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	hartrees
Energy at 0K	-873.318498
Energy at 298.15K
HF Energy	-873.318498
Nuclear repulsion energy	192.250165

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2167	2167	152.53
2	A₁	2160	2160	6.42
3	A₁	2136	2136	66.22
4	A₁	932	932	64.70
5	A₁	906	906	0.57
6	A₁	869	869	175.46
7	A₁	550	550	4.81
8	A₁	374	374	0.49
9	A₁	91	91	1.23
10	A₂	2164	2164	0.00
11	A₂	923	923	0.00
12	A₂	688	688	0.00
13	A₂	402	402	0.00
14	A₂	5i	5i	0.00
15	B₁	2170	2170	240.77
16	B₁	2145	2145	24.91
17	B₁	928	928	66.02
18	B₁	578	578	8.68
19	B₁	299	299	17.06
20	B₁	67	67	0.03
21	B₂	2165	2165	69.52
22	B₂	2155	2155	113.10
23	B₂	925	925	36.34
24	B₂	855	855	301.01
25	B₂	695	695	259.77
26	B₂	447	447	7.40
27	B₂	416	416	14.15

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.915
Si2	0.000	1.931	-0.428
Si3	0.000	-1.931	-0.428
H4	1.207	0.000	1.792
H5	-1.207	0.000	1.792
H6	0.000	3.170	0.398
H7	0.000	-3.170	0.398
H8	1.208	1.938	-1.299
H9	-1.208	1.938	-1.299
H10	-1.208	-1.938	-1.299
H11	1.208	-1.938	-1.299

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3518	2.3518	1.4920	1.4920	3.2115	3.2115	3.1807	3.1807	3.1807	3.1807
Si2	2.3518		3.8612	3.1802	3.1802	1.4894	5.1668	1.4894	1.4894	4.1453	4.1453
Si3	2.3518	3.8612		3.1802	3.1802	5.1668	1.4894	4.1453	4.1453	1.4894	1.4894
H4	1.4920	3.1802	3.1802		2.4135	3.6670	3.6670	3.6485	4.3754	4.3754	3.6485
H5	1.4920	3.1802	3.1802	2.4135		3.6670	3.6670	4.3754	3.6485	3.6485	4.3754
H6	3.2115	1.4894	5.1668	3.6670	3.6670		6.3394	2.4202	2.4202	5.5161	5.5161
H7	3.2115	5.1668	1.4894	3.6670	3.6670	6.3394		5.5161	5.5161	2.4202	2.4202
H8	3.1807	1.4894	4.1453	3.6485	4.3754	2.4202	5.5161		2.4167	4.5675	3.8758
H9	3.1807	1.4894	4.1453	4.3754	3.6485	2.4202	5.5161	2.4167		3.8758	4.5675
H10	3.1807	4.1453	1.4894	4.3754	3.6485	5.5161	2.4202	4.5675	3.8758		2.4167
H11	3.1807	4.1453	1.4894	3.6485	4.3754	5.5161	2.4202	3.8758	4.5675	2.4167

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	111.474	S1	S2	H8	109.749
S1	S2	H9	109.749	S1	S3	H7	111.474
S1	S3	H10	109.749	S1	S3	H11	109.749
S2	S1	S3	110.346	S2	S1	H4	109.624
S2	S1	H5	109.624	S3	S1	H4	109.624
S3	S1	H5	109.624	H4	S1	H5	107.962
H6	S2	H8	108.680	H6	S2	H9	108.680
H7	S3	H10	108.680	H7	S3	H11	108.680
H8	S2	H9	108.444	H10	S3	H11	108.444

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: B97D3/aug-cc-pVQZ

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	0.465
2	Si	0.454
3	Si	0.454
4	H	-0.209
5	H	-0.209
6	H	-0.198
7	H	-0.198
8	H	-0.140
9	H	-0.140
10	H	-0.140
11	H	-0.140

<r²>	207.670
(<r²>)^1/2	14.411

All results from a given calculation for Si3H8 (trisilane)

using model chemistry: B97D3/aug-cc-pVQZ

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)