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	hartrees
Energy at 0K	-872.921500
Energy at 298.15K	-872.929211
HF Energy	-872.791489
Nuclear repulsion energy	192.682734

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2250	2250	142.02
2	A₁	2243	2243	15.52
3	A₁	2220	2220	66.49
4	A₁	971	971	74.30
5	A₁	947	947	2.49
6	A₁	909	909	194.48
7	A₁	575	575	6.46
8	A₁	387	387	0.57
9	A₁	97	97	1.41
10	A₂	2247	2247	0.00
11	A₂	964	964	0.00
12	A₂	720	720	0.00
13	A₂	425	425	0.00
14	A₂	92	92	0.00
15	B₁	2252	2252	236.01
16	B₁	2227	2227	25.81
17	B₁	968	968	78.27
18	B₁	605	605	9.80
19	B₁	321	321	20.50
20	B₁	108	108	0.05
21	B₂	2248	2248	76.30
22	B₂	2238	2238	98.07
23	B₂	964	964	37.73
24	B₂	897	897	331.34
25	B₂	733	733	298.74
26	B₂	466	466	8.95
27	B₂	441	441	15.67

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.897
Si2	0.000	1.940	-0.422
Si3	0.000	-1.940	-0.422
H4	1.198	0.000	1.771
H5	-1.198	0.000	1.771
H6	0.000	3.155	0.422
H7	0.000	-3.155	0.422
H8	1.201	1.964	-1.286
H9	-1.201	1.964	-1.286
H10	-1.201	-1.964	-1.286
H11	1.201	-1.964	-1.286

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3458	2.3458	1.4826	1.4826	3.1901	3.1901	3.1727	3.1727	3.1727	3.1727
Si2	2.3458		3.8796	3.1630	3.1630	1.4793	5.1638	1.4796	1.4796	4.1747	4.1747
Si3	2.3458	3.8796		3.1630	3.1630	5.1638	1.4793	4.1747	4.1747	1.4796	1.4796
H4	1.4826	3.1630	3.1630		2.3964	3.6338	3.6338	3.6331	4.3536	4.3536	3.6331
H5	1.4826	3.1630	3.1630	2.3964		3.6338	3.6338	4.3536	3.6331	3.6331	4.3536
H6	3.1901	1.4793	5.1638	3.6338	3.6338		6.3092	2.4037	2.4037	5.5281	5.5281
H7	3.1901	5.1638	1.4793	3.6338	3.6338	6.3092		5.5281	5.5281	2.4037	2.4037
H8	3.1727	1.4796	4.1747	3.6331	4.3536	2.4037	5.5281		2.4015	4.6039	3.9279
H9	3.1727	1.4796	4.1747	4.3536	3.6331	2.4037	5.5281	2.4015		3.9279	4.6039
H10	3.1727	4.1747	1.4796	4.3536	3.6331	5.5281	2.4037	4.6039	3.9279		2.4015
H11	3.1727	4.1747	1.4796	3.6331	4.3536	5.5281	2.4037	3.9279	4.6039	2.4015

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	110.987	S1	S2	H8	109.996
S1	S2	H9	109.996	S1	S3	H7	110.987
S1	S3	H10	109.996	S1	S3	H11	109.996
S2	S1	S3	111.564	S2	S1	H4	109.341
S2	S1	H5	109.341	S3	S1	H4	109.341
S3	S1	H5	109.341	H4	S1	H5	107.837
H6	S2	H8	108.655	H6	S2	H9	108.655
H7	S3	H10	108.655	H7	S3	H11	108.655
H8	S2	H9	108.494	H10	S3	H11	108.494

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: B2PLYP/Def2TZVPP

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	0.127
2	Si	0.173
3	Si	0.173
4	H	-0.062
5	H	-0.062
6	H	-0.058
7	H	-0.058
8	H	-0.058
9	H	-0.058
10	H	-0.058
11	H	-0.058

<r²>	208.119
(<r²>)^1/2	14.426

All results from a given calculation for Si3H8 (trisilane)

using model chemistry: B2PLYP/Def2TZVPP

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)