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	hartrees
Energy at 0K	-873.042123
Energy at 298.15K
HF Energy	-872.806912
Nuclear repulsion energy	193.114012

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2248	2248	137.59
2	A₁	2242	2242	19.44
3	A₁	2219	2219	66.68
4	A₁	970	970	70.50
5	A₁	944	944	0.86
6	A₁	905	905	195.80
7	A₁	574	574	6.36
8	A₁	389	389	0.60
9	A₁	96	96	1.43
10	A₂	2244	2244	0.00
11	A₂	964	964	0.00
12	A₂	717	717	0.00
13	A₂	421	421	0.00
14	A₂	84	84	0.00
15	B₁	2250	2250	241.50
16	B₁	2227	2227	22.39
17	B₁	968	968	76.44
18	B₁	603	603	10.12
19	B₁	316	316	20.54
20	B₁	103	103	0.07
21	B₂	2246	2246	84.46
22	B₂	2237	2237	90.84
23	B₂	963	963	38.38
24	B₂	893	893	327.93
25	B₂	726	726	289.85
26	B₂	466	466	7.30
27	B₂	436	436	19.50

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.899
Si2	0.000	1.932	-0.422
Si3	0.000	-1.932	-0.422
H4	1.196	0.000	1.772
H5	-1.196	0.000	1.772
H6	0.000	3.150	0.415
H7	0.000	-3.150	0.415
H8	1.199	1.952	-1.286
H9	-1.199	1.952	-1.286
H10	-1.199	-1.952	-1.286
H11	1.199	-1.952	-1.286

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3406	2.3406	1.4810	1.4810	3.1870	3.1870	3.1657	3.1657	3.1657	3.1657
Si2	2.3406		3.8642	3.1587	3.1587	1.4778	5.1506	1.4782	1.4782	4.1556	4.1556
Si3	2.3406	3.8642		3.1587	3.1587	5.1506	1.4778	4.1556	4.1556	1.4782	1.4782
H4	1.4810	3.1587	3.1587		2.3930	3.6325	3.6325	3.6275	4.3472	4.3472	3.6275
H5	1.4810	3.1587	3.1587	2.3930		3.6325	3.6325	4.3472	3.6275	3.6275	4.3472
H6	3.1870	1.4778	5.1506	3.6325	3.6325		6.3000	2.4015	2.4015	5.5100	5.5100
H7	3.1870	5.1506	1.4778	3.6325	3.6325	6.3000		5.5100	5.5100	2.4015	2.4015
H8	3.1657	1.4782	4.1556	3.6275	4.3472	2.4015	5.5100		2.3986	4.5816	3.9036
H9	3.1657	1.4782	4.1556	4.3472	3.6275	2.4015	5.5100	2.3986		3.9036	4.5816
H10	3.1657	4.1556	1.4782	4.3472	3.6275	5.5100	2.4015	4.5816	3.9036		2.3986
H11	3.1657	4.1556	1.4782	3.6275	4.3472	5.5100	2.4015	3.9036	4.5816	2.3986

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	111.139	S1	S2	H8	109.928
S1	S2	H9	109.928	S1	S3	H7	111.139
S1	S3	H10	109.928	S1	S3	H11	109.928
S2	S1	S3	111.278	S2	S1	H4	109.427
S2	S1	H5	109.427	S3	S1	H4	109.427
S3	S1	H5	109.427	H4	S1	H5	107.787
H6	S2	H8	108.667	H6	S2	H9	108.667
H7	S3	H10	108.667	H7	S3	H11	108.667
H8	S2	H9	108.452	H10	S3	H11	108.452

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: B2PLYP=FULLultrafine/aug-cc-pV(T+d)Z

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 Si3H8 (trisilane)

using model chemistry: B2PLYP=FULLultrafine/aug-cc-pV(T+d)Z

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)