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	hartrees
Energy at 0K	-873.288325
Energy at 298.15K	-873.295906
HF Energy	-873.288325
Nuclear repulsion energy	192.786871

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2195	2100	103.97
2	A₁	2190	2095	56.57
3	A₁	2166	2072	68.28
4	A₁	962	920	75.28
5	A₁	938	897	2.51
6	A₁	900	861	202.69
7	A₁	576	551	8.36
8	A₁	394	377	0.86
9	A₁	101	97	1.75
10	A₂	2190	2095	0.00
11	A₂	954	912	0.00
12	A₂	719	688	0.00
13	A₂	433	414	0.00
14	A₂	38	36	0.00
15	B₁	2195	2099	242.31
16	B₁	2171	2077	27.98
17	B₁	958	916	79.37
18	B₁	606	580	12.47
19	B₁	321	307	26.34
20	B₁	77	74	0.03
21	B₂	2194	2098	114.53
22	B₂	2185	2090	61.65
23	B₂	955	913	36.99
24	B₂	889	851	317.70
25	B₂	732	700	294.26
26	B₂	472	451	7.53
27	B₂	442	423	19.86

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.904
Si2	0.000	1.930	-0.424
Si3	0.000	-1.930	-0.424
H4	1.203	0.000	1.780
H5	-1.203	0.000	1.780
H6	0.000	3.156	0.414
H7	0.000	-3.156	0.414
H8	1.205	1.946	-1.293
H9	-1.205	1.946	-1.293
H10	-1.205	-1.946	-1.293
H11	1.205	-1.946	-1.293

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3429	2.3429	1.4882	1.4882	3.1941	3.1941	3.1731	3.1731	3.1731	3.1731
Si2	2.3429		3.8600	3.1673	3.1673	1.4853	5.1548	1.4858	1.4858	4.1515	4.1515
Si3	2.3429	3.8600		3.1673	3.1673	5.1548	1.4853	4.1515	4.1515	1.4858	1.4858
H4	1.4882	3.1673	3.1673		2.4056	3.6436	3.6436	3.6380	4.3627	4.3627	3.6380
H5	1.4882	3.1673	3.1673	2.4056		3.6436	3.6436	4.3627	3.6380	3.6380	4.3627
H6	3.1941	1.4853	5.1548	3.6436	3.6436		6.3125	2.4145	2.4145	5.5140	5.5140
H7	3.1941	5.1548	1.4853	3.6436	3.6436	6.3125		5.5140	5.5140	2.4145	2.4145
H8	3.1731	1.4858	4.1515	3.6380	4.3627	2.4145	5.5140		2.4103	4.5787	3.8930
H9	3.1731	1.4858	4.1515	4.3627	3.6380	2.4145	5.5140	2.4103		3.8930	4.5787
H10	3.1731	4.1515	1.4858	4.3627	3.6380	5.5140	2.4145	4.5787	3.8930		2.4103
H11	3.1731	4.1515	1.4858	3.6380	4.3627	5.5140	2.4145	3.8930	4.5787	2.4103

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	111.112	S1	S2	H8	109.918
S1	S2	H9	109.918	S1	S3	H7	111.112
S1	S3	H10	109.918	S1	S3	H11	109.918
S2	S1	S3	110.928	S2	S1	H4	109.501
S2	S1	H5	109.501	S3	S1	H4	109.501
S3	S1	H5	109.501	H4	S1	H5	107.853
H6	S2	H8	108.714	H6	S2	H9	108.714
H7	S3	H10	108.714	H7	S3	H11	108.714
H8	S2	H9	108.405	H10	S3	H11	108.405

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: wB97X-D/6-311G**

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	0.133
2	Si	0.350
3	Si	0.350
4	H	-0.088
5	H	-0.088
6	H	-0.105
7	H	-0.105
8	H	-0.112
9	H	-0.112
10	H	-0.112
11	H	-0.112

<r²>	206.955
(<r²>)^1/2	14.386

All results from a given calculation for Si3H8 (trisilane)

using model chemistry: wB97X-D/6-311G**

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)