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	hartrees
Energy at 0K	-871.915304
Energy at 298.15K	-871.922995
HF Energy	-871.496260
Nuclear repulsion energy	193.152245

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2286	2171	123.89
2	A₁	2278	2163	26.76
3	A₁	2258	2145	65.24
4	A₁	977	928	75.18
5	A₁	950	902	1.31
6	A₁	912	866	204.94
7	A₁	577	548	6.10
8	A₁	398	378	0.55
9	A₁	93	89	1.38
10	A₂	2282	2167	0.00
11	A₂	969	921	0.00
12	A₂	719	683	0.00
13	A₂	421	400	0.00
14	A₂	80	76	0.00
15	B₁	2287	2172	236.71
16	B₁	2266	2152	19.35
17	B₁	974	925	81.64
18	B₁	606	575	9.94
19	B₁	316	301	20.89
20	B₁	99	94	0.08
21	B₂	2285	2170	93.40
22	B₂	2274	2159	80.62
23	B₂	970	921	41.34
24	B₂	898	853	338.11
25	B₂	728	691	273.88
26	B₂	473	449	8.10
27	B₂	438	416	20.29

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.914
Si2	0.000	1.922	-0.428
Si3	0.000	-1.922	-0.428
H4	1.201	0.000	1.781
H5	-1.201	0.000	1.781
H6	0.000	3.149	0.397
H7	0.000	-3.149	0.397
H8	1.201	1.925	-1.290
H9	-1.201	1.925	-1.290
H10	-1.201	-1.925	-1.290
H11	1.201	-1.925	-1.290

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3442	2.3442	1.4814	1.4814	3.1912	3.1912	3.1633	3.1633	3.1633	3.1633
Si2	2.3442		3.8446	3.1650	3.1650	1.4782	5.1380	1.4788	1.4788	4.1219	4.1219
Si3	2.3442	3.8446		3.1650	3.1650	5.1380	1.4782	4.1219	4.1219	1.4788	1.4788
H4	1.4814	3.1650	3.1650		2.4017	3.6434	3.6434	3.6247	4.3485	4.3485	3.6247
H5	1.4814	3.1650	3.1650	2.4017		3.6434	3.6434	4.3485	3.6247	3.6247	4.3485
H6	3.1912	1.4782	5.1380	3.6434	3.6434		6.2981	2.4057	2.4057	5.4806	5.4806
H7	3.1912	5.1380	1.4782	3.6434	3.6434	6.2981		5.4806	5.4806	2.4057	2.4057
H8	3.1633	1.4788	4.1219	3.6247	4.3485	2.4057	5.4806		2.4029	4.5386	3.8503
H9	3.1633	1.4788	4.1219	4.3485	3.6247	2.4057	5.4806	2.4029		3.8503	4.5386
H10	3.1633	4.1219	1.4788	4.3485	3.6247	5.4806	2.4057	4.5386	3.8503		2.4029
H11	3.1633	4.1219	1.4788	3.6247	4.3485	5.4806	2.4057	3.8503	4.5386	2.4029

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	111.174	S1	S2	H8	109.588
S1	S2	H9	109.588	S1	S3	H7	111.174
S1	S3	H10	109.588	S1	S3	H11	109.588
S2	S1	S3	110.177	S2	S1	H4	109.580
S2	S1	H5	109.580	S3	S1	H4	109.580
S3	S1	H5	109.580	H4	S1	H5	108.313
H6	S2	H8	108.887	H6	S2	H9	108.887
H7	S3	H10	108.887	H7	S3	H11	108.887
H8	S2	H9	108.673	H10	S3	H11	108.673

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: MP2/aug-cc-pVQZ

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-pVQZ

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)