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	hartrees
Energy at 0K	-873.235404
Energy at 298.15K
HF Energy	-873.235404
Nuclear repulsion energy	193.629309

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2222	2222	131.38
2	A₁	2213	2213	2.71
3	A₁	2200	2200	55.53
4	A₁	967	967	60.34
5	A₁	944	944	8.22
6	A₁	907	907	198.54
7	A₁	580	580	8.11
8	A₁	391	391	0.73
9	A₁	100	100	1.69
10	A₂	2220	2220	0.00
11	A₂	965	965	0.00
12	A₂	731	731	0.00
13	A₂	431	431	0.00
14	A₂	119	119	0.00
15	B₁	2226	2226	228.02
16	B₁	2210	2210	4.82
17	B₁	970	970	70.26
18	B₁	612	612	8.97
19	B₁	325	325	17.10
20	B₁	131	131	0.05
21	B₂	2220	2220	55.98
22	B₂	2208	2208	112.89
23	B₂	959	959	37.90
24	B₂	900	900	292.71
25	B₂	740	740	334.34
26	B₂	470	470	9.07
27	B₂	448	448	4.85

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.916
Si2	0.000	1.912	-0.428
Si3	0.000	-1.912	-0.428
H4	1.199	0.000	1.786
H5	-1.199	0.000	1.786
H6	0.000	3.146	0.386
H7	0.000	-3.146	0.386
H8	1.200	1.911	-1.293
H9	-1.200	1.911	-1.293
H10	-1.200	-1.911	-1.293
H11	1.200	-1.911	-1.293

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3372	2.3372	1.4815	1.4815	3.1907	3.1907	3.1575	3.1575	3.1575	3.1575
Si2	2.3372		3.8244	3.1617	3.1617	1.4785	5.1237	1.4793	1.4793	4.0994	4.0994
Si3	2.3372	3.8244		3.1617	3.1617	5.1237	1.4785	4.0994	4.0994	1.4793	1.4793
H4	1.4815	3.1617	3.1617		2.3983	3.6466	3.6466	3.6233	4.3458	4.3458	3.6233
H5	1.4815	3.1617	3.1617	2.3983		3.6466	3.6466	4.3458	3.6233	3.6233	4.3458
H6	3.1907	1.4785	5.1237	3.6466	3.6466		6.2928	2.4051	2.4051	5.4622	5.4622
H7	3.1907	5.1237	1.4785	3.6466	3.6466	6.2928		5.4622	5.4622	2.4051	2.4051
H8	3.1575	1.4793	4.0994	3.6233	4.3458	2.4051	5.4622		2.4008	4.5134	3.8219
H9	3.1575	1.4793	4.0994	4.3458	3.6233	2.4051	5.4622	2.4008		3.8219	4.5134
H10	3.1575	4.0994	1.4793	4.3458	3.6233	5.4622	2.4051	4.5134	3.8219		2.4008
H11	3.1575	4.0994	1.4793	3.6233	4.3458	5.4622	2.4051	3.8219	4.5134	2.4008

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	111.495	S1	S2	H8	109.593
S1	S2	H9	109.593	S1	S3	H7	111.495
S1	S3	H10	109.593	S1	S3	H11	109.593
S2	S1	S3	109.801	S2	S1	H4	109.736
S2	S1	H5	109.736	S3	S1	H4	109.736
S3	S1	H5	109.736	H4	S1	H5	108.072
H6	S2	H8	108.810	H6	S2	H9	108.810
H7	S3	H10	108.810	H7	S3	H11	108.810
H8	S2	H9	108.482	H10	S3	H11	108.482

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: M06-2X/aug-cc-pCVTZ

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	0.047
2	Si	0.509
3	Si	0.509
4	H	-0.089
5	H	-0.089
6	H	-0.178
7	H	-0.178
8	H	-0.133
9	H	-0.133
10	H	-0.133
11	H	-0.133

<r²>	204.588
(<r²>)^1/2	14.303

All results from a given calculation for Si3H8 (trisilane)

using model chemistry: M06-2X/aug-cc-pCVTZ

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)