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	hartrees
Energy at 0K	-873.171125
Energy at 298.15K	-873.179147
HF Energy	-873.171125
Nuclear repulsion energy	192.795381

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2210	2210	116.11
2	A₁	2197	2197	7.67
3	A₁	2187	2187	71.95
4	A₁	962	962	49.67
5	A₁	947	947	11.42
6	A₁	895	895	196.00
7	A₁	580	580	7.96
8	A₁	390	390	0.66
9	A₁	102	102	1.56
10	A₂	2206	2206	0.00
11	A₂	962	962	0.00
12	A₂	731	731	0.00
13	A₂	445	445	0.00
14	A₂	148	148	0.00
15	B₁	2213	2213	234.82
16	B₁	2198	2198	1.10
17	B₁	967	967	68.57
18	B₁	614	614	9.16
19	B₁	362	362	17.17
20	B₁	165	165	0.00
21	B₂	2209	2209	77.42
22	B₂	2193	2193	85.99
23	B₂	951	951	45.24
24	B₂	887	887	260.10
25	B₂	733	733	331.99
26	B₂	471	471	12.80
27	B₂	448	448	2.07

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.924
Si2	0.000	1.915	-0.432
Si3	0.000	-1.915	-0.432
H4	1.209	0.000	1.799
H5	-1.209	0.000	1.799
H6	0.000	3.162	0.384
H7	0.000	-3.162	0.384
H8	1.210	1.907	-1.303
H9	-1.210	1.907	-1.303
H10	-1.210	-1.907	-1.303
H11	1.210	-1.907	-1.303

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3462	2.3462	1.4924	1.4924	3.2075	3.2075	3.1714	3.1714	3.1714	3.1714
Si2	2.3462		3.8293	3.1788	3.1788	1.4899	5.1414	1.4908	1.4908	4.1019	4.1019
Si3	2.3462	3.8293		3.1788	3.1788	5.1414	1.4899	4.1019	4.1019	1.4908	1.4908
H4	1.4924	3.1788	3.1788		2.4180	3.6689	3.6689	3.6409	4.3713	4.3713	3.6409
H5	1.4924	3.1788	3.1788	2.4180		3.6689	3.6689	4.3713	3.6409	3.6409	4.3713
H6	3.2075	1.4899	5.1414	3.6689	3.6689		6.3232	2.4254	2.4254	5.4768	5.4768
H7	3.2075	5.1414	1.4899	3.6689	3.6689	6.3232		5.4768	5.4768	2.4254	2.4254
H8	3.1714	1.4908	4.1019	3.6409	4.3713	2.4254	5.4768		2.4202	4.5165	3.8133
H9	3.1714	1.4908	4.1019	4.3713	3.6409	2.4254	5.4768	2.4202		3.8133	4.5165
H10	3.1714	4.1019	1.4908	4.3713	3.6409	5.4768	2.4254	4.5165	3.8133		2.4202
H11	3.1714	4.1019	1.4908	3.6409	4.3713	5.4768	2.4254	3.8133	4.5165	2.4202

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	111.509	S1	S2	H8	109.462
S1	S2	H9	109.462	S1	S3	H7	111.509
S1	S3	H10	109.462	S1	S3	H11	109.462
S2	S1	S3	109.387	S2	S1	H4	109.806
S2	S1	H5	109.806	S3	S1	H4	109.806
S3	S1	H5	109.806	H4	S1	H5	108.213
H6	S2	H8	108.915	H6	S2	H9	108.915
H7	S3	H10	108.915	H7	S3	H11	108.915
H8	S2	H9	108.524	H10	S3	H11	108.524

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: M06-2X/daug-cc-pVDZ

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	-1.844
2	Si	-1.799
3	Si	-1.799
4	H	1.115
5	H	1.115
6	H	0.578
7	H	0.578
8	H	0.514
9	H	0.514
10	H	0.514
11	H	0.514

<r²>	205.826
(<r²>)^1/2	14.347

All results from a given calculation for Si3H8 (trisilane)

using model chemistry: M06-2X/daug-cc-pVDZ

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)