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	hartrees
Energy at 0K	-16.358564
Energy at 298.15K	-16.366793
HF Energy	-16.358564
Nuclear repulsion energy	33.922621

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2238	2238	214.25
2	A₁	2215	2215	2.47
3	A₁	2203	2203	118.60
4	A₁	954	954	85.25
5	A₁	939	939	0.47
6	A₁	878	878	159.35
7	A₁	585	585	8.82
8	A₁	385	385	0.44
9	A₁	109	109	1.19
10	A₂	2230	2230	0.00
11	A₂	942	942	0.00
12	A₂	723	723	0.00
13	A₂	466	466	0.00
14	A₂	207	207	0.00
15	B₁	2237	2237	409.99
16	B₁	2218	2218	15.83
17	B₁	946	946	71.22
18	B₁	615	615	9.53
19	B₁	391	391	24.81
20	B₁	204	204	0.01
21	B₂	2235	2235	112.34
22	B₂	2207	2207	130.12
23	B₂	947	947	32.87
24	B₂	864	864	271.17
25	B₂	727	727	281.29
26	B₂	487	487	21.56
27	B₂	458	458	1.25

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.915
Si2	0.000	1.967	-0.429
Si3	0.000	-1.967	-0.429
H4	1.218	0.000	1.809
H5	-1.218	0.000	1.809
H6	0.000	3.212	0.423
H7	0.000	-3.212	0.423
H8	1.223	1.993	-1.313
H9	-1.223	1.993	-1.313
H10	-1.223	-1.993	-1.313
H11	1.223	-1.993	-1.313

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3824	2.3824	1.5108	1.5108	3.2496	3.2496	3.2298	3.2298	3.2298	3.2298
Si2	2.3824		3.9341	3.2189	3.2189	1.5087	5.2488	1.5092	1.5092	4.2377	4.2377
Si3	2.3824	3.9341		3.2189	3.2189	5.2488	1.5087	4.2377	4.2377	1.5092	1.5092
H4	1.5108	3.2189	3.2189		2.4360	3.7043	3.7043	3.7038	4.4358	4.4358	3.7038
H5	1.5108	3.2189	3.2189	2.4360		3.7043	3.7043	4.4358	3.7038	3.7038	4.4358
H6	3.2496	1.5087	5.2488	3.7043	3.7043		6.4242	2.4486	2.4486	5.6215	5.6215
H7	3.2496	5.2488	1.5087	3.7043	3.7043	6.4242		5.6215	5.6215	2.4486	2.4486
H8	3.2298	1.5092	4.2377	3.7038	4.4358	2.4486	5.6215		2.4458	4.6764	3.9858
H9	3.2298	1.5092	4.2377	4.4358	3.7038	2.4486	5.6215	2.4458		3.9858	4.6764
H10	3.2298	4.2377	1.5092	4.4358	3.7038	5.6215	2.4486	4.6764	3.9858		2.4458
H11	3.2298	4.2377	1.5092	3.7038	4.4358	5.6215	2.4486	3.9858	4.6764	2.4458

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	111.270	S1	S2	H8	110.157
S1	S2	H9	110.157	S1	S3	H7	111.270
S1	S3	H10	110.157	S1	S3	H11	110.157
S2	S1	S3	111.310	S2	S1	H4	109.499
S2	S1	H5	109.499	S3	S1	H4	109.499
S3	S1	H5	109.499	H4	S1	H5	107.451
H6	S2	H8	108.462	H6	S2	H9	108.462
H7	S3	H10	108.462	H7	S3	H11	108.462
H8	S2	H9	108.254	H10	S3	H11	108.254

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: wB97X-D/CEP-121G

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	0.089
2	Si	0.258
3	Si	0.258
4	H	-0.067
5	H	-0.067
6	H	-0.077
7	H	-0.077
8	H	-0.079
9	H	-0.079
10	H	-0.079
11	H	-0.079

<r²>	122.151
(<r²>)^1/2	11.052

All results from a given calculation for Si3H8 (trisilane)

using model chemistry: wB97X-D/CEP-121G

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)