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	hartrees
Energy at 0K	-871.939942
Energy at 298.15K	-871.947724
HF Energy	-871.451723
Nuclear repulsion energy	191.936649

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2257	2138	149.08
2	A₁	2247	2129	18.39
3	A₁	2227	2110	82.81
4	A₁	971	920	83.43
5	A₁	949	900	12.82
6	A₁	913	866	212.53
7	A₁	584	553	9.41
8	A₁	395	375	0.87
9	A₁	101	95	1.85
10	A₂	2253	2135	0.00
11	A₂	961	910	0.00
12	A₂	730	691	0.00
13	A₂	438	415	0.00
14	A₂	86	82	0.00
15	B₁	2258	2139	262.71
16	B₁	2236	2119	30.20
17	B₁	965	914	91.06
18	B₁	615	583	12.22
19	B₁	329	311	28.05
20	B₁	104	98	0.10
21	B₂	2255	2137	83.51
22	B₂	2242	2124	103.36
23	B₂	962	912	36.92
24	B₂	904	857	343.90
25	B₂	745	706	343.38
26	B₂	477	452	9.39
27	B₂	452	428	22.93

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.898
Si2	0.000	1.951	-0.422
Si3	0.000	-1.951	-0.422
H4	1.202	0.000	1.773
H5	-1.202	0.000	1.773
H6	0.000	3.164	0.429
H7	0.000	-3.164	0.429
H8	1.204	1.975	-1.289
H9	-1.204	1.975	-1.289
H10	-1.204	-1.975	-1.289
H11	1.204	-1.975	-1.289

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3556	2.3556	1.4862	1.4862	3.1989	3.1989	3.1831	3.1831	3.1831	3.1831
Si2	2.3556		3.9010	3.1729	3.1729	1.4828	5.1852	1.4833	1.4833	4.1962	4.1962
Si3	2.3556	3.9010		3.1729	3.1729	5.1852	1.4828	4.1962	4.1962	1.4833	1.4833
H4	1.4862	3.1729	3.1729		2.4038	3.6416	3.6416	3.6430	4.3656	4.3656	3.6430
H5	1.4862	3.1729	3.1729	2.4038		3.6416	3.6416	4.3656	3.6430	3.6430	4.3656
H6	3.1989	1.4828	5.1852	3.6416	3.6416		6.3286	2.4115	2.4115	5.5508	5.5508
H7	3.1989	5.1852	1.4828	3.6416	3.6416	6.3286		5.5508	5.5508	2.4115	2.4115
H8	3.1831	1.4833	4.1962	3.6430	4.3656	2.4115	5.5508		2.4077	4.6257	3.9497
H9	3.1831	1.4833	4.1962	4.3656	3.6430	2.4115	5.5508	2.4077		3.9497	4.6257
H10	3.1831	4.1962	1.4833	4.3656	3.6430	5.5508	2.4115	4.6257	3.9497		2.4077
H11	3.1831	4.1962	1.4833	3.6430	4.3656	5.5508	2.4115	3.9497	4.6257	2.4077

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	110.838	S1	S2	H8	109.938
S1	S2	H9	109.938	S1	S3	H7	110.838
S1	S3	H10	109.938	S1	S3	H11	109.938
S2	S1	S3	111.794	S2	S1	H4	109.258
S2	S1	H5	109.258	S3	S1	H4	109.258
S3	S1	H5	109.258	H4	S1	H5	107.934
H6	S2	H8	108.785	H6	S2	H9	108.785
H7	S3	H10	108.785	H7	S3	H11	108.785
H8	S2	H9	108.506	H10	S3	H11	108.506

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: CCSD=FULL/TZVP

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/TZVP

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)