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	hartrees
Energy at 0K	-872.899369
Energy at 298.15K	-872.907146
HF Energy	-871.488604
Nuclear repulsion energy	193.301988

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2276	2276	124.75
2	A₁	2266	2266	24.70
3	A₁	2247	2247	70.35
4	A₁	980	980	76.17
5	A₁	955	955	1.91
6	A₁	915	915	201.29
7	A₁	578	578	6.33
8	A₁	397	397	0.57
9	A₁	95	95	1.46
10	A₂	2272	2272	0.00
11	A₂	972	972	0.00
12	A₂	722	722	0.00
13	A₂	426	426	0.00
14	A₂	91	91	0.00
15	B₁	2277	2277	234.84
16	B₁	2256	2256	20.67
17	B₁	976	976	79.73
18	B₁	608	608	9.70
19	B₁	323	323	21.20
20	B₁	105	105	0.08
21	B₂	2275	2275	87.69
22	B₂	2261	2261	87.24
23	B₂	972	972	38.73
24	B₂	903	903	331.21
25	B₂	732	732	291.95
26	B₂	475	475	8.13
27	B₂	444	444	20.37

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.906
Si2	0.000	1.925	-0.425
Si3	0.000	-1.925	-0.425
H4	1.197	0.000	1.776
H5	-1.197	0.000	1.776
H6	0.000	3.147	0.403
H7	0.000	-3.147	0.403
H8	1.199	1.937	-1.288
H9	-1.199	1.937	-1.288
H10	-1.199	-1.937	-1.288
H11	1.199	-1.937	-1.288

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3405	2.3405	1.4795	1.4795	3.1875	3.1875	3.1630	3.1630	3.1630	3.1630
Si2	2.3405		3.8502	3.1595	3.1595	1.4763	5.1397	1.4769	1.4769	4.1353	4.1353
Si3	2.3405	3.8502		3.1595	3.1595	5.1397	1.4763	4.1353	4.1353	1.4769	1.4769
H4	1.4795	3.1595	3.1595		2.3937	3.6366	3.6366	3.6251	4.3450	4.3450	3.6251
H5	1.4795	3.1595	3.1595	2.3937		3.6366	3.6366	4.3450	3.6251	3.6251	4.3450
H6	3.1875	1.4763	5.1397	3.6366	3.6366		6.2950	2.3997	2.3997	5.4911	5.4911
H7	3.1875	5.1397	1.4763	3.6366	3.6366	6.2950		5.4911	5.4911	2.3997	2.3997
H8	3.1630	1.4769	4.1353	3.6251	4.3450	2.3997	5.4911		2.3971	4.5565	3.8750
H9	3.1630	1.4769	4.1353	4.3450	3.6251	2.3997	5.4911	2.3971		3.8750	4.5565
H10	3.1630	4.1353	1.4769	4.3450	3.6251	5.4911	2.3997	4.5565	3.8750		2.3971
H11	3.1630	4.1353	1.4769	3.6251	4.3450	5.4911	2.3997	3.8750	4.5565	2.3971

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	111.233	S1	S2	H8	109.829
S1	S2	H9	109.829	S1	S3	H7	111.233
S1	S3	H10	109.829	S1	S3	H11	109.829
S2	S1	S3	110.672	S2	S1	H4	109.534
S2	S1	H5	109.534	S3	S1	H4	109.534
S3	S1	H5	109.534	H4	S1	H5	107.988
H6	S2	H8	108.700	H6	S2	H9	108.700
H7	S3	H10	108.700	H7	S3	H11	108.700
H8	S2	H9	108.492	H10	S3	H11	108.492

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: MP3=FULL/cc-pCVTZ

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: MP3=FULL/cc-pCVTZ

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)