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	hartrees
Energy at 0K	-872.909337
Energy at 298.15K	-872.917081
HF Energy	-872.770794
Nuclear repulsion energy	191.882993

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2247	2144	158.54
2	A₁	2238	2136	12.89
3	A₁	2217	2115	74.53
4	A₁	971	927	81.21
5	A₁	946	903	3.10
6	A₁	908	866	204.26
7	A₁	578	551	8.04
8	A₁	386	369	0.72
9	A₁	99	95	1.65
10	A₂	2244	2142	0.00
11	A₂	962	918	0.00
12	A₂	725	691	0.00
13	A₂	431	412	0.00
14	A₂	91	87	0.00
15	B₁	2249	2146	259.67
16	B₁	2225	2123	29.16
17	B₁	967	923	83.42
18	B₁	608	580	11.40
19	B₁	324	309	24.59
20	B₁	107	103	0.06
21	B₂	2246	2143	74.69
22	B₂	2234	2131	110.25
23	B₂	963	919	38.35
24	B₂	896	855	332.80
25	B₂	737	703	325.73
26	B₂	467	446	10.39
27	B₂	445	425	17.05

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.896
Si2	0.000	1.951	-0.422
Si3	0.000	-1.951	-0.422
H4	1.202	0.000	1.773
H5	-1.202	0.000	1.773
H6	0.000	3.166	0.433
H7	0.000	-3.166	0.433
H8	1.205	1.979	-1.289
H9	-1.205	1.979	-1.289
H10	-1.205	-1.979	-1.289
H11	1.205	-1.979	-1.289

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3548	2.3548	1.4880	1.4880	3.1993	3.1993	3.1851	3.1851	3.1851	3.1851
Si2	2.3548		3.9029	3.1733	3.1733	1.4848	5.1879	1.4850	1.4850	4.2017	4.2017
Si3	2.3548	3.9029		3.1733	3.1733	5.1879	1.4848	4.2017	4.2017	1.4850	1.4850
H4	1.4880	3.1733	3.1733		2.4049	3.6417	3.6417	3.6456	4.3689	4.3689	3.6456
H5	1.4880	3.1733	3.1733	2.4049		3.6417	3.6417	4.3689	3.6456	3.6456	4.3689
H6	3.1993	1.4848	5.1879	3.6417	3.6417		6.3311	2.4134	2.4134	5.5575	5.5575
H7	3.1993	5.1879	1.4848	3.6417	3.6417	6.3311		5.5575	5.5575	2.4134	2.4134
H8	3.1851	1.4850	4.2017	3.6456	4.3689	2.4134	5.5575		2.4104	4.6346	3.9584
H9	3.1851	1.4850	4.2017	4.3689	3.6456	2.4134	5.5575	2.4104		3.9584	4.6346
H10	3.1851	4.2017	1.4850	4.3689	3.6456	5.5575	2.4134	4.6346	3.9584		2.4104
H11	3.1851	4.2017	1.4850	3.6456	4.3689	5.5575	2.4134	3.9584	4.6346	2.4104

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	110.822	S1	S2	H8	110.018
S1	S2	H9	110.018	S1	S3	H7	110.822
S1	S3	H10	110.018	S1	S3	H11	110.018
S2	S1	S3	111.930	S2	S1	H4	109.248
S2	S1	H5	109.248	S3	S1	H4	109.248
S3	S1	H5	109.248	H4	S1	H5	107.828
H6	S2	H8	108.713	H6	S2	H9	108.713
H7	S3	H10	108.713	H7	S3	H11	108.713
H8	S2	H9	108.504	H10	S3	H11	108.504

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: B2PLYP=FULL/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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All results from a given calculation for Si3H8 (trisilane)

using model chemistry: B2PLYP=FULL/TZVP

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)