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	hartrees
Energy at 0K	-15.938819
Energy at 298.15K	-15.946398
HF Energy	-15.773279
Nuclear repulsion energy	33.719137

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2181	2128	188.42
2	A₁	2153	2101	13.93
3	A₁	2137	2086	112.51
4	A₁	938	915	86.48
5	A₁	911	889	11.16
6	A₁	878	857	205.21
7	A₁	569	556	9.99
8	A₁	375	366	0.60
9	A₁	98	96	1.76
10	A₂	2175	2123	0.00
11	A₂	925	902	0.00
12	A₂	706	689	0.00
13	A₂	429	418	0.00
14	A₂	66	64	0.00
15	B₁	2181	2128	341.52
16	B₁	2158	2106	36.85
17	B₁	930	908	90.03
18	B₁	597	583	11.54
19	B₁	321	313	28.10
20	B₁	87	85	0.11
21	B₂	2179	2126	99.32
22	B₂	2148	2096	120.59
23	B₂	929	907	33.58
24	B₂	868	847	338.69
25	B₂	725	707	363.92
26	B₂	463	452	13.39
27	B₂	440	430	17.63

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.909
Si2	0.000	1.995	-0.427
Si3	0.000	-1.995	-0.427
H4	1.224	0.000	1.803
H5	-1.224	0.000	1.803
H6	0.000	3.230	0.445
H7	0.000	-3.230	0.445
H8	1.226	2.030	-1.312
H9	-1.226	2.030	-1.312
H10	-1.226	-2.030	-1.312
H11	1.226	-2.030	-1.312

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.4006	2.4006	1.5163	1.5163	3.2626	3.2626	3.2490	3.2490	3.2490	3.2490
Si2	2.4006		3.9891	3.2332	3.2332	1.5120	5.2964	1.5127	1.5127	4.2991	4.2991
Si3	2.4006	3.9891		3.2332	3.2332	5.2964	1.5120	4.2991	4.2991	1.5127	1.5127
H4	1.5163	3.2332	3.2332		2.4481	3.7113	3.7113	3.7186	4.4534	4.4534	3.7186
H5	1.5163	3.2332	3.2332	2.4481		3.7113	3.7113	4.4534	3.7186	3.7186	4.4534
H6	3.2626	1.5120	5.2964	3.7113	3.7113		6.4591	2.4559	2.4559	5.6791	5.6791
H7	3.2626	5.2964	1.5120	3.7113	3.7113	6.4591		5.6791	5.6791	2.4559	2.4559
H8	3.2490	1.5127	4.2991	3.7186	4.4534	2.4559	5.6791		2.4528	4.7430	4.0595
H9	3.2490	1.5127	4.2991	4.4534	3.7186	2.4559	5.6791	2.4528		4.0595	4.7430
H10	3.2490	4.2991	1.5127	4.4534	3.7186	5.6791	2.4559	4.7430	4.0595		2.4528
H11	3.2490	4.2991	1.5127	3.7186	4.4534	5.6791	2.4559	4.0595	4.7430	2.4528

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	110.952	S1	S2	H8	110.175
S1	S2	H9	110.175	S1	S3	H7	110.952
S1	S3	H10	110.175	S1	S3	H11	110.175
S2	S1	S3	112.373	S2	S1	H4	109.174
S2	S1	H5	109.174	S3	S1	H4	109.174
S3	S1	H5	109.174	H4	S1	H5	107.656
H6	S2	H8	108.571	H6	S2	H9	108.571
H7	S3	H10	108.571	H7	S3	H11	108.571
H8	S2	H9	108.330	H10	S3	H11	108.330

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: MP2/CEP-121G

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: MP2/CEP-121G

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)