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	hartrees
Energy at 0K	-873.297239
Energy at 298.15K	-873.304815
HF Energy	-873.297239
Nuclear repulsion energy	193.155335

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2217	2117	100.34
2	A₁	2212	2113	55.82
3	A₁	2185	2087	64.58
4	A₁	960	917	67.64
5	A₁	936	894	2.53
6	A₁	899	858	186.53
7	A₁	571	546	6.05
8	A₁	392	375	0.62
9	A₁	99	94	1.39
10	A₂	2212	2113	0.00
11	A₂	953	911	0.00
12	A₂	717	685	0.00
13	A₂	426	407	0.00
14	A₂	53	51	0.00
15	B₁	2217	2117	227.41
16	B₁	2189	2091	30.15
17	B₁	958	915	71.70
18	B₁	601	574	9.86
19	B₁	312	298	20.01
20	B₁	89	85	0.00
21	B₂	2215	2116	111.36
22	B₂	2208	2109	63.33
23	B₂	952	910	36.64
24	B₂	887	848	303.59
25	B₂	728	695	277.59
26	B₂	468	447	5.46
27	B₂	434	414	16.16

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.903
Si2	0.000	1.926	-0.424
Si3	0.000	-1.926	-0.424
H4	1.201	0.000	1.777
H5	-1.201	0.000	1.777
H6	0.000	3.150	0.412
H7	0.000	-3.150	0.412
H8	1.202	1.943	-1.290
H9	-1.202	1.943	-1.290
H10	-1.202	-1.943	-1.290
H11	1.202	-1.943	-1.290

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3390	2.3390	1.4847	1.4847	3.1880	3.1880	3.1669	3.1669	3.1669	3.1669
Si2	2.3390		3.8526	3.1613	3.1613	1.4817	5.1445	1.4821	1.4821	4.1430	4.1430
Si3	2.3390	3.8526		3.1613	3.1613	5.1445	1.4817	4.1430	4.1430	1.4821	1.4821
H4	1.4847	3.1613	3.1613		2.4011	3.6368	3.6368	3.6302	4.3535	4.3535	3.6302
H5	1.4847	3.1613	3.1613	2.4011		3.6368	3.6368	4.3535	3.6302	3.6302	4.3535
H6	3.1880	1.4817	5.1445	3.6368	3.6368		6.2999	2.4083	2.4083	5.5024	5.5024
H7	3.1880	5.1445	1.4817	3.6368	3.6368	6.2999		5.5024	5.5024	2.4083	2.4083
H8	3.1669	1.4821	4.1430	3.6302	4.3535	2.4083	5.5024		2.4050	4.5693	3.8851
H9	3.1669	1.4821	4.1430	4.3535	3.6302	2.4083	5.5024	2.4050		3.8851	4.5693
H10	3.1669	4.1430	1.4821	4.3535	3.6302	5.5024	2.4083	4.5693	3.8851		2.4050
H11	3.1669	4.1430	1.4821	3.6302	4.3535	5.5024	2.4083	3.8851	4.5693	2.4050

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	111.114	S1	S2	H8	109.914
S1	S2	H9	109.914	S1	S3	H7	111.114
S1	S3	H10	109.914	S1	S3	H11	109.914
S2	S1	S3	110.881	S2	S1	H4	109.496
S2	S1	H5	109.496	S3	S1	H4	109.496
S3	S1	H5	109.496	H4	S1	H5	107.921
H6	S2	H8	108.695	H6	S2	H9	108.695
H7	S3	H10	108.695	H7	S3	H11	108.695
H8	S2	H9	108.449	H10	S3	H11	108.449

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: wB97X-D/Def2TZVPP

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	0.060
2	Si	0.090
3	Si	0.090
4	H	-0.032
5	H	-0.032
6	H	-0.030
7	H	-0.030
8	H	-0.029
9	H	-0.029
10	H	-0.029
11	H	-0.029

<r²>	206.139
(<r²>)^1/2	14.358

All results from a given calculation for Si3H8 (trisilane)

using model chemistry: wB97X-D/Def2TZVPP

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)