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	hartrees
Energy at 0K	-872.903594
Energy at 298.15K	-872.911057
HF Energy	-872.903594
Nuclear repulsion energy	192.560388

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2220	2126	137.15
2	A₁	2210	2117	4.98
3	A₁	2192	2099	58.73
4	A₁	943	903	61.65
5	A₁	918	880	0.33
6	A₁	879	842	165.71
7	A₁	560	536	4.12
8	A₁	388	372	0.43
9	A₁	93	89	1.10
10	A₂	2218	2125	0.00
11	A₂	934	895	0.00
12	A₂	702	672	0.00
13	A₂	409	392	0.00
14	A₂	61	58	0.00
15	B₁	2223	2129	212.79
16	B₁	2201	2108	19.10
17	B₁	939	899	62.43
18	B₁	589	564	7.95
19	B₁	306	293	13.87
20	B₁	83	80	0.04
21	B₂	2218	2124	51.40
22	B₂	2206	2113	108.31
23	B₂	936	897	31.05
24	B₂	865	829	286.06
25	B₂	707	677	262.79
26	B₂	463	444	4.03
27	B₂	425	407	15.08

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.904
Si2	0.000	1.932	-0.424
Si3	0.000	-1.932	-0.424
H4	1.204	0.000	1.784
H5	-1.204	0.000	1.784
H6	0.000	3.161	0.416
H7	0.000	-3.161	0.416
H8	1.207	1.953	-1.295
H9	-1.207	1.953	-1.295
H10	-1.207	-1.953	-1.295
H11	1.207	-1.953	-1.295

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3443	2.3443	1.4914	1.4914	3.1989	3.1989	3.1792	3.1792	3.1792	3.1792
Si2	2.3443		3.8639	3.1711	3.1711	1.4888	5.1621	1.4887	1.4887	4.1608	4.1608
Si3	2.3443	3.8639		3.1711	3.1711	5.1621	1.4888	4.1608	4.1608	1.4887	1.4887
H4	1.4914	3.1711	3.1711		2.4085	3.6491	3.6491	3.6458	4.3712	4.3712	3.6458
H5	1.4914	3.1711	3.1711	2.4085		3.6491	3.6491	4.3712	3.6458	3.6458	4.3712
H6	3.1989	1.4888	5.1621	3.6491	3.6491		6.3228	2.4171	2.4171	5.5268	5.5268
H7	3.1989	5.1621	1.4888	3.6491	3.6491	6.3228		5.5268	5.5268	2.4171	2.4171
H8	3.1792	1.4887	4.1608	3.6458	4.3712	2.4171	5.5268		2.4146	4.5929	3.9069
H9	3.1792	1.4887	4.1608	4.3712	3.6458	2.4171	5.5268	2.4146		3.9069	4.5929
H10	3.1792	4.1608	1.4887	4.3712	3.6458	5.5268	2.4171	4.5929	3.9069		2.4146
H11	3.1792	4.1608	1.4887	3.6458	4.3712	5.5268	2.4171	3.9069	4.5929	2.4146

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	111.169	S1	S2	H8	110.073
S1	S2	H9	110.073	S1	S3	H7	111.169
S1	S3	H10	110.073	S1	S3	H11	110.073
S2	S1	S3	110.999	S2	S1	H4	109.518
S2	S1	H5	109.518	S3	S1	H4	109.518
S3	S1	H5	109.518	H4	S1	H5	107.705
H6	S2	H8	108.539	H6	S2	H9	108.539
H7	S3	H10	108.539	H7	S3	H11	108.539
H8	S2	H9	108.380	H10	S3	H11	108.380

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: HSEh1PBE/6-31G(2df,p)

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	-0.109
2	Si	-0.104
3	Si	-0.104
4	H	0.043
5	H	0.043
6	H	0.039
7	H	0.039
8	H	0.038
9	H	0.038
10	H	0.038
11	H	0.038

<r²>	206.945
(<r²>)^1/2	14.386

All results from a given calculation for Si3H8 (trisilane)

using model chemistry: HSEh1PBE/6-31G(2df,p)

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)