H4	H5	H6	H7	H8	H9
Se1		1.9430	1.9430	2.4895	2.4895	2.5309	2.5309	2.5309	2.5309
C2	1.9430		2.8994	1.0856	3.8697	1.0853	1.0853	3.0500	3.0500
C3	1.9430	2.8994		3.8697	1.0856	3.0500	3.0500	1.0853	1.0853
H4	2.4895	1.0856	3.8697		4.7583	1.7713	1.7713	4.0584	4.0584
H5	2.4895	3.8697	1.0856	4.7583		4.0584	4.0584	1.7713	1.7713
H6	2.5309	1.0853	3.0500	1.7713	4.0584		1.7851	3.3224	2.8021
H7	2.5309	1.0853	3.0500	1.7713	4.0584	1.7851		2.8021	3.3224
H8	2.5309	3.0500	1.0853	4.0584	1.7713	3.3224	2.8021		1.7851
H9	2.5309	3.0500	1.0853	4.0584	1.7713	2.8021	3.3224	1.7851

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
Se1	C2	H4	107.145	Se1	C2	H6	110.135
Se1	C2	H7	110.135	Se1	C3	H5	107.145
Se1	C3	H8	110.135	Se1	C3	H9	110.135
C2	Se1	C3	96.506	H4	C2	H6	109.355
H4	C2	H7	109.355	H5	C3	H8	109.355
H5	C3	H9	109.355	H6	C2	H7	110.642
H8	C3	H9	110.642

All results from a given calculation for CH₃SeCH₃ (dimethylselenide)

using model chemistry: MP2=FULL/6-31G**

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**

States and conformations

All results from a given calculation for CH₃SeCH₃ (dimethylselenide)