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	hartrees
Energy at 0K	-873.313641
Energy at 298.15K	-873.321489
HF Energy	-873.313641
Nuclear repulsion energy	192.230028

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2158	2158	145.03
2	A₁	2148	2148	9.82
3	A₁	2125	2125	67.53
4	A₁	931	931	63.39
5	A₁	905	905	0.49
6	A₁	869	869	176.51
7	A₁	551	551	4.93
8	A₁	374	374	0.51
9	A₁	93	93	1.23
10	A₂	2156	2156	0.00
11	A₂	923	923	0.00
12	A₂	688	688	0.00
13	A₂	404	404	0.00
14	A₂	47	47	0.00
15	B₁	2162	2162	239.04
16	B₁	2136	2136	24.07
17	B₁	928	928	66.01
18	B₁	578	578	8.69
19	B₁	301	301	17.20
20	B₁	81	81	0.03
21	B₂	2157	2157	71.66
22	B₂	2143	2143	107.96
23	B₂	924	924	36.82
24	B₂	855	855	298.41
25	B₂	696	696	261.25
26	B₂	446	446	7.66
27	B₂	417	417	13.90

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.915
Si2	0.000	1.931	-0.428
Si3	0.000	-1.931	-0.428
H4	1.207	0.000	1.793
H5	-1.207	0.000	1.793
H6	0.000	3.170	0.398
H7	0.000	-3.170	0.398
H8	1.208	1.938	-1.299
H9	-1.208	1.938	-1.299
H10	-1.208	-1.938	-1.299
H11	1.208	-1.938	-1.299

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3519	2.3519	1.4925	1.4925	3.2120	3.2120	3.1812	3.1812	3.1812	3.1812
Si2	2.3519		3.8615	3.1807	3.1807	1.4897	5.1674	1.4897	1.4897	4.1460	4.1460
Si3	2.3519	3.8615		3.1807	3.1807	5.1674	1.4897	4.1460	4.1460	1.4897	1.4897
H4	1.4925	3.1807	3.1807		2.4140	3.6676	3.6676	3.6493	4.3763	4.3763	3.6493
H5	1.4925	3.1807	3.1807	2.4140		3.6676	3.6676	4.3763	3.6493	3.6493	4.3763
H6	3.2120	1.4897	5.1674	3.6676	3.6676		6.3403	2.4207	2.4207	5.5172	5.5172
H7	3.2120	5.1674	1.4897	3.6676	3.6676	6.3403		5.5172	5.5172	2.4207	2.4207
H8	3.1812	1.4897	4.1460	3.6493	4.3763	2.4207	5.5172		2.4170	4.5684	3.8767
H9	3.1812	1.4897	4.1460	4.3763	3.6493	2.4207	5.5172	2.4170		3.8767	4.5684
H10	3.1812	4.1460	1.4897	4.3763	3.6493	5.5172	2.4207	4.5684	3.8767		2.4170
H11	3.1812	4.1460	1.4897	3.6493	4.3763	5.5172	2.4207	3.8767	4.5684	2.4170

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	111.481	S1	S2	H8	109.761
S1	S2	H9	109.761	S1	S3	H7	111.481
S1	S3	H10	109.761	S1	S3	H11	109.761
S2	S1	S3	110.355	S2	S1	H4	109.625
S2	S1	H5	109.625	S3	S1	H4	109.625
S3	S1	H5	109.625	H4	S1	H5	107.945
H6	S2	H8	108.673	H6	S2	H9	108.673
H7	S3	H10	108.673	H7	S3	H11	108.673
H8	S2	H9	108.428	H10	S3	H11	108.428

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: B97D3/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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Number	Element	Mulliken
1	Si	0.491
2	Si	0.679
3	Si	0.679
4	H	-0.216
5	H	-0.216
6	H	-0.276
7	H	-0.276
8	H	-0.216
9	H	-0.216
10	H	-0.216
11	H	-0.216

<r²>	207.703
(<r²>)^1/2	14.412

All results from a given calculation for Si3H8 (trisilane)

using model chemistry: B97D3/aug-cc-pV(T+d)Z

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)