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	hartrees
Energy at 0K	-871.722770
Energy at 298.15K	-871.730603
HF Energy	-871.397488
Nuclear repulsion energy	193.354324

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2338	2184	183.82
2	A₁	2323	2171	22.95
3	A₁	2301	2150	96.10
4	A₁	1002	936	85.86
5	A₁	977	912	15.24
6	A₁	942	880	221.05
7	A₁	596	557	9.31
8	A₁	409	382	0.84
9	A₁	101	94	1.69
10	A₂	2333	2180	0.00
11	A₂	991	926	0.00
12	A₂	744	695	0.00
13	A₂	435	406	0.00
14	A₂	83	77	0.00
15	B₁	2338	2185	322.57
16	B₁	2314	2162	40.18
17	B₁	995	930	101.19
18	B₁	628	587	11.19
19	B₁	322	301	25.71
20	B₁	105	98	0.08
21	B₂	2336	2183	99.95
22	B₂	2318	2166	120.90
23	B₂	992	927	42.49
24	B₂	932	871	366.93
25	B₂	765	715	338.23
26	B₂	491	459	4.94
27	B₂	457	427	26.13

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.889
Si2	0.000	1.936	-0.418
Si3	0.000	-1.936	-0.418
H4	1.196	0.000	1.760
H5	-1.196	0.000	1.760
H6	0.000	3.146	0.428
H7	0.000	-3.146	0.428
H8	1.198	1.960	-1.281
H9	-1.198	1.960	-1.281
H10	-1.198	-1.960	-1.281
H11	1.198	-1.960	-1.281

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3351	2.3351	1.4800	1.4800	3.1791	3.1791	3.1596	3.1596	3.1596	3.1596
Si2	2.3351		3.8711	3.1497	3.1497	1.4761	5.1510	1.4767	1.4767	4.1661	4.1661
Si3	2.3351	3.8711		3.1497	3.1497	5.1510	1.4761	4.1661	4.1661	1.4767	1.4767
H4	1.4800	3.1497	3.1497		2.3921	3.6195	3.6195	3.6181	4.3383	4.3383	3.6181
H5	1.4800	3.1497	3.1497	2.3921		3.6195	3.6195	4.3383	3.6181	3.6181	4.3383
H6	3.1791	1.4761	5.1510	3.6195	3.6195		6.2911	2.3998	2.3998	5.5156	5.5156
H7	3.1791	5.1510	1.4761	3.6195	3.6195	6.2911		5.5156	5.5156	2.3998	2.3998
H8	3.1596	1.4767	4.1661	3.6181	4.3383	2.3998	5.5156		2.3957	4.5943	3.9203
H9	3.1596	1.4767	4.1661	4.3383	3.6181	2.3998	5.5156	2.3957		3.9203	4.5943
H10	3.1596	4.1661	1.4767	4.3383	3.6181	5.5156	2.3998	4.5943	3.9203		2.3957
H11	3.1596	4.1661	1.4767	3.6181	4.3383	5.5156	2.3998	3.9203	4.5943	2.3957

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	111.045	S1	S2	H8	109.924
S1	S2	H9	109.924	S1	S3	H7	111.045
S1	S3	H10	109.924	S1	S3	H11	109.924
S2	S1	S3	111.972	S2	S1	H4	109.237
S2	S1	H5	109.237	S3	S1	H4	109.237
S3	S1	H5	109.237	H4	S1	H5	107.829
H6	S2	H8	108.732	H6	S2	H9	108.732
H7	S3	H10	108.732	H7	S3	H11	108.732
H8	S2	H9	108.428	H10	S3	H11	108.428

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: MP2=FULL/6-31G**

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=FULL/6-31G**

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)