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	hartrees
Energy at 0K	-873.273064
Energy at 298.15K	-873.280549
HF Energy	-873.273064
Nuclear repulsion energy	190.483357

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2160	2152	152.37
2	A₁	2148	2140	4.86
3	A₁	2124	2117	64.32
4	A₁	930	927	68.13
5	A₁	905	902	0.24
6	A₁	867	864	167.20
7	A₁	548	546	5.83
8	A₁	360	359	0.50
9	A₁	96	95	1.27
10	A₂	2159	2151	0.00
11	A₂	922	919	0.00
12	A₂	691	689	0.00
13	A₂	413	411	0.00
14	A₂	84	84	0.00
15	B₁	2164	2156	229.31
16	B₁	2135	2128	28.95
17	B₁	927	924	66.28
18	B₁	577	575	9.35
19	B₁	310	309	17.29
20	B₁	100	100	0.03
21	B₂	2158	2151	51.90
22	B₂	2143	2136	119.92
23	B₂	923	920	31.85
24	B₂	853	850	306.02
25	B₂	701	698	302.25
26	B₂	441	440	11.13
27	B₂	422	420	8.47

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.892
Si2	0.000	1.974	-0.420
Si3	0.000	-1.974	-0.420
H4	1.206	0.000	1.779
H5	-1.206	0.000	1.779
H6	0.000	3.189	0.448
H7	0.000	-3.189	0.448
H8	1.211	2.017	-1.294
H9	-1.211	2.017	-1.294
H10	-1.211	-2.017	-1.294
H11	1.211	-2.017	-1.294

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3699	2.3699	1.4971	1.4971	3.2195	3.2195	3.2106	3.2106	3.2106	3.2106
Si2	2.3699		3.9472	3.1915	3.1915	1.4936	5.2349	1.4935	1.4935	4.2603	4.2603
Si3	2.3699	3.9472		3.1915	3.1915	5.2349	1.4936	4.2603	4.2603	1.4935	1.4935
H4	1.4971	3.1915	3.1915		2.4119	3.6597	3.6597	3.6751	4.3985	4.3985	3.6751
H5	1.4971	3.1915	3.1915	2.4119		3.6597	3.6597	4.3985	3.6751	3.6751	4.3985
H6	3.2195	1.4936	5.2349	3.6597	3.6597		6.3776	2.4236	2.4236	5.6210	5.6210
H7	3.2195	5.2349	1.4936	3.6597	3.6597	6.3776		5.6210	5.6210	2.4236	2.4236
H8	3.2106	1.4935	4.2603	3.6751	4.3985	2.4236	5.6210		2.4215	4.7043	4.0332
H9	3.2106	1.4935	4.2603	4.3985	3.6751	2.4236	5.6210	2.4215		4.0332	4.7043
H10	3.2106	4.2603	1.4935	4.3985	3.6751	5.6210	2.4236	4.7043	4.0332		2.4215
H11	3.2106	4.2603	1.4935	3.6751	4.3985	5.6210	2.4236	4.0332	4.7043	2.4215

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	110.832	S1	S2	H8	110.348
S1	S2	H9	110.348	S1	S3	H7	110.832
S1	S3	H10	110.348	S1	S3	H11	110.348
S2	S1	S3	112.770	S2	S1	H4	109.150
S2	S1	H5	109.150	S3	S1	H4	109.150
S3	S1	H5	109.150	H4	S1	H5	107.322
H6	S2	H8	108.456	H6	S2	H9	108.456
H7	S3	H10	108.456	H7	S3	H11	108.456
H8	S2	H9	108.328	H10	S3	H11	108.328

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: BLYP/aug-cc-pVTZ

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	0.466
2	Si	0.687
3	Si	0.687
4	H	-0.210
5	H	-0.210
6	H	-0.267
7	H	-0.267
8	H	-0.221
9	H	-0.221
10	H	-0.221
11	H	-0.221

<r²>	213.416
(<r²>)^1/2	14.609

All results from a given calculation for Si3H8 (trisilane)

using model chemistry: BLYP/aug-cc-pVTZ

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)