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	hartrees
Energy at 0K	-872.858285
Energy at 298.15K	-872.865936
HF Energy	-872.752113
Nuclear repulsion energy	191.328373

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2232	2137	142.68
2	A₁	2221	2127	10.90
3	A₁	2202	2109	67.47
4	A₁	963	922	74.83
5	A₁	937	898	0.53
6	A₁	898	860	185.04
7	A₁	570	546	6.04
8	A₁	383	367	0.48
9	A₁	98	94	1.34
10	A₂	2229	2135	0.00
11	A₂	954	914	0.00
12	A₂	716	686	0.00
13	A₂	423	405	0.00
14	A₂	84	80	0.00
15	B₁	2234	2140	232.39
16	B₁	2212	2118	22.71
17	B₁	959	918	74.35
18	B₁	601	575	9.14
19	B₁	317	303	18.86
20	B₁	99	95	0.03
21	B₂	2230	2136	64.82
22	B₂	2216	2123	107.35
23	B₂	956	915	36.01
24	B₂	885	848	315.42
25	B₂	726	695	290.26
26	B₂	463	443	7.76
27	B₂	438	420	15.00

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.903
Si2	0.000	1.953	-0.424
Si3	0.000	-1.953	-0.424
H4	1.209	0.000	1.783
H5	-1.209	0.000	1.783
H6	0.000	3.176	0.431
H7	0.000	-3.176	0.431
H8	1.212	1.977	-1.296
H9	-1.212	1.977	-1.296
H10	-1.212	-1.977	-1.296
H11	1.212	-1.977	-1.296

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3607	2.3607	1.4958	1.4958	3.2108	3.2108	3.1953	3.1953	3.1953	3.1953
Si2	2.3607		3.9051	3.1854	3.1854	1.4929	5.1994	1.4930	1.4930	4.2034	4.2034
Si3	2.3607	3.9051		3.1854	3.1854	5.1994	1.4929	4.2034	4.2034	1.4930	1.4930
H4	1.4958	3.1854	3.1854		2.4184	3.6574	3.6574	3.6588	4.3874	4.3874	3.6588
H5	1.4958	3.1854	3.1854	2.4184		3.6574	3.6574	4.3874	3.6588	3.6588	4.3874
H6	3.2108	1.4929	5.1994	3.6574	3.6574		6.3520	2.4267	2.4267	5.5681	5.5681
H7	3.2108	5.1994	1.4929	3.6574	3.6574	6.3520		5.5681	5.5681	2.4267	2.4267
H8	3.1953	1.4930	4.2034	3.6588	4.3874	2.4267	5.5681		2.4241	4.6377	3.9538
H9	3.1953	1.4930	4.2034	4.3874	3.6588	2.4267	5.5681	2.4241		3.9538	4.6377
H10	3.1953	4.2034	1.4930	4.3874	3.6588	5.5681	2.4267	4.6377	3.9538		2.4241
H11	3.1953	4.2034	1.4930	3.6588	4.3874	5.5681	2.4267	3.9538	4.6377	2.4241

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	110.840	S1	S2	H8	109.972
S1	S2	H9	109.972	S1	S3	H7	110.840
S1	S3	H10	109.972	S1	S3	H11	109.972
S2	S1	S3	111.602	S2	S1	H4	109.321
S2	S1	H5	109.321	S3	S1	H4	109.321
S3	S1	H5	109.321	H4	S1	H5	107.880
H6	S2	H8	108.728	H6	S2	H9	108.728
H7	S3	H10	108.728	H7	S3	H11	108.728
H8	S2	H9	108.550	H10	S3	H11	108.550

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: B2PLYP/cc-pVDZ

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	0.080
2	Si	0.196
3	Si	0.196
4	H	-0.054
5	H	-0.054
6	H	-0.058
7	H	-0.058
8	H	-0.063
9	H	-0.063
10	H	-0.063
11	H	-0.063

<r²>	210.611
(<r²>)^1/2	14.512

All results from a given calculation for Si3H8 (trisilane)

using model chemistry: B2PLYP/cc-pVDZ

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)