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	hartrees
Energy at 0K	-873.330874
Energy at 298.15K	-873.338394
HF Energy	-873.330874
Nuclear repulsion energy	190.939225

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2197	2132	153.13
2	A₁	2188	2123	7.32
3	A₁	2167	2103	63.39
4	A₁	947	919	72.41
5	A₁	924	897	0.12
6	A₁	880	854	174.18
7	A₁	560	543	5.94
8	A₁	374	363	0.55
9	A₁	95	92	1.37
10	A₂	2195	2130	0.00
11	A₂	940	913	0.00
12	A₂	705	685	0.00
13	A₂	418	406	0.00
14	A₂	63	61	0.00
15	B₁	2201	2136	240.92
16	B₁	2176	2112	20.82
17	B₁	946	918	68.84
18	B₁	592	574	9.30
19	B₁	312	303	18.86
20	B₁	88	85	0.04
21	B₂	2195	2130	62.70
22	B₂	2184	2119	110.38
23	B₂	942	914	34.41
24	B₂	867	842	296.31
25	B₂	713	692	307.98
26	B₂	453	439	9.67
27	B₂	431	418	13.47

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.901
Si2	0.000	1.958	-0.424
Si3	0.000	-1.958	-0.424
H4	1.210	0.000	1.785
H5	-1.210	0.000	1.785
H6	0.000	3.183	0.436
H7	0.000	-3.183	0.436
H8	1.214	1.987	-1.297
H9	-1.214	1.987	-1.297
H10	-1.214	-1.987	-1.297
H11	1.214	-1.987	-1.297

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3647	2.3647	1.4986	1.4986	3.2164	3.2164	3.2023	3.2023	3.2023	3.2023
Si2	2.3647		3.9169	3.1906	3.1906	1.4957	5.2124	1.4958	1.4958	4.2190	4.2190
Si3	2.3647	3.9169		3.1906	3.1906	5.2124	1.4957	4.2190	4.2190	1.4958	1.4958
H4	1.4986	3.1906	3.1906		2.4206	3.6625	3.6625	3.6672	4.3960	4.3960	3.6672
H5	1.4986	3.1906	3.1906	2.4206		3.6625	3.6625	4.3960	3.6672	3.6672	4.3960
H6	3.2164	1.4957	5.2124	3.6625	3.6625		6.3651	2.4306	2.4306	5.5854	5.5854
H7	3.2164	5.2124	1.4957	3.6625	3.6625	6.3651		5.5854	5.5854	2.4306	2.4306
H8	3.2023	1.4958	4.2190	3.6672	4.3960	2.4306	5.5854		2.4279	4.6562	3.9732
H9	3.2023	1.4958	4.2190	4.3960	3.6672	2.4306	5.5854	2.4279		3.9732	4.6562
H10	3.2023	4.2190	1.4958	4.3960	3.6672	5.5854	2.4306	4.6562	3.9732		2.4279
H11	3.2023	4.2190	1.4958	3.6672	4.3960	5.5854	2.4306	3.9732	4.6562	2.4279

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	110.836	S1	S2	H8	110.050
S1	S2	H9	110.050	S1	S3	H7	110.836
S1	S3	H10	110.050	S1	S3	H11	110.050
S2	S1	S3	111.830	S2	S1	H4	109.299
S2	S1	H5	109.299	S3	S1	H4	109.299
S3	S1	H5	109.299	H4	S1	H5	107.725
H6	S2	H8	108.677	H6	S2	H9	108.677
H7	S3	H10	108.677	H7	S3	H11	108.677
H8	S2	H9	108.496	H10	S3	H11	108.496

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: B3LYP/aug-cc-pVDZ

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	-0.802
2	Si	-1.143
3	Si	-1.143
4	H	0.417
5	H	0.417
6	H	0.383
7	H	0.383
8	H	0.372
9	H	0.372
10	H	0.372
11	H	0.372

<r²>	211.577
(<r²>)^1/2	14.546

All results from a given calculation for Si3H8 (trisilane)

using model chemistry: B3LYP/aug-cc-pVDZ

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)