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	hartrees
Energy at 0K	-872.663150
Energy at 298.15K	-872.670711
HF Energy	-872.605293
Nuclear repulsion energy	189.833154

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2190	2190	218.50
2	A₁	2170	2170	9.64
3	A₁	2154	2154	108.37
4	A₁	945	945	84.25
5	A₁	918	918	2.01
6	A₁	874	874	178.77
7	A₁	568	568	9.34
8	A₁	375	375	0.56
9	A₁	104	104	1.49
10	A₂	2186	2186	0.00
11	A₂	935	935	0.00
12	A₂	718	718	0.00
13	A₂	436	436	0.00
14	A₂	68	68	0.00
15	B₁	2192	2192	377.77
16	B₁	2170	2170	22.85
17	B₁	939	939	80.12
18	B₁	596	596	10.44
19	B₁	325	325	22.69
20	B₁	86	86	0.04
21	B₂	2187	2187	93.76
22	B₂	2164	2164	148.57
23	B₂	939	939	35.39
24	B₂	860	860	308.36
25	B₂	725	725	322.90
26	B₂	466	466	14.46
27	B₂	445	445	10.56

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.893
Si2	0.000	1.979	-0.421
Si3	0.000	-1.979	-0.421
H4	1.213	0.000	1.784
H5	-1.213	0.000	1.784
H6	0.000	3.200	0.455
H7	0.000	-3.200	0.455
H8	1.218	2.021	-1.300
H9	-1.218	2.021	-1.300
H10	-1.218	-2.021	-1.300
H11	1.218	-2.021	-1.300

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3756	2.3756	1.5055	1.5055	3.2301	3.2301	3.2217	3.2217	3.2217	3.2217
Si2	2.3756		3.9586	3.2019	3.2019	1.5024	5.2530	1.5028	1.5028	4.2734	4.2734
Si3	2.3756	3.9586		3.2019	3.2019	5.2530	1.5024	4.2734	4.2734	1.5028	1.5028
H4	1.5055	3.2019	3.2019		2.4264	3.6717	3.6717	3.6880	4.4171	4.4171	3.6880
H5	1.5055	3.2019	3.2019	2.4264		3.6717	3.6717	4.4171	3.6880	3.6880	4.4171
H6	3.2301	1.5024	5.2530	3.6717	3.6717		6.4005	2.4398	2.4398	5.6417	5.6417
H7	3.2301	5.2530	1.5024	3.6717	3.6717	6.4005		5.6417	5.6417	2.4398	2.4398
H8	3.2217	1.5028	4.2734	3.6880	4.4171	2.4398	5.6417		2.4357	4.7198	4.0428
H9	3.2217	1.5028	4.2734	4.4171	3.6880	2.4398	5.6417	2.4357		4.0428	4.7198
H10	3.2217	4.2734	1.5028	4.4171	3.6880	5.6417	2.4398	4.7198	4.0428		2.4357
H11	3.2217	4.2734	1.5028	3.6880	4.4171	5.6417	2.4398	4.0428	4.7198	2.4357

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	110.786	S1	S2	H8	110.302
S1	S2	H9	110.302	S1	S3	H7	110.786
S1	S3	H10	110.302	S1	S3	H11	110.302
S2	S1	S3	112.853	S2	S1	H4	109.114
S2	S1	H5	109.114	S3	S1	H4	109.114
S3	S1	H5	109.114	H4	S1	H5	107.386
H6	S2	H8	108.557	H6	S2	H9	108.557
H7	S3	H10	108.557	H7	S3	H11	108.557
H8	S2	H9	108.266	H10	S3	H11	108.266

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: B2PLYP/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	0.150
2	Si	0.370
3	Si	0.370
4	H	-0.106
5	H	-0.106
6	H	-0.113
7	H	-0.113
8	H	-0.114
9	H	-0.114
10	H	-0.114
11	H	-0.114

<r²>	215.049
(<r²>)^1/2	14.665

All results from a given calculation for Si3H8 (trisilane)

using model chemistry: B2PLYP/6-31G

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)