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	hartrees
Energy at 0K	-871.702755
Energy at 298.15K	-871.710472
HF Energy	-871.385837
Nuclear repulsion energy	192.661410

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2289	2148	173.21
2	A₁	2273	2133	20.58
3	A₁	2253	2114	94.64
4	A₁	973	913	74.47
5	A₁	949	891	12.24
6	A₁	916	860	194.78
7	A₁	587	550	8.19
8	A₁	405	380	0.82
9	A₁	101	95	1.62
10	A₂	2285	2144	0.00
11	A₂	962	903	0.00
12	A₂	732	687	0.00
13	A₂	430	404	0.00
14	A₂	79	74	0.00
15	B₁	2289	2148	301.82
16	B₁	2265	2126	37.99
17	B₁	966	907	85.65
18	B₁	619	581	10.35
19	B₁	319	300	22.84
20	B₁	100	94	0.06
21	B₂	2287	2146	91.13
22	B₂	2268	2128	122.14
23	B₂	964	905	35.54
24	B₂	907	851	322.01
25	B₂	753	706	323.03
26	B₂	488	458	3.88
27	B₂	451	424	24.26

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.887
Si2	0.000	1.940	-0.417
Si3	0.000	-1.940	-0.417
H4	1.206	0.000	1.769
H5	-1.206	0.000	1.769
H6	0.000	3.158	0.440
H7	0.000	-3.158	0.440
H8	1.209	1.971	-1.290
H9	-1.209	1.971	-1.290
H10	-1.209	-1.971	-1.290
H11	1.209	-1.971	-1.290

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3375	2.3375	1.4940	1.4940	3.1899	3.1899	3.1754	3.1754	3.1754	3.1754
Si2	2.3375		3.8791	3.1618	3.1618	1.4902	5.1695	1.4907	1.4907	4.1848	4.1848
Si3	2.3375	3.8791		3.1618	3.1618	5.1695	1.4902	4.1848	4.1848	1.4907	1.4907
H4	1.4940	3.1618	3.1618		2.4116	3.6327	3.6327	3.6388	4.3669	4.3669	3.6388
H5	1.4940	3.1618	3.1618	2.4116		3.6327	3.6327	4.3669	3.6388	3.6388	4.3669
H6	3.1899	1.4902	5.1695	3.6327	3.6327		6.3168	2.4212	2.4212	5.5463	5.5463
H7	3.1899	5.1695	1.4902	3.6327	3.6327	6.3168		5.5463	5.5463	2.4212	2.4212
H8	3.1754	1.4907	4.1848	3.6388	4.3669	2.4212	5.5463		2.4171	4.6238	3.9417
H9	3.1754	1.4907	4.1848	4.3669	3.6388	2.4212	5.5463	2.4171		3.9417	4.6238
H10	3.1754	4.1848	1.4907	4.3669	3.6388	5.5463	2.4212	4.6238	3.9417		2.4171
H11	3.1754	4.1848	1.4907	3.6388	4.3669	5.5463	2.4212	3.9417	4.6238	2.4171

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	110.950	S1	S2	H8	110.119
S1	S2	H9	110.119	S1	S3	H7	110.950
S1	S3	H10	110.119	S1	S3	H11	110.119
S2	S1	S3	112.147	S2	S1	H4	109.240
S2	S1	H5	109.240	S3	S1	H4	109.240
S3	S1	H5	109.240	H4	S1	H5	107.629
H6	S2	H8	108.630	H6	S2	H9	108.630
H7	S3	H10	108.630	H7	S3	H11	108.630
H8	S2	H9	108.327	H10	S3	H11	108.327

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: MP3=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: MP3=FULL/6-31G*

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)