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	hartrees
Energy at 0K	-871.878789
Energy at 298.15K	-871.886489
HF Energy	-871.483285
Nuclear repulsion energy	192.757663

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2278	2171	129.43
2	A₁	2266	2159	24.46
3	A₁	2247	2141	69.96
4	A₁	975	929	75.30
5	A₁	948	903	0.81
6	A₁	908	865	206.47
7	A₁	575	548	6.13
8	A₁	397	378	0.54
9	A₁	93	88	1.41
10	A₂	2273	2166	0.00
11	A₂	967	922	0.00
12	A₂	717	683	0.00
13	A₂	418	399	0.00
14	A₂	85	81	0.00
15	B₁	2279	2171	245.12
16	B₁	2257	2151	20.87
17	B₁	971	926	81.48
18	B₁	604	575	9.97
19	B₁	316	301	21.15
20	B₁	103	99	0.08
21	B₂	2277	2169	92.19
22	B₂	2262	2155	87.70
23	B₂	967	922	40.85
24	B₂	894	852	337.62
25	B₂	722	688	279.25
26	B₂	472	450	7.78
27	B₂	435	415	21.54

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.916
Si2	0.000	1.926	-0.429
Si3	0.000	-1.926	-0.429
H4	1.203	0.000	1.786
H5	-1.203	0.000	1.786
H6	0.000	3.156	0.395
H7	0.000	-3.156	0.395
H8	1.204	1.928	-1.293
H9	-1.204	1.928	-1.293
H10	-1.204	-1.928	-1.293
H11	1.204	-1.928	-1.293

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3491	2.3491	1.4845	1.4845	3.1991	3.1991	3.1699	3.1699	3.1699	3.1699
Si2	2.3491		3.8514	3.1723	3.1723	1.4811	5.1484	1.4817	1.4817	4.1287	4.1287
Si3	2.3491	3.8514		3.1723	3.1723	5.1484	1.4811	4.1287	4.1287	1.4817	1.4817
H4	1.4845	3.1723	3.1723		2.4056	3.6531	3.6531	3.6335	4.3581	4.3581	3.6335
H5	1.4845	3.1723	3.1723	2.4056		3.6531	3.6531	4.3581	3.6335	3.6335	4.3581
H6	3.1991	1.4811	5.1484	3.6531	3.6531		6.3126	2.4101	2.4101	5.4909	5.4909
H7	3.1991	5.1484	1.4811	3.6531	3.6531	6.3126		5.4909	5.4909	2.4101	2.4101
H8	3.1699	1.4817	4.1287	3.6335	4.3581	2.4101	5.4909		2.4070	4.5456	3.8560
H9	3.1699	1.4817	4.1287	4.3581	3.6335	2.4101	5.4909	2.4070		3.8560	4.5456
H10	3.1699	4.1287	1.4817	4.3581	3.6335	5.4909	2.4101	4.5456	3.8560		2.4070
H11	3.1699	4.1287	1.4817	3.6335	4.3581	5.4909	2.4101	3.8560	4.5456	2.4070

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	111.247	S1	S2	H8	109.594
S1	S2	H9	109.594	S1	S3	H7	111.247
S1	S3	H10	109.594	S1	S3	H11	109.594
S2	S1	S3	110.118	S2	S1	H4	109.614
S2	S1	H5	109.614	S3	S1	H4	109.614
S3	S1	H5	109.614	H4	S1	H5	108.239
H6	S2	H8	108.864	H6	S2	H9	108.864
H7	S3	H10	108.864	H7	S3	H11	108.864
H8	S2	H9	108.630	H10	S3	H11	108.630

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: MP2/aug-cc-pVTZ

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/aug-cc-pVTZ

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)