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	hartrees
Energy at 0K	-871.846216
Energy at 298.15K	-871.853938
HF Energy	-871.475315
Nuclear repulsion energy	193.081557

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2276	2148	128.28
2	A₁	2266	2138	24.20
3	A₁	2246	2119	67.40
4	A₁	979	923	73.95
5	A₁	952	898	1.68
6	A₁	912	861	207.55
7	A₁	579	546	6.14
8	A₁	398	376	0.54
9	A₁	94	88	1.38
10	A₂	2272	2144	0.00
11	A₂	971	916	0.00
12	A₂	721	680	0.00
13	A₂	421	397	0.00
14	A₂	86	81	0.00
15	B₁	2277	2148	236.98
16	B₁	2255	2127	22.21
17	B₁	975	920	81.12
18	B₁	608	574	9.80
19	B₁	319	301	21.28
20	B₁	104	98	0.09
21	B₂	2275	2146	90.47
22	B₂	2262	2134	86.68
23	B₂	971	916	41.35
24	B₂	900	849	336.20
25	B₂	728	687	286.67
26	B₂	474	447	8.49
27	B₂	439	415	20.38

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.913
Si2	0.000	1.923	-0.428
Si3	0.000	-1.923	-0.428
H4	1.201	0.000	1.782
H5	-1.201	0.000	1.782
H6	0.000	3.152	0.397
H7	0.000	-3.152	0.397
H8	1.202	1.928	-1.291
H9	-1.202	1.928	-1.291
H10	-1.202	-1.928	-1.291
H11	1.202	-1.928	-1.291

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3443	2.3443	1.4827	1.4827	3.1935	3.1935	3.1654	3.1654	3.1654	3.1654
Si2	2.3443		3.8465	3.1662	3.1662	1.4792	5.1413	1.4797	1.4797	4.1261	4.1261
Si3	2.3443	3.8465		3.1662	3.1662	5.1413	1.4792	4.1261	4.1261	1.4797	1.4797
H4	1.4827	3.1662	3.1662		2.4020	3.6462	3.6462	3.6282	4.3516	4.3516	3.6282
H5	1.4827	3.1662	3.1662	2.4020		3.6462	3.6462	4.3516	3.6282	3.6282	4.3516
H6	3.1935	1.4792	5.1413	3.6462	3.6462		6.3030	2.4058	2.4058	5.4861	5.4861
H7	3.1935	5.1413	1.4792	3.6462	3.6462	6.3030		5.4861	5.4861	2.4058	2.4058
H8	3.1654	1.4797	4.1261	3.6282	4.3516	2.4058	5.4861		2.4033	4.5444	3.8568
H9	3.1654	1.4797	4.1261	4.3516	3.6282	2.4058	5.4861	2.4033		3.8568	4.5444
H10	3.1654	4.1261	1.4797	4.3516	3.6282	5.4861	2.4058	4.5444	3.8568		2.4033
H11	3.1654	4.1261	1.4797	3.6282	4.3516	5.4861	2.4058	3.8568	4.5444	2.4033

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	111.263	S1	S2	H8	109.663
S1	S2	H9	109.663	S1	S3	H7	111.263
S1	S3	H10	109.663	S1	S3	H11	109.663
S2	S1	S3	110.252	S2	S1	H4	109.591
S2	S1	H5	109.591	S3	S1	H4	109.591
S3	S1	H5	109.591	H4	S1	H5	108.194
H6	S2	H8	108.798	H6	S2	H9	108.798
H7	S3	H10	108.798	H7	S3	H11	108.798
H8	S2	H9	108.604	H10	S3	H11	108.604

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: MP2/6-311+G(3df,2p)

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: MP2/6-311+G(3df,2p)

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)