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	hartrees
Energy at 0K	-872.865105
Energy at 298.15K
HF Energy	-872.728095
Nuclear repulsion energy	192.621619

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2262	2262	140.83
2	A₁	2254	2254	7.75
3	A₁	2234	2234	63.60
4	A₁	973	973	68.31
5	A₁	949	949	1.72
6	A₁	911	911	182.30
7	A₁	576	576	5.22
8	A₁	389	389	0.46
9	A₁	98	98	1.23
10	A₂	2260	2260	0.00
11	A₂	964	964	0.00
12	A₂	720	720	0.00
13	A₂	424	424	0.00
14	A₂	81	81	0.00
15	B₁	2265	2265	220.99
16	B₁	2242	2242	25.00
17	B₁	968	968	72.04
18	B₁	606	606	8.68
19	B₁	319	319	16.62
20	B₁	100	100	0.04
21	B₂	2261	2261	58.77
22	B₂	2250	2250	105.99
23	B₂	965	965	34.15
24	B₂	897	897	315.91
25	B₂	733	733	282.20
26	B₂	468	468	6.50
27	B₂	441	441	14.93

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.900
Si2	0.000	1.938	-0.423
Si3	0.000	-1.938	-0.423
H4	1.198	0.000	1.775
H5	-1.198	0.000	1.775
H6	0.000	3.157	0.419
H7	0.000	-3.157	0.419
H8	1.201	1.964	-1.288
H9	-1.201	1.964	-1.288
H10	-1.201	-1.964	-1.288
H11	1.201	-1.964	-1.288

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3466	2.3466	1.4834	1.4834	3.1930	3.1930	3.1758	3.1758	3.1758	3.1758
Si2	2.3466		3.8770	3.1656	3.1656	1.4806	5.1641	1.4806	1.4806	4.1735	4.1735
Si3	2.3466	3.8770		3.1656	3.1656	5.1641	1.4806	4.1735	4.1735	1.4806	1.4806
H4	1.4834	3.1656	3.1656		2.3958	3.6382	3.6382	3.6383	4.3580	4.3580	3.6383
H5	1.4834	3.1656	3.1656	2.3958		3.6382	3.6382	4.3580	3.6383	3.6383	4.3580
H6	3.1930	1.4806	5.1641	3.6382	3.6382		6.3131	2.4042	2.4042	5.5293	5.5293
H7	3.1930	5.1641	1.4806	3.6382	3.6382	6.3131		5.5293	5.5293	2.4042	2.4042
H8	3.1758	1.4806	4.1735	3.6383	4.3580	2.4042	5.5293		2.4019	4.6035	3.9272
H9	3.1758	1.4806	4.1735	4.3580	3.6383	2.4042	5.5293	2.4019		3.9272	4.6035
H10	3.1758	4.1735	1.4806	4.3580	3.6383	5.5293	2.4042	4.6035	3.9272		2.4019
H11	3.1758	4.1735	1.4806	3.6383	4.3580	5.5293	2.4042	3.9272	4.6035	2.4019

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	111.052	S1	S2	H8	110.090
S1	S2	H9	110.090	S1	S3	H7	111.052
S1	S3	H10	110.090	S1	S3	H11	110.090
S2	S1	S3	111.392	S2	S1	H4	109.414
S2	S1	H5	109.414	S3	S1	H4	109.414
S3	S1	H5	109.414	H4	S1	H5	107.715
H6	S2	H8	108.564	H6	S2	H9	108.564
H7	S3	H10	108.564	H7	S3	H11	108.564
H8	S2	H9	108.415	H10	S3	H11	108.415

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: B2PLYP=FULLultrafine/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: B2PLYP=FULLultrafine/6-31G(2df,p)

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)