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	hartrees
Energy at 0K	-872.742216
Energy at 298.15K	-872.749451
HF Energy	-872.742216
Nuclear repulsion energy	191.338053

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2184	2153	177.50
2	A₁	2169	2138	5.74
3	A₁	2149	2119	72.03
4	A₁	912	899	61.20
5	A₁	887	874	0.10
6	A₁	848	836	151.12
7	A₁	543	535	4.78
8	A₁	379	373	0.59
9	A₁	91	90	1.09
10	A₂	2183	2152	0.00
11	A₂	902	889	0.00
12	A₂	689	679	0.00
13	A₂	403	398	0.00
14	A₂	43	42	0.00
15	B₁	2188	2157	279.24
16	B₁	2161	2130	29.13
17	B₁	906	893	58.52
18	B₁	571	563	8.40
19	B₁	298	293	13.46
20	B₁	71	70	0.06
21	B₂	2182	2151	62.05
22	B₂	2164	2133	130.17
23	B₂	906	893	26.75
24	B₂	834	822	270.66
25	B₂	690	680	278.34
26	B₂	458	451	3.04
27	B₂	417	411	14.32

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.891
Si2	0.000	1.953	-0.419
Si3	0.000	-1.953	-0.419
H4	1.210	0.000	1.786
H5	-1.210	0.000	1.786
H6	0.000	3.183	0.443
H7	0.000	-3.183	0.443
H8	1.216	1.994	-1.300
H9	-1.216	1.994	-1.300
H10	-1.216	-1.994	-1.300
H11	1.216	-1.994	-1.300

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3519	2.3519	1.5050	1.5050	3.2145	3.2145	3.2022	3.2022	3.2022	3.2022
Si2	2.3519		3.9060	3.1847	3.1847	1.5020	5.2078	1.5018	1.5018	4.2226	4.2226
Si3	2.3519	3.9060		3.1847	3.1847	5.2078	1.5020	4.2226	4.2226	1.5018	1.5018
H4	1.5050	3.1847	3.1847		2.4201	3.6608	3.6608	3.6741	4.4027	4.4027	3.6741
H5	1.5050	3.1847	3.1847	2.4201		3.6608	3.6608	4.4027	3.6741	3.6741	4.4027
H6	3.2145	1.5020	5.2078	3.6608	3.6608		6.3661	2.4350	2.4350	5.5958	5.5958
H7	3.2145	5.2078	1.5020	3.6608	3.6608	6.3661		5.5958	5.5958	2.4350	2.4350
H8	3.2022	1.5018	4.2226	3.6741	4.4027	2.4350	5.5958		2.4317	4.6704	3.9874
H9	3.2022	1.5018	4.2226	4.4027	3.6741	2.4350	5.5958	2.4317		3.9874	4.6704
H10	3.2022	4.2226	1.5018	4.4027	3.6741	5.5958	2.4350	4.6704	3.9874		2.4317
H11	3.2022	4.2226	1.5018	3.6741	4.4027	5.5958	2.4350	3.9874	4.6704	2.4317

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	111.119	S1	S2	H8	110.440
S1	S2	H9	110.440	S1	S3	H7	111.119
S1	S3	H10	110.440	S1	S3	H11	110.440
S2	S1	S3	112.274	S2	S1	H4	109.350
S2	S1	H5	109.350	S3	S1	H4	109.350
S3	S1	H5	109.350	H4	S1	H5	107.025
H6	S2	H8	108.317	H6	S2	H9	108.317
H7	S3	H10	108.317	H7	S3	H11	108.317
H8	S2	H9	108.113	H10	S3	H11	108.113

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: PBEPBE/6-31G*

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	-0.025
2	Si	0.084
3	Si	0.084
4	H	-0.011
5	H	-0.011
6	H	-0.020
7	H	-0.020
8	H	-0.020
9	H	-0.020
10	H	-0.020
11	H	-0.020

<r²>	210.077
(<r²>)^1/2	14.494

All results from a given calculation for Si3H8 (trisilane)

using model chemistry: PBEPBE/6-31G*

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)