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	hartrees
Energy at 0K	-871.826194
Energy at 298.15K	-871.833924
HF Energy	-871.439082
Nuclear repulsion energy	191.139848

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2242	2242	126.93
2	A₁	2232	2232	18.50
3	A₁	2214	2214	72.74
4	A₁	964	964	79.02
5	A₁	942	942	2.58
6	A₁	905	905	195.93
7	A₁	572	572	7.10
8	A₁	389	389	0.58
9	A₁	98	98	1.53
10	A₂	2238	2238	0.00
11	A₂	956	956	0.00
12	A₂	716	716	0.00
13	A₂	426	426	0.00
14	A₂	85	85	0.00
15	B₁	2242	2242	227.91
16	B₁	2223	2223	21.22
17	B₁	959	959	80.40
18	B₁	603	603	9.83
19	B₁	319	319	21.72
20	B₁	99	99	0.04
21	B₂	2240	2240	76.29
22	B₂	2227	2227	94.70
23	B₂	957	957	37.26
24	B₂	892	892	330.31
25	B₂	730	730	290.25
26	B₂	469	469	7.94
27	B₂	442	442	19.19

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.909
Si2	0.000	1.952	-0.427
Si3	0.000	-1.952	-0.427
H4	1.208	0.000	1.789
H5	-1.208	0.000	1.789
H6	0.000	3.181	0.420
H7	0.000	-3.181	0.420
H8	1.211	1.972	-1.299
H9	-1.211	1.972	-1.299
H10	-1.211	-1.972	-1.299
H11	1.211	-1.972	-1.299

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3658	2.3658	1.4948	1.4948	3.2181	3.2181	3.1981	3.1981	3.1981	3.1981
Si2	2.3658		3.9049	3.1910	3.1910	1.4917	5.2025	1.4922	1.4922	4.1982	4.1982
Si3	2.3658	3.9049		3.1910	3.1910	5.2025	1.4917	4.1982	4.1982	1.4922	1.4922
H4	1.4948	3.1910	3.1910		2.4165	3.6677	3.6677	3.6637	4.3903	4.3903	3.6637
H5	1.4948	3.1910	3.1910	2.4165		3.6677	3.6677	4.3903	3.6637	3.6637	4.3903
H6	3.2181	1.4917	5.2025	3.6677	3.6677		6.3614	2.4250	2.4250	5.5647	5.5647
H7	3.2181	5.2025	1.4917	3.6677	3.6677	6.3614		5.5647	5.5647	2.4250	2.4250
H8	3.1981	1.4922	4.1982	3.6637	4.3903	2.4250	5.5647		2.4216	4.6275	3.9434
H9	3.1981	1.4922	4.1982	4.3903	3.6637	2.4250	5.5647	2.4216		3.9434	4.6275
H10	3.1981	4.1982	1.4922	4.3903	3.6637	5.5647	2.4250	4.6275	3.9434		2.4216
H11	3.1981	4.1982	1.4922	3.6637	4.3903	5.5647	2.4250	3.9434	4.6275	2.4216

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	111.042	S1	S2	H8	109.913
S1	S2	H9	109.913	S1	S3	H7	111.042
S1	S3	H10	109.913	S1	S3	H11	109.913
S2	S1	S3	111.237	S2	S1	H4	109.419
S2	S1	H5	109.419	S3	S1	H4	109.419
S3	S1	H5	109.419	H4	S1	H5	107.861
H6	S2	H8	108.723	H6	S2	H9	108.723
H7	S3	H10	108.723	H7	S3	H11	108.723
H8	S2	H9	108.471	H10	S3	H11	108.471

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: CCSD/cc-pCVDZ

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/cc-pCVDZ

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)