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	hartrees
Energy at 0K	-872.931698
Energy at 298.15K	-872.939200
HF Energy	-872.931698
Nuclear repulsion energy	192.508762

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2219	2219	127.48
2	A₁	2207	2207	11.06
3	A₁	2189	2189	57.76
4	A₁	940	940	63.61
5	A₁	915	915	0.10
6	A₁	875	875	167.42
7	A₁	558	558	4.81
8	A₁	387	387	0.54
9	A₁	93	93	1.19
10	A₂	2216	2216	0.00
11	A₂	932	932	0.00
12	A₂	700	700	0.00
13	A₂	411	411	0.00
14	A₂	76	76	0.00
15	B₁	2221	2221	213.87
16	B₁	2199	2199	16.87
17	B₁	937	937	63.80
18	B₁	586	586	8.75
19	B₁	309	309	16.05
20	B₁	94	94	0.06
21	B₂	2217	2217	64.98
22	B₂	2203	2203	92.15
23	B₂	934	934	32.21
24	B₂	862	862	286.74
25	B₂	704	704	266.19
26	B₂	463	463	4.99
27	B₂	427	427	17.34

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.903
Si2	0.000	1.933	-0.424
Si3	0.000	-1.933	-0.424
H4	1.206	0.000	1.782
H5	-1.206	0.000	1.782
H6	0.000	3.162	0.419
H7	0.000	-3.162	0.419
H8	1.209	1.953	-1.295
H9	-1.209	1.953	-1.295
H10	-1.209	-1.953	-1.295
H11	1.209	-1.953	-1.295

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3441	2.3441	1.4931	1.4931	3.1989	3.1989	3.1788	3.1788	3.1788	3.1788
Si2	2.3441		3.8658	3.1712	3.1712	1.4901	5.1642	1.4903	1.4903	4.1621	4.1621
Si3	2.3441	3.8658		3.1712	3.1712	5.1642	1.4901	4.1621	4.1621	1.4903	1.4903
H4	1.4931	3.1712	3.1712		2.4129	3.6488	3.6488	3.6444	4.3722	4.3722	3.6444
H5	1.4931	3.1712	3.1712	2.4129		3.6488	3.6488	4.3722	3.6444	3.6444	4.3722
H6	3.1989	1.4901	5.1642	3.6488	3.6488		6.3243	2.4205	2.4205	5.5285	5.5285
H7	3.1989	5.1642	1.4901	3.6488	3.6488	6.3243		5.5285	5.5285	2.4205	2.4205
H8	3.1788	1.4903	4.1621	3.6444	4.3722	2.4205	5.5285		2.4182	4.5944	3.9065
H9	3.1788	1.4903	4.1621	4.3722	3.6444	2.4205	5.5285	2.4182		3.9065	4.5944
H10	3.1788	4.1621	1.4903	4.3722	3.6444	5.5285	2.4205	4.5944	3.9065		2.4182
H11	3.1788	4.1621	1.4903	3.6444	4.3722	5.5285	2.4205	3.9065	4.5944	2.4182

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	111.128	S1	S2	H8	109.994
S1	S2	H9	109.994	S1	S3	H7	111.128
S1	S3	H10	109.994	S1	S3	H11	109.994
S2	S1	S3	111.094	S2	S1	H4	109.468
S2	S1	H5	109.468	S3	S1	H4	109.468
S3	S1	H5	109.468	H4	S1	H5	107.810
H6	S2	H8	108.608	H6	S2	H9	108.608
H7	S3	H10	108.608	H7	S3	H11	108.608
H8	S2	H9	108.447	H10	S3	H11	108.447

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: PBE1PBE/daug-cc-pVTZ

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	-0.264
2	Si	0.097
3	Si	0.097
4	H	0.234
5	H	0.234
6	H	-0.167
7	H	-0.167
8	H	-0.016
9	H	-0.016
10	H	-0.016
11	H	-0.016

<r²>	207.396
(<r²>)^1/2	14.401

All results from a given calculation for Si3H8 (trisilane)

using model chemistry: PBE1PBE/daug-cc-pVTZ

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)