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	hartrees
Energy at 0K	-871.897613
Energy at 298.15K	-871.905356
HF Energy	-871.415001
Nuclear repulsion energy	193.074147

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2284	2150	119.68
2	A₁	2276	2143	12.14
3	A₁	2255	2123	63.80
4	A₁	982	924	67.13
5	A₁	958	902	2.53
6	A₁	921	868	185.48
7	A₁	583	549	5.63
8	A₁	401	377	0.52
9	A₁	98	92	1.32
10	A₂	2281	2148	0.00
11	A₂	974	917	0.00
12	A₂	726	684	0.00
13	A₂	428	403	0.00
14	A₂	82	78	0.00
15	B₁	2285	2152	197.17
16	B₁	2263	2131	25.43
17	B₁	978	921	73.09
18	B₁	614	578	8.66
19	B₁	320	301	17.91
20	B₁	101	95	0.03
21	B₂	2282	2149	59.69
22	B₂	2272	2139	94.00
23	B₂	974	918	34.66
24	B₂	909	856	310.53
25	B₂	744	701	273.17
26	B₂	479	451	5.10
27	B₂	447	421	18.53

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.904
Si2	0.000	1.929	-0.424
Si3	0.000	-1.929	-0.424
H4	1.198	0.000	1.775
H5	-1.198	0.000	1.775
H6	0.000	3.150	0.410
H7	0.000	-3.150	0.410
H8	1.200	1.946	-1.288
H9	-1.200	1.946	-1.288
H10	-1.200	-1.946	-1.288
H11	1.200	-1.946	-1.288

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3421	2.3421	1.4815	1.4815	3.1885	3.1885	3.1676	3.1676	3.1676	3.1676
Si2	2.3421		3.8585	3.1614	3.1614	1.4787	5.1474	1.4788	1.4788	4.1481	4.1481
Si3	2.3421	3.8585		3.1614	3.1614	5.1474	1.4787	4.1481	4.1481	1.4788	1.4788
H4	1.4815	3.1614	3.1614		2.3964	3.6361	3.6361	3.6296	4.3502	4.3502	3.6296
H5	1.4815	3.1614	3.1614	2.3964		3.6361	3.6361	4.3502	3.6296	3.6296	4.3502
H6	3.1885	1.4787	5.1474	3.6361	3.6361		6.3001	2.4028	2.4028	5.5044	5.5044
H7	3.1885	5.1474	1.4787	3.6361	3.6361	6.3001		5.5044	5.5044	2.4028	2.4028
H8	3.1676	1.4788	4.1481	3.6296	4.3502	2.4028	5.5044		2.3997	4.5729	3.8927
H9	3.1676	1.4788	4.1481	4.3502	3.6296	2.4028	5.5044	2.3997		3.8927	4.5729
H10	3.1676	4.1481	1.4788	4.3502	3.6296	5.5044	2.4028	4.5729	3.8927		2.3997
H11	3.1676	4.1481	1.4788	3.6296	4.3502	5.5044	2.4028	3.8927	4.5729	2.3997

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	111.109	S1	S2	H8	109.932
S1	S2	H9	109.932	S1	S3	H7	111.109
S1	S3	H10	109.932	S1	S3	H11	109.932
S2	S1	S3	110.918	S2	S1	H4	109.479
S2	S1	H5	109.479	S3	S1	H4	109.479
S3	S1	H5	109.479	H4	S1	H5	107.952
H6	S2	H8	108.676	H6	S2	H9	108.676
H7	S3	H10	108.676	H7	S3	H11	108.676
H8	S2	H9	108.458	H10	S3	H11	108.458

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: CCSD=FULL/6-31G(2df,p)

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: CCSD=FULL/6-31G(2df,p)

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)