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	hartrees
Energy at 0K	-872.749128
Energy at 298.15K	-872.756528
HF Energy	-872.749128
Nuclear repulsion energy	191.370531

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2179	2150	163.16
2	A₁	2165	2135	6.52
3	A₁	2147	2118	64.64
4	A₁	916	903	57.92
5	A₁	889	877	0.10
6	A₁	848	836	148.75
7	A₁	545	538	4.46
8	A₁	378	373	0.52
9	A₁	94	93	1.00
10	A₂	2178	2148	0.00
11	A₂	907	895	0.00
12	A₂	690	680	0.00
13	A₂	406	401	0.00
14	A₂	80	79	0.00
15	B₁	2183	2154	259.24
16	B₁	2158	2129	23.17
17	B₁	911	899	57.02
18	B₁	572	564	7.69
19	B₁	303	298	13.05
20	B₁	97	96	0.04
21	B₂	2178	2148	59.16
22	B₂	2161	2131	117.32
23	B₂	910	897	29.61
24	B₂	835	823	259.42
25	B₂	691	682	274.03
26	B₂	457	451	3.16
27	B₂	421	415	13.59

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.892
Si2	0.000	1.953	-0.420
Si3	0.000	-1.953	-0.420
H4	1.211	0.000	1.784
H5	-1.211	0.000	1.784
H6	0.000	3.181	0.443
H7	0.000	-3.181	0.443
H8	1.216	1.990	-1.298
H9	-1.216	1.990	-1.298
H10	-1.216	-1.990	-1.298
H11	1.216	-1.990	-1.298

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3526	2.3526	1.5035	1.5035	3.2127	3.2127	3.1998	3.1998	3.1998	3.1998
Si2	2.3526		3.9058	3.1836	3.1836	1.5007	5.2059	1.5005	1.5005	4.2190	4.2190
Si3	2.3526	3.9058		3.1836	3.1836	5.2059	1.5007	4.2190	4.2190	1.5005	1.5005
H4	1.5035	3.1836	3.1836		2.4211	3.6584	3.6584	3.6691	4.3988	4.3988	3.6691
H5	1.5035	3.1836	3.1836	2.4211		3.6584	3.6584	4.3988	3.6691	3.6691	4.3988
H6	3.2127	1.5007	5.2059	3.6584	3.6584		6.3621	2.4345	2.4345	5.5905	5.5905
H7	3.2127	5.2059	1.5007	3.6584	3.6584	6.3621		5.5905	5.5905	2.4345	2.4345
H8	3.1998	1.5005	4.2190	3.6691	4.3988	2.4345	5.5905		2.4316	4.6648	3.9809
H9	3.1998	1.5005	4.2190	4.3988	3.6691	2.4345	5.5905	2.4316		3.9809	4.6648
H10	3.1998	4.2190	1.5005	4.3988	3.6691	5.5905	2.4345	4.6648	3.9809		2.4316
H11	3.1998	4.2190	1.5005	3.6691	4.3988	5.5905	2.4345	3.9809	4.6648	2.4316

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	111.033	S1	S2	H8	110.324
S1	S2	H9	110.324	S1	S3	H7	111.033
S1	S3	H10	110.324	S1	S3	H11	110.324
S2	S1	S3	112.213	S2	S1	H4	109.313
S2	S1	H5	109.313	S3	S1	H4	109.313
S3	S1	H5	109.313	H4	S1	H5	107.250
H6	S2	H8	108.421	H6	S2	H9	108.421
H7	S3	H10	108.421	H7	S3	H11	108.421
H8	S2	H9	108.238	H10	S3	H11	108.238

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: PBEPBEultrafine/6-31G**

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	0.011
2	Si	0.149
3	Si	0.149
4	H	-0.032
5	H	-0.032
6	H	-0.041
7	H	-0.041
8	H	-0.041
9	H	-0.041
10	H	-0.041
11	H	-0.041

<r²>	209.917
(<r²>)^1/2	14.489

All results from a given calculation for Si3H8 (trisilane)

using model chemistry: PBEPBEultrafine/6-31G**

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)