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	hartrees
Energy at 0K	-2479.841315
Energy at 298.15K	-2479.845436
HF Energy	-2479.032425
Nuclear repulsion energy	185.971515

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	3198	3198	9.35
2	A₁	3094	3094	23.76
3	A₁	1523	1523	1.01
4	A₁	1384	1384	1.55
5	A₁	1013	1013	22.94
6	A₁	607	607	0.22
7	A₁	219	219	0.01
8	A₂	3194	3194	0.00
9	A₂	1504	1504	0.00
10	A₂	931	931	0.00
11	A₂	152	152	0.00
12	B₁	3189	3189	19.48
13	B₁	1514	1514	19.32
14	B₁	962	962	14.72
15	B₁	155	155	0.39
16	B₂	3199	3199	3.64
17	B₂	3098	3098	20.84
18	B₂	1515	1515	18.11
19	B₂	1362	1362	4.06
20	B₂	893	893	0.36
21	B₂	625	625	0.96

Atom	x (Å)	y (Å)	z (Å)
Se1	0.000	0.000	0.478
C2	0.000	1.455	-0.827
C3	0.000	-1.455	-0.827
H4	0.000	2.393	-0.272
H5	0.000	-2.393	-0.272
H6	0.894	1.405	-1.449
H7	-0.894	1.405	-1.449
H8	-0.894	-1.405	-1.449
H9	0.894	-1.405	-1.449

	Se1	C2	C3	H4	H5	H6	H7	H8	H9
Se1		1.9549	1.9549	2.5076	2.5076	2.5469	2.5469	2.5469	2.5469
C2	1.9549		2.9098	1.0896	3.8873	1.0896	1.0896	3.0602	3.0602
C3	1.9549	2.9098		3.8873	1.0896	3.0602	3.0602	1.0896	1.0896
H4	2.5076	1.0896	3.8873		4.7852	1.7769	1.7769	4.0750	4.0750
H5	2.5076	3.8873	1.0896	4.7852		4.0750	4.0750	1.7769	1.7769
H6	2.5469	1.0896	3.0602	1.7769	4.0750		1.7876	3.3307	2.8103
H7	2.5469	1.0896	3.0602	1.7769	4.0750	1.7876		2.8103	3.3307
H8	2.5469	3.0602	1.0896	4.0750	1.7769	3.3307	2.8103		1.7876
H9	2.5469	3.0602	1.0896	4.0750	1.7769	2.8103	3.3307	1.7876

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
Se1	C2	H4	107.474	Se1	C2	H6	110.292
Se1	C2	H7	110.292	Se1	C3	H5	107.474
Se1	C3	H8	110.292	Se1	C3	H9	110.292
C2	Se1	C3	96.188	H4	C2	H6	109.250
H4	C2	H7	109.250	H5	C3	H8	109.250
H5	C3	H9	109.250	H6	C2	H7	110.225
H8	C3	H9	110.225

All results from a given calculation for CH₃SeCH₃ (dimethylselenide)

using model chemistry: MP3=FULL/6-311G*

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: MP3=FULL/6-311G*

States and conformations

All results from a given calculation for CH₃SeCH₃ (dimethylselenide)