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	hartrees
Energy at 0K	-2477.302761
Energy at 298.15K	-2477.306812
HF Energy	-2476.830377
Nuclear repulsion energy	185.753897

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)
1	A₁	3208	3079
2	A₁	3095	2970
3	A₁	1518	1457
4	A₁	1381	1325
5	A₁	1015	974
6	A₁	591	567
7	A₁	211	202
8	A₂	3198	3069
9	A₂	1498	1437
10	A₂	936	899
11	A₂	134	129
12	B₁	3192	3063
13	B₁	1509	1448
14	B₁	969	930
15	B₁	149	143
16	B₂	3209	3079
17	B₂	3098	2973
18	B₂	1512	1451
19	B₂	1356	1301
20	B₂	895	859
21	B₂	603	578

Atom	x (Å)	y (Å)	z (Å)
Se1	0.000	0.000	0.482
C2	0.000	1.452	-0.833
C3	0.000	-1.452	-0.833
H4	0.000	2.392	-0.282
H5	0.000	-2.392	-0.282
H6	0.893	1.395	-1.455
H7	-0.893	1.395	-1.455
H8	-0.893	-1.395	-1.455
H9	0.893	-1.395	-1.455

	Se1	C2	C3	H4	H5	H6	H7	H8	H9
Se1		1.9586	1.9586	2.5114	2.5114	2.5486	2.5486	2.5486	2.5486
C2	1.9586		2.9038	1.0896	3.8834	1.0900	1.0900	3.0477	3.0477
C3	1.9586	2.9038		3.8834	1.0896	3.0477	3.0477	1.0900	1.0900
H4	2.5114	1.0896	3.8834		4.7845	1.7799	1.7799	4.0638	4.0638
H5	2.5114	3.8834	1.0896	4.7845		4.0638	4.0638	1.7799	1.7799
H6	2.5486	1.0900	3.0477	1.7799	4.0638		1.7858	3.3122	2.7895
H7	2.5486	1.0900	3.0477	1.7799	4.0638	1.7858		2.7895	3.3122
H8	2.5486	3.0477	1.0900	4.0638	1.7799	3.3122	2.7895		1.7858
H9	2.5486	3.0477	1.0900	4.0638	1.7799	2.7895	3.3122	1.7858

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
Se1	C2	H4	107.503	Se1	C2	H6	110.151
Se1	C2	H7	110.151	Se1	C3	H5	107.503
Se1	C3	H8	110.151	Se1	C3	H9	110.151
C2	Se1	C3	95.683	H4	C2	H6	109.498
H4	C2	H7	109.498	H5	C3	H8	109.498
H5	C3	H9	109.498	H6	C2	H7	110.000
H8	C3	H9	110.000

All results from a given calculation for CH₃SeCH₃ (dimethylselenide)

using model chemistry: CCSD(T)/6-31+G**

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: CCSD(T)/6-31+G**

States and conformations

All results from a given calculation for CH₃SeCH₃ (dimethylselenide)