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	hartrees
Energy at 0K	-872.119229
Energy at 298.15K	-872.127008
HF Energy	-871.482022
Nuclear repulsion energy	193.316184

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2260	2143	126.39
2	A₁	2248	2132	23.12
3	A₁	2230	2115	76.13
4	A₁	979	928	76.12
5	A₁	954	905	0.67
6	A₁	914	867	200.50
7	A₁	580	550	6.42
8	A₁	402	381	0.61
9	A₁	95	90	1.48
10	A₂	2255	2138	0.00
11	A₂	971	920	0.00
12	A₂	721	684	0.00
13	A₂	424	402	0.00
14	A₂	94	89	0.00
15	B₁	2260	2143	243.48
16	B₁	2240	2124	20.30
17	B₁	975	925	78.27
18	B₁	609	577	9.55
19	B₁	323	306	22.05
20	B₁	110	104	0.09
21	B₂	2258	2141	92.47
22	B₂	2243	2127	86.54
23	B₂	971	921	37.18
24	B₂	901	854	325.01
25	B₂	734	696	281.24
26	B₂	477	453	7.07
27	B₂	442	419	23.26

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.912
Si2	0.000	1.919	-0.427
Si3	0.000	-1.919	-0.427
H4	1.201	0.000	1.783
H5	-1.201	0.000	1.783
H6	0.000	3.150	0.395
H7	0.000	-3.150	0.395
H8	1.202	1.925	-1.293
H9	-1.202	1.925	-1.293
H10	-1.202	-1.925	-1.293
H11	1.202	-1.925	-1.293

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3396	2.3396	1.4836	1.4836	3.1922	3.1922	3.1640	3.1640	3.1640	3.1640
Si2	2.3396		3.8373	3.1634	3.1634	1.4806	5.1350	1.4812	1.4812	4.1192	4.1192
Si3	2.3396	3.8373		3.1634	3.1634	5.1350	1.4806	4.1192	4.1192	1.4812	1.4812
H4	1.4836	3.1634	3.1634		2.4024	3.6458	3.6458	3.6284	4.3519	4.3519	3.6284
H5	1.4836	3.1634	3.1634	2.4024		3.6458	3.6458	4.3519	3.6284	3.6284	4.3519
H6	3.1922	1.4806	5.1350	3.6458	3.6458		6.3002	2.4070	2.4070	5.4818	5.4818
H7	3.1922	5.1350	1.4806	3.6458	3.6458	6.3002		5.4818	5.4818	2.4070	2.4070
H8	3.1640	1.4812	4.1192	3.6284	4.3519	2.4070	5.4818		2.4035	4.5388	3.8502
H9	3.1640	1.4812	4.1192	4.3519	3.6284	2.4070	5.4818	2.4035		3.8502	4.5388
H10	3.1640	4.1192	1.4812	4.3519	3.6284	5.4818	2.4070	4.5388	3.8502		2.4035
H11	3.1640	4.1192	1.4812	3.6284	4.3519	5.4818	2.4070	3.8502	4.5388	2.4035

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	111.364	S1	S2	H8	109.761
S1	S2	H9	109.761	S1	S3	H7	111.364
S1	S3	H10	109.761	S1	S3	H11	109.761
S2	S1	S3	110.181	S2	S1	H4	109.627
S2	S1	H5	109.627	S3	S1	H4	109.627
S3	S1	H5	109.627	H4	S1	H5	108.118
H6	S2	H8	108.719	H6	S2	H9	108.719
H7	S3	H10	108.719	H7	S3	H11	108.719
H8	S2	H9	108.458	H10	S3	H11	108.458

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: CCSD=FULL/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: CCSD=FULL/cc-pVTZ

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)