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	hartrees
Energy at 0K	-861.613024
Energy at 298.15K	-861.621346
HF Energy	-861.500053
Nuclear repulsion energy	198.976390

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2788	2431	32.21
2	A₁	2735	2385	13.87
3	A₁	2733	2383	7.64
4	A₁	1198	1045	131.06
5	A₁	1186	1034	0.34
6	A₁	1126	981	243.26
7	A₁	708	618	20.65
8	A₁	509	443	3.86
9	A₁	141	123	2.91
10	A₂	2787	2430	0.00
11	A₂	1189	1037	0.00
12	A₂	902	786	0.00
13	A₂	589	514	0.00
14	A₂	73	64	0.00
15	B₁	2788	2431	53.44
16	B₁	2768	2413	15.12
17	B₁	1191	1038	120.13
18	B₁	737	643	21.56
19	B₁	441	385	42.67
20	B₁	83	72	0.03
21	B₂	2788	2431	12.99
22	B₂	2734	2384	18.22
23	B₂	1192	1039	37.83
24	B₂	1110	968	374.16
25	B₂	929	810	426.51
26	B₂	629	548	9.19
27	B₂	602	525	30.92

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.835
Si2	0.000	1.894	-0.394
Si3	0.000	-1.894	-0.394
H4	1.152	0.000	1.701
H5	-1.152	0.000	1.701
H6	0.000	3.062	0.446
H7	0.000	-3.062	0.446
H8	1.160	1.965	-1.242
H9	-1.160	1.965	-1.242
H10	-1.160	-1.965	-1.242
H11	1.160	-1.965	-1.242

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.2579	2.2579	1.4408	1.4408	3.0869	3.0869	3.0854	3.0854	3.0854	3.0854
Si2	2.2579		3.7882	3.0498	3.0498	1.4385	5.0270	1.4388	1.4388	4.1176	4.1176
Si3	2.2579	3.7882		3.0498	3.0498	5.0270	1.4385	4.1176	4.1176	1.4388	1.4388
H4	1.4408	3.0498	3.0498		2.3036	3.5042	3.5042	3.5382	4.2265	4.2265	3.5382
H5	1.4408	3.0498	3.0498	2.3036		3.5042	3.5042	4.2265	3.5382	3.5382	4.2265
H6	3.0869	1.4385	5.0270	3.5042	3.5042		6.1245	2.3234	2.3234	5.4280	5.4280
H7	3.0869	5.0270	1.4385	3.5042	3.5042	6.1245		5.4280	5.4280	2.3234	2.3234
H8	3.0854	1.4388	4.1176	3.5382	4.2265	2.3234	5.4280		2.3203	4.5632	3.9293
H9	3.0854	1.4388	4.1176	4.2265	3.5382	2.3234	5.4280	2.3203		3.9293	4.5632
H10	3.0854	4.1176	1.4388	4.2265	3.5382	5.4280	2.3234	4.5632	3.9293		2.3203
H11	3.0854	4.1176	1.4388	3.5382	4.2265	5.4280	2.3234	3.9293	4.5632	2.3203

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	111.321	S1	S2	H8	111.220
S1	S2	H9	111.220	S1	S3	H7	111.321
S1	S3	H10	111.220	S1	S3	H11	111.220
S2	S1	S3	114.046	S2	S1	H4	109.086
S2	S1	H5	109.086	S3	S1	H4	109.086
S3	S1	H5	109.086	H4	S1	H5	106.152
H6	S2	H8	107.707	H6	S2	H9	107.707
H7	S3	H10	107.707	H7	S3	H11	107.707
H8	S2	H9	107.479	H10	S3	H11	107.479

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: MP2/STO-3G

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/STO-3G

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)