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	hartrees
Energy at 0K	-872.941016
Energy at 298.15K
HF Energy	-872.808659
Nuclear repulsion energy	192.565498

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2245	2245	140.24
2	A₁	2236	2236	18.00
3	A₁	2213	2213	68.56
4	A₁	968	968	71.96
5	A₁	943	943	2.38
6	A₁	906	906	193.47
7	A₁	573	573	6.48
8	A₁	387	387	0.59
9	A₁	97	97	1.41
10	A₂	2241	2241	0.00
11	A₂	960	960	0.00
12	A₂	716	716	0.00
13	A₂	423	423	0.00
14	A₂	91	91	0.00
15	B₁	2246	2246	240.94
16	B₁	2221	2221	26.76
17	B₁	965	965	77.15
18	B₁	602	602	9.95
19	B₁	320	320	20.43
20	B₁	107	107	0.06
21	B₂	2243	2243	80.43
22	B₂	2232	2232	96.69
23	B₂	960	960	37.59
24	B₂	894	894	328.07
25	B₂	729	729	295.19
26	B₂	465	465	8.71
27	B₂	438	438	16.90

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.900
Si2	0.000	1.939	-0.423
Si3	0.000	-1.939	-0.423
H4	1.199	0.000	1.775
H5	-1.199	0.000	1.775
H6	0.000	3.158	0.418
H7	0.000	-3.158	0.418
H8	1.201	1.962	-1.288
H9	-1.201	1.962	-1.288
H10	-1.201	-1.962	-1.288
H11	1.201	-1.962	-1.288

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3477	2.3477	1.4837	1.4837	3.1941	3.1941	3.1749	3.1749	3.1749	3.1749
Si2	2.3477		3.8789	3.1665	3.1665	1.4802	5.1659	1.4805	1.4805	4.1727	4.1727
Si3	2.3477	3.8789		3.1665	3.1665	5.1659	1.4802	4.1727	4.1727	1.4805	1.4805
H4	1.4837	3.1665	3.1665		2.3974	3.6396	3.6396	3.6370	4.3575	4.3575	3.6370
H5	1.4837	3.1665	3.1665	2.3974		3.6396	3.6396	4.3575	3.6370	3.6370	4.3575
H6	3.1941	1.4802	5.1659	3.6396	3.6396		6.3151	2.4050	2.4050	5.5283	5.5283
H7	3.1941	5.1659	1.4802	3.6396	3.6396	6.3151		5.5283	5.5283	2.4050	2.4050
H8	3.1749	1.4805	4.1727	3.6370	4.3575	2.4050	5.5283		2.4026	4.6008	3.9236
H9	3.1749	1.4805	4.1727	4.3575	3.6370	2.4050	5.5283	2.4026		3.9236	4.6008
H10	3.1749	4.1727	1.4805	4.3575	3.6370	5.5283	2.4050	4.6008	3.9236		2.4026
H11	3.1749	4.1727	1.4805	3.6370	4.3575	5.5283	2.4050	3.9236	4.6008	2.4026

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	111.075	S1	S2	H8	109.984
S1	S2	H9	109.984	S1	S3	H7	111.075
S1	S3	H10	109.984	S1	S3	H11	109.984
S2	S1	S3	111.399	S2	S1	H4	109.396
S2	S1	H5	109.396	S3	S1	H4	109.396
S3	S1	H5	109.396	H4	S1	H5	107.785
H6	S2	H8	108.638	H6	S2	H9	108.638
H7	S3	H10	108.638	H7	S3	H11	108.638
H8	S2	H9	108.462	H10	S3	H11	108.462

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: B2PLYP/aug-cc-pCVTZ

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	0.373
2	Si	0.791
3	Si	0.791
4	H	-0.211
5	H	-0.211
6	H	-0.300
7	H	-0.300
8	H	-0.233
9	H	-0.233
10	H	-0.233
11	H	-0.233

<r²>	208.221
(<r²>)^1/2	14.430

All results from a given calculation for Si3H8 (trisilane)

using model chemistry: B2PLYP/aug-cc-pCVTZ

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)