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	hartrees
Energy at 0K	-868.933190
Energy at 298.15K
HF Energy	-868.933190
Nuclear repulsion energy	194.433174

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2257	2155	140.96
2	A₁	2245	2144	4.35
3	A₁	2227	2127	63.56
4	A₁	945	902	64.75
5	A₁	918	876	0.05
6	A₁	878	838	184.54
7	A₁	563	538	5.29
8	A₁	405	387	0.65
9	A₁	94	90	1.32
10	A₂	2255	2153	0.00
11	A₂	934	892	0.00
12	A₂	713	680	0.00
13	A₂	410	391	0.00
14	A₂	69i	66i	0.00
15	B₁	2260	2158	221.30
16	B₁	2239	2138	17.41
17	B₁	938	896	70.35
18	B₁	585	559	10.09
19	B₁	287	274	15.84
20	B₁	22i	21i	0.06
21	B₂	2255	2153	52.79
22	B₂	2240	2139	113.93
23	B₂	939	897	35.36
24	B₂	864	825	304.34
25	B₂	706	674	253.11
26	B₂	482	461	3.89
27	B₂	426	407	20.93

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.901
Si2	0.000	1.903	-0.422
Si3	0.000	-1.903	-0.422
H4	1.203	0.000	1.778
H5	-1.203	0.000	1.778
H6	0.000	3.139	0.404
H7	0.000	-3.139	0.404
H8	1.204	1.912	-1.292
H9	-1.204	1.912	-1.292
H10	-1.204	-1.912	-1.292
H11	1.204	-1.912	-1.292

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3174	2.3174	1.4887	1.4887	3.1777	3.1777	3.1494	3.1494	3.1494	3.1494
Si2	2.3174		3.8053	3.1475	3.1475	1.4863	5.1083	1.4860	1.4860	4.0942	4.0942
Si3	2.3174	3.8053		3.1475	3.1475	5.1083	1.4863	4.0942	4.0942	1.4860	1.4860
H4	1.4887	3.1475	3.1475		2.4063	3.6313	3.6313	3.6173	4.3451	4.3451	3.6173
H5	1.4887	3.1475	3.1475	2.4063		3.6313	3.6313	4.3451	3.6173	3.6173	4.3451
H6	3.1777	1.4863	5.1083	3.6313	3.6313		6.2770	2.4147	2.4147	5.4625	5.4625
H7	3.1777	5.1083	1.4863	3.6313	3.6313	6.2770		5.4625	5.4625	2.4147	2.4147
H8	3.1494	1.4860	4.0942	3.6173	4.3451	2.4147	5.4625		2.4083	4.5198	3.8247
H9	3.1494	1.4860	4.0942	4.3451	3.6173	2.4147	5.4625	2.4083		3.8247	4.5198
H10	3.1494	4.0942	1.4860	4.3451	3.6173	5.4625	2.4147	4.5198	3.8247		2.4083
H11	3.1494	4.0942	1.4860	3.6173	4.3451	5.4625	2.4147	3.8247	4.5198	2.4083

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	111.444	S1	S2	H8	109.867
S1	S2	H9	109.867	S1	S3	H7	111.444
S1	S3	H10	109.867	S1	S3	H11	109.867
S2	S1	S3	110.376	S2	S1	H4	109.648
S2	S1	H5	109.648	S3	S1	H4	109.648
S3	S1	H5	109.648	H4	S1	H5	107.833
H6	S2	H8	108.664	H6	S2	H9	108.664
H7	S3	H10	108.664	H7	S3	H11	108.664
H8	S2	H9	108.263	H10	S3	H11	108.263

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: B1B95/3-21G*

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	-0.054
2	Si	0.125
3	Si	0.125
4	H	-0.011
5	H	-0.011
6	H	-0.029
7	H	-0.029
8	H	-0.029
9	H	-0.029
10	H	-0.029
11	H	-0.029

<r²>	203.017
(<r²>)^1/2	14.248

All results from a given calculation for Si3H8 (trisilane)

using model chemistry: B1B95/3-21G*

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)