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	hartrees
Energy at 0K	-872.976161
Energy at 298.15K	-872.983664
HF Energy	-872.976161
Nuclear repulsion energy	192.487909

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2214	2214	130.50
2	A₁	2202	2202	9.67
3	A₁	2184	2184	58.13
4	A₁	941	941	64.27
5	A₁	916	916	0.12
6	A₁	876	876	169.14
7	A₁	558	558	4.91
8	A₁	386	386	0.54
9	A₁	93	93	1.21
10	A₂	2212	2212	0.00
11	A₂	933	933	0.00
12	A₂	701	701	0.00
13	A₂	410	410	0.00
14	A₂	76	76	0.00
15	B₁	2217	2217	215.72
16	B₁	2194	2194	17.50
17	B₁	938	938	64.58
18	B₁	587	587	8.82
19	B₁	308	308	16.34
20	B₁	95	95	0.06
21	B₂	2213	2213	62.99
22	B₂	2198	2198	95.52
23	B₂	935	935	32.96
24	B₂	863	863	288.94
25	B₂	705	705	270.12
26	B₂	462	462	5.14
27	B₂	427	427	16.79

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.903
Si2	0.000	1.934	-0.424
Si3	0.000	-1.934	-0.424
H4	1.206	0.000	1.782
H5	-1.206	0.000	1.782
H6	0.000	3.162	0.418
H7	0.000	-3.162	0.418
H8	1.209	1.954	-1.294
H9	-1.209	1.954	-1.294
H10	-1.209	-1.954	-1.294
H11	1.209	-1.954	-1.294

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3446	2.3446	1.4927	1.4927	3.1993	3.1993	3.1788	3.1788	3.1788	3.1788
Si2	2.3446		3.8670	3.1715	3.1715	1.4897	5.1650	1.4898	1.4898	4.1629	4.1629
Si3	2.3446	3.8670		3.1715	3.1715	5.1650	1.4897	4.1629	4.1629	1.4898	1.4898
H4	1.4927	3.1715	3.1715		2.4121	3.6490	3.6490	3.6445	4.3718	4.3718	3.6445
H5	1.4927	3.1715	3.1715	2.4121		3.6490	3.6490	4.3718	3.6445	3.6445	4.3718
H6	3.1993	1.4897	5.1650	3.6490	3.6490		6.3248	2.4197	2.4197	5.5289	5.5289
H7	3.1993	5.1650	1.4897	3.6490	3.6490	6.3248		5.5289	5.5289	2.4197	2.4197
H8	3.1788	1.4898	4.1629	3.6445	4.3718	2.4197	5.5289		2.4173	4.5948	3.9075
H9	3.1788	1.4898	4.1629	4.3718	3.6445	2.4197	5.5289	2.4173		3.9075	4.5948
H10	3.1788	4.1629	1.4898	4.3718	3.6445	5.5289	2.4197	4.5948	3.9075		2.4173
H11	3.1788	4.1629	1.4898	3.6445	4.3718	5.5289	2.4197	3.9075	4.5948	2.4173

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	111.137	S1	S2	H8	109.988
S1	S2	H9	109.988	S1	S3	H7	111.137
S1	S3	H10	109.988	S1	S3	H11	109.988
S2	S1	S3	111.105	S2	S1	H4	109.469
S2	S1	H5	109.469	S3	S1	H4	109.469
S3	S1	H5	109.469	H4	S1	H5	107.797
H6	S2	H8	108.611	H6	S2	H9	108.611
H7	S3	H10	108.611	H7	S3	H11	108.611
H8	S2	H9	108.443	H10	S3	H11	108.443

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: HSEh1PBE/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	-0.268
2	Si	0.128
3	Si	0.128
4	H	0.248
5	H	0.248
6	H	-0.184
7	H	-0.184
8	H	-0.029
9	H	-0.029
10	H	-0.029
11	H	-0.029

<r²>	207.490
(<r²>)^1/2	14.405

All results from a given calculation for Si3H8 (trisilane)

using model chemistry: HSEh1PBE/daug-cc-pVTZ

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)