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	hartrees
Energy at 0K	-872.873847
Energy at 298.15K
HF Energy	-872.767749
Nuclear repulsion energy	192.080989

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2239	2239	135.70
2	A₁	2229	2229	12.66
3	A₁	2209	2209	66.40
4	A₁	968	968	75.34
5	A₁	943	943	2.85
6	A₁	907	907	192.21
7	A₁	574	574	6.34
8	A₁	386	386	0.54
9	A₁	98	98	1.39
10	A₂	2236	2236	0.00
11	A₂	960	960	0.00
12	A₂	719	719	0.00
13	A₂	423	423	0.00
14	A₂	86	86	0.00
15	B₁	2241	2241	224.44
16	B₁	2219	2219	23.50
17	B₁	964	964	78.08
18	B₁	605	605	9.41
19	B₁	317	317	19.95
20	B₁	102	102	0.04
21	B₂	2238	2238	67.23
22	B₂	2225	2225	100.59
23	B₂	961	961	37.32
24	B₂	894	894	327.66
25	B₂	732	732	292.10
26	B₂	465	465	7.62
27	B₂	440	440	16.09

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.900
Si2	0.000	1.944	-0.423
Si3	0.000	-1.944	-0.423
H4	1.205	0.000	1.778
H5	-1.205	0.000	1.778
H6	0.000	3.165	0.425
H7	0.000	-3.165	0.425
H8	1.207	1.967	-1.292
H9	-1.207	1.967	-1.292
H10	-1.207	-1.967	-1.292
H11	1.207	-1.967	-1.292

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3516	2.3516	1.4904	1.4904	3.2007	3.2007	3.1830	3.1830	3.1830	3.1830
Si2	2.3516		3.8875	3.1740	3.1740	1.4872	5.1789	1.4875	1.4875	4.1838	4.1838
Si3	2.3516	3.8875		3.1740	3.1740	5.1789	1.4872	4.1838	4.1838	1.4875	1.4875
H4	1.4904	3.1740	3.1740		2.4092	3.6469	3.6469	3.6457	4.3714	4.3714	3.6457
H5	1.4904	3.1740	3.1740	2.4092		3.6469	3.6469	4.3714	3.6457	3.6457	4.3714
H6	3.2007	1.4872	5.1789	3.6469	3.6469		6.3305	2.4170	2.4170	5.5446	5.5446
H7	3.2007	5.1789	1.4872	3.6469	3.6469	6.3305		5.5446	5.5446	2.4170	2.4170
H8	3.1830	1.4875	4.1838	3.6457	4.3714	2.4170	5.5446		2.4147	4.6155	3.9335
H9	3.1830	1.4875	4.1838	4.3714	3.6457	2.4170	5.5446	2.4147		3.9335	4.6155
H10	3.1830	4.1838	1.4875	4.3714	3.6457	5.5446	2.4170	4.6155	3.9335		2.4147
H11	3.1830	4.1838	1.4875	3.6457	4.3714	5.5446	2.4170	3.9335	4.6155	2.4147

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	110.964	S1	S2	H8	109.965
S1	S2	H9	109.965	S1	S3	H7	110.964
S1	S3	H10	109.965	S1	S3	H11	109.965
S2	S1	S3	111.493	S2	S1	H4	109.355
S2	S1	H5	109.355	S3	S1	H4	109.355
S3	S1	H5	109.355	H4	S1	H5	107.853
H6	S2	H8	108.687	H6	S2	H9	108.687
H7	S3	H10	108.687	H7	S3	H11	108.687
H8	S2	H9	108.518	H10	S3	H11	108.518

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: B2PLYP/cc-pV(D+d)Z

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	0.099
2	Si	0.228
3	Si	0.228
4	H	-0.064
5	H	-0.064
6	H	-0.068
7	H	-0.068
8	H	-0.073
9	H	-0.073
10	H	-0.073
11	H	-0.073

<r²>	209.050
(<r²>)^1/2	14.459

All results from a given calculation for Si3H8 (trisilane)

using model chemistry: B2PLYP/cc-pV(D+d)Z

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)