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	hartrees
Energy at 0K	-873.042122
Energy at 298.15K	-873.050317
HF Energy	-872.806912
Nuclear repulsion energy	193.119937

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2246	2246	137.06
2	A₁	2239	2239	19.46
3	A₁	2216	2216	66.82
4	A₁	970	970	70.00
5	A₁	944	944	1.04
6	A₁	906	906	196.32
7	A₁	575	575	6.43
8	A₁	389	389	0.60
9	A₁	97	97	1.43
10	A₂	2242	2242	0.00
11	A₂	964	964	0.00
12	A₂	719	719	0.00
13	A₂	423	423	0.00
14	A₂	91	91	0.00
15	B₁	2247	2247	240.16
16	B₁	2224	2224	23.75
17	B₁	969	969	76.38
18	B₁	604	604	10.20
19	B₁	317	317	20.45
20	B₁	109	109	0.06
21	B₂	2244	2244	84.69
22	B₂	2234	2234	90.46
23	B₂	964	964	38.78
24	B₂	894	894	326.27
25	B₂	728	728	291.54
26	B₂	466	466	7.65
27	B₂	438	438	18.54

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.899
Si2	0.000	1.932	-0.422
Si3	0.000	-1.932	-0.422
H4	1.196	0.000	1.772
H5	-1.196	0.000	1.772
H6	0.000	3.150	0.414
H7	0.000	-3.150	0.414
H8	1.199	1.951	-1.286
H9	-1.199	1.951	-1.286
H10	-1.199	-1.951	-1.286
H11	1.199	-1.951	-1.286

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3406	2.3406	1.4810	1.4810	3.1871	3.1871	3.1656	3.1656	3.1656	3.1656
Si2	2.3406		3.8636	3.1588	3.1588	1.4778	5.1502	1.4782	1.4782	4.1547	4.1547
Si3	2.3406	3.8636		3.1588	3.1588	5.1502	1.4778	4.1547	4.1547	1.4782	1.4782
H4	1.4810	3.1588	3.1588		2.3930	3.6328	3.6328	3.6275	4.3473	4.3473	3.6275
H5	1.4810	3.1588	3.1588	2.3930		3.6328	3.6328	4.3473	3.6275	3.6275	4.3473
H6	3.1871	1.4778	5.1502	3.6328	3.6328		6.3000	2.4016	2.4016	5.5091	5.5091
H7	3.1871	5.1502	1.4778	3.6328	3.6328	6.3000		5.5091	5.5091	2.4016	2.4016
H8	3.1656	1.4782	4.1547	3.6275	4.3473	2.4016	5.5091		2.3985	4.5803	3.9021
H9	3.1656	1.4782	4.1547	4.3473	3.6275	2.4016	5.5091	2.3985		3.9021	4.5803
H10	3.1656	4.1547	1.4782	4.3473	3.6275	5.5091	2.4016	4.5803	3.9021		2.3985
H11	3.1656	4.1547	1.4782	3.6275	4.3473	5.5091	2.4016	3.9021	4.5803	2.3985

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	111.145	S1	S2	H8	109.922
S1	S2	H9	109.922	S1	S3	H7	111.145
S1	S3	H10	109.922	S1	S3	H11	109.922
S2	S1	S3	111.250	S2	S1	H4	109.434
S2	S1	H5	109.434	S3	S1	H4	109.434
S3	S1	H5	109.434	H4	S1	H5	107.784
H6	S2	H8	108.672	H6	S2	H9	108.672
H7	S3	H10	108.672	H7	S3	H11	108.672
H8	S2	H9	108.448	H10	S3	H11	108.448

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: B2PLYP=FULL/aug-cc-pV(T+d)Z

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: B2PLYP=FULL/aug-cc-pV(T+d)Z

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)