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	hartrees
Energy at 0K	-872.970854
Energy at 298.15K	-872.978379
HF Energy	-872.970854
Nuclear repulsion energy	192.845986

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2214	2214	130.39
2	A₁	2204	2204	8.37
3	A₁	2184	2184	56.11
4	A₁	943	943	62.91
5	A₁	917	917	0.35
6	A₁	878	878	170.32
7	A₁	560	560	4.75
8	A₁	387	387	0.52
9	A₁	92	92	1.17
10	A₂	2212	2212	0.00
11	A₂	936	936	0.00
12	A₂	702	702	0.00
13	A₂	409	409	0.00
14	A₂	75	75	0.00
15	B₁	2217	2217	209.50
16	B₁	2194	2194	18.28
17	B₁	941	941	64.45
18	B₁	588	588	8.63
19	B₁	307	307	16.00
20	B₁	94	94	0.06
21	B₂	2212	2212	60.15
22	B₂	2200	2200	96.53
23	B₂	937	937	33.32
24	B₂	865	865	291.71
25	B₂	707	707	269.32
26	B₂	462	462	5.10
27	B₂	426	426	16.65

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.901
Si2	0.000	1.930	-0.423
Si3	0.000	-1.930	-0.423
H4	1.205	0.000	1.778
H5	-1.205	0.000	1.778
H6	0.000	3.156	0.418
H7	0.000	-3.156	0.418
H8	1.207	1.949	-1.292
H9	-1.207	1.949	-1.292
H10	-1.207	-1.949	-1.292
H11	1.207	-1.949	-1.292

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3403	2.3403	1.4901	1.4901	3.1930	3.1930	3.1725	3.1725	3.1725	3.1725
Si2	2.3403		3.8597	3.1653	3.1653	1.4872	5.1553	1.4872	1.4872	4.1545	4.1545
Si3	2.3403	3.8597		3.1653	3.1653	5.1553	1.4872	4.1545	4.1545	1.4872	1.4872
H4	1.4901	3.1653	3.1653		2.4094	3.6418	3.6418	3.6364	4.3634	4.3634	3.6364
H5	1.4901	3.1653	3.1653	2.4094		3.6418	3.6418	4.3634	3.6364	3.6364	4.3634
H6	3.1930	1.4872	5.1553	3.6418	3.6418		6.3127	2.4161	2.4161	5.5181	5.5181
H7	3.1930	5.1553	1.4872	3.6418	3.6418	6.3127		5.5181	5.5181	2.4161	2.4161
H8	3.1725	1.4872	4.1545	3.6364	4.3634	2.4161	5.5181		2.4137	4.5854	3.8988
H9	3.1725	1.4872	4.1545	4.3634	3.6364	2.4161	5.5181	2.4137		3.8988	4.5854
H10	3.1725	4.1545	1.4872	4.3634	3.6364	5.5181	2.4161	4.5854	3.8988		2.4137
H11	3.1725	4.1545	1.4872	3.6364	4.3634	5.5181	2.4161	3.8988	4.5854	2.4137

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	111.111	S1	S2	H8	109.957
S1	S2	H9	109.957	S1	S3	H7	111.111
S1	S3	H10	109.957	S1	S3	H11	109.957
S2	S1	S3	111.104	S2	S1	H4	109.447
S2	S1	H5	109.447	S3	S1	H4	109.447
S3	S1	H5	109.447	H4	S1	H5	107.889
H6	S2	H8	108.640	H6	S2	H9	108.640
H7	S3	H10	108.640	H7	S3	H11	108.640
H8	S2	H9	108.478	H10	S3	H11	108.478

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: HSEh1PBE/6-311+G(3df,2p)

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	0.166
2	Si	0.078
3	Si	0.078
4	H	-0.047
5	H	-0.047
6	H	-0.039
7	H	-0.039
8	H	-0.037
9	H	-0.037
10	H	-0.037
11	H	-0.037

<r²>	206.763
(<r²>)^1/2	14.379

All results from a given calculation for Si3H8 (trisilane)

using model chemistry: HSEh1PBE/6-311+G(3df,2p)

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)