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	hartrees
Energy at 0K	-2469.188859
Energy at 298.15K	-2469.192972
HF Energy	-2469.188859
Nuclear repulsion energy	184.585758

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	3191	3074	6.14
2	A₁	3089	2976	19.06
3	A₁	1541	1485	2.10
4	A₁	1397	1346	0.55
5	A₁	1024	987	32.85
6	A₁	610	587	0.34
7	A₁	207	199	0.00
8	A₂	3188	3071	0.00
9	A₂	1521	1466	0.00
10	A₂	934	900	0.00
11	A₂	157	151	0.00
12	B₁	3184	3067	18.66
13	B₁	1530	1474	30.81
14	B₁	964	929	22.40
15	B₁	147	141	0.53
16	B₂	3192	3075	1.54
17	B₂	3092	2978	17.53
18	B₂	1531	1475	28.54
19	B₂	1374	1324	0.66
20	B₂	904	871	1.42
21	B₂	625	602	0.46

Atom	x (Å)	y (Å)	z (Å)
Se1	0.000	0.000	0.483
C2	0.000	1.467	-0.835
C3	0.000	-1.467	-0.835
H4	0.000	2.404	-0.275
H5	0.000	-2.404	-0.275
H6	0.896	1.419	-1.458
H7	-0.896	1.419	-1.458
H8	-0.896	-1.419	-1.458
H9	0.896	-1.419	-1.458

	Se1	C2	C3	H4	H5	H6	H7	H8	H9
Se1		1.9719	1.9719	2.5207	2.5207	2.5656	2.5656	2.5656	2.5656
C2	1.9719		2.9335	1.0925	3.9115	1.0921	1.0921	3.0851	3.0851
C3	1.9719	2.9335		3.9115	1.0925	3.0851	3.0851	1.0921	1.0921
H4	2.5207	1.0925	3.9115		4.8087	1.7816	1.7816	4.1014	4.1014
H5	2.5207	3.9115	1.0925	4.8087		4.1014	4.1014	1.7816	1.7816
H6	2.5656	1.0921	3.0851	1.7816	4.1014		1.7919	3.3564	2.8381
H7	2.5656	1.0921	3.0851	1.7816	4.1014	1.7919		2.8381	3.3564
H8	2.5656	3.0851	1.0921	4.1014	1.7816	3.3564	2.8381		1.7919
H9	2.5656	3.0851	1.0921	4.1014	1.7816	2.8381	3.3564	1.7919

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
Se1	C2	H4	107.173	Se1	C2	H6	110.399
Se1	C2	H7	110.399	Se1	C3	H5	107.173
Se1	C3	H8	110.399	Se1	C3	H9	110.399
C2	Se1	C3	96.117	H4	C2	H6	109.279
H4	C2	H7	109.279	H5	C3	H8	109.279
H5	C3	H9	109.279	H6	C2	H7	110.247
H8	C3	H9	110.247

All results from a given calculation for CH₃SeCH₃ (dimethylselenide)

using model chemistry: HSEh1PBE/3-21G

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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Number	Element	Mulliken
1	Se	0.369
2	C	-0.928
3	C	-0.928
4	H	0.251
5	H	0.251
6	H	0.246
7	H	0.246
8	H	0.246
9	H	0.246

<r²>	93.547
(<r²>)^1/2	9.672

All results from a given calculation for CH3SeCH3 (dimethylselenide)

using model chemistry: HSEh1PBE/3-21G

States and conformations

All results from a given calculation for CH₃SeCH₃ (dimethylselenide)