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	hartrees
Energy at 0K	-873.350228
Energy at 298.15K	-873.357854
HF Energy	-873.350228
Nuclear repulsion energy	191.224066

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2215	2134	163.17
2	A₁	2206	2125	9.44
3	A₁	2185	2105	71.35
4	A₁	956	921	77.73
5	A₁	931	897	1.02
6	A₁	892	859	189.72
7	A₁	566	545	7.25
8	A₁	374	361	0.66
9	A₁	99	96	1.53
10	A₂	2213	2132	0.00
11	A₂	947	912	0.00
12	A₂	711	685	0.00
13	A₂	423	408	0.00
14	A₂	85	81	0.00
15	B₁	2218	2137	257.73
16	B₁	2194	2113	26.33
17	B₁	951	916	76.24
18	B₁	596	574	10.58
19	B₁	319	307	22.41
20	B₁	100	96	0.06
21	B₂	2213	2132	67.10
22	B₂	2201	2121	116.06
23	B₂	948	913	35.63
24	B₂	879	847	320.51
25	B₂	723	696	318.63
26	B₂	456	439	11.31
27	B₂	436	420	13.56

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.893
Si2	0.000	1.962	-0.421
Si3	0.000	-1.962	-0.421
H4	1.205	0.000	1.775
H5	-1.205	0.000	1.775
H6	0.000	3.176	0.442
H7	0.000	-3.176	0.442
H8	1.208	1.998	-1.291
H9	-1.208	1.998	-1.291
H10	-1.208	-1.998	-1.291
H11	1.208	-1.998	-1.291

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3614	2.3614	1.4926	1.4926	3.2078	3.2078	3.1975	3.1975	3.1975	3.1975
Si2	2.3614		3.9238	3.1813	3.1813	1.4896	5.2098	1.4897	1.4897	4.2306	4.2306
Si3	2.3614	3.9238		3.1813	3.1813	5.2098	1.4896	4.2306	4.2306	1.4897	1.4897
H4	1.4926	3.1813	3.1813		2.4092	3.6487	3.6487	3.6594	4.3834	4.3834	3.6594
H5	1.4926	3.1813	3.1813	2.4092		3.6487	3.6487	4.3834	3.6594	3.6594	4.3834
H6	3.2078	1.4896	5.2098	3.6487	3.6487		6.3518	2.4193	2.4193	5.5887	5.5887
H7	3.2078	5.2098	1.4896	3.6487	3.6487	6.3518		5.5887	5.5887	2.4193	2.4193
H8	3.1975	1.4897	4.2306	3.6594	4.3834	2.4193	5.5887		2.4170	4.6700	3.9959
H9	3.1975	1.4897	4.2306	4.3834	3.6594	2.4193	5.5887	2.4170		3.9959	4.6700
H10	3.1975	4.2306	1.4897	4.3834	3.6594	5.5887	2.4193	4.6700	3.9959		2.4170
H11	3.1975	4.2306	1.4897	3.6594	4.3834	5.5887	2.4193	3.9959	4.6700	2.4170

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	110.769	S1	S2	H8	110.197
S1	S2	H9	110.197	S1	S3	H7	110.769
S1	S3	H10	110.197	S1	S3	H11	110.197
S2	S1	S3	112.366	S2	S1	H4	109.187
S2	S1	H5	109.187	S3	S1	H4	109.187
S3	S1	H5	109.187	H4	S1	H5	107.612
H6	S2	H8	108.589	H6	S2	H9	108.589
H7	S3	H10	108.589	H7	S3	H11	108.589
H8	S2	H9	108.438	H10	S3	H11	108.438

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: B3LYPultrafine/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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Number	Element	Mulliken
1	Si	0.128
2	Si	0.277
3	Si	0.277
4	H	-0.077
5	H	-0.077
6	H	-0.084
7	H	-0.084
8	H	-0.090
9	H	-0.090
10	H	-0.090
11	H	-0.090

<r²>	211.492
(<r²>)^1/2	14.543

All results from a given calculation for Si3H8 (trisilane)

using model chemistry: B3LYPultrafine/TZVP

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)