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	hartrees
Energy at 0K	-873.213954
Energy at 298.15K
HF Energy	-872.808004
Nuclear repulsion energy	192.744607

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2251	2251	139.26
2	A₁	2243	2243	16.30
3	A₁	2221	2221	66.31
4	A₁	971	971	74.22
5	A₁	946	946	1.84
6	A₁	908	908	191.97
7	A₁	573	573	6.21
8	A₁	387	387	0.56
9	A₁	97	97	1.39
10	A₂	2248	2248	0.00
11	A₂	962	962	0.00
12	A₂	717	717	0.00
13	A₂	423	423	0.00
14	A₂	84	84	0.00
15	B₁	2253	2253	233.98
16	B₁	2229	2229	25.27
17	B₁	966	966	77.02
18	B₁	603	603	9.53
19	B₁	319	319	20.08
20	B₁	101	101	0.06
21	B₂	2250	2250	76.35
22	B₂	2239	2239	96.35
23	B₂	963	963	36.85
24	B₂	895	895	331.05
25	B₂	729	729	294.53
26	B₂	466	466	7.96
27	B₂	439	439	16.96

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.897
Si2	0.000	1.939	-0.422
Si3	0.000	-1.939	-0.422
H4	1.197	0.000	1.771
H5	-1.197	0.000	1.771
H6	0.000	3.154	0.421
H7	0.000	-3.154	0.421
H8	1.200	1.963	-1.286
H9	-1.200	1.963	-1.286
H10	-1.200	-1.963	-1.286
H11	1.200	-1.963	-1.286

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3449	2.3449	1.4823	1.4823	3.1900	3.1900	3.1721	3.1721	3.1721	3.1721
Si2	2.3449		3.8778	3.1624	3.1624	1.4790	5.1624	1.4793	1.4793	4.1733	4.1733
Si3	2.3449	3.8778		3.1624	3.1624	5.1624	1.4790	4.1733	4.1733	1.4793	1.4793
H4	1.4823	3.1624	3.1624		2.3950	3.6339	3.6339	3.6331	4.3530	4.3530	3.6331
H5	1.4823	3.1624	3.1624	2.3950		3.6339	3.6339	4.3530	3.6331	3.6331	4.3530
H6	3.1900	1.4790	5.1624	3.6339	3.6339		6.3085	2.4026	2.4026	5.5268	5.5268
H7	3.1900	5.1624	1.4790	3.6339	3.6339	6.3085		5.5268	5.5268	2.4026	2.4026
H8	3.1721	1.4793	4.1733	3.6331	4.3530	2.4026	5.5268		2.4006	4.6026	3.9270
H9	3.1721	1.4793	4.1733	4.3530	3.6331	2.4026	5.5268	2.4006		3.9270	4.6026
H10	3.1721	4.1733	1.4793	4.3530	3.6331	5.5268	2.4026	4.6026	3.9270		2.4006
H11	3.1721	4.1733	1.4793	3.6331	4.3530	5.5268	2.4026	3.9270	4.6026	2.4006

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	111.036	S1	S2	H8	110.019
S1	S2	H9	110.019	S1	S3	H7	111.036
S1	S3	H10	110.019	S1	S3	H11	110.019
S2	S1	S3	111.553	S2	S1	H4	109.359
S2	S1	H5	109.359	S3	S1	H4	109.359
S3	S1	H5	109.359	H4	S1	H5	107.772
H6	S2	H8	108.620	H6	S2	H9	108.620
H7	S3	H10	108.620	H7	S3	H11	108.620
H8	S2	H9	108.466	H10	S3	H11	108.466

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: B2PLYP=FULLultrafine/cc-pCVTZ

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/cc-pCVTZ

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)