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	hartrees
Energy at 0K	-863.254098
Energy at 298.15K	-863.262752
HF Energy	-863.254098
Nuclear repulsion energy	200.607831

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2807	2807	17.58
2	A₁	2750	2750	13.41
3	A₁	2748	2748	2.81
4	A₁	1162	1162	82.69
5	A₁	1144	1144	0.05
6	A₁	1091	1091	243.51
7	A₁	706	706	17.78
8	A₁	510	510	3.41
9	A₁	142	142	2.19
10	A₂	2794	2794	0.00
11	A₂	1170	1170	0.00
12	A₂	895	895	0.00
13	A₂	592	592	0.00
14	A₂	200	200	0.00
15	B₁	2795	2795	37.22
16	B₁	2781	2781	6.33
17	B₁	1172	1172	98.95
18	B₁	729	729	18.98
19	B₁	436	436	32.37
20	B₁	206	206	0.37
21	B₂	2806	2806	11.52
22	B₂	2748	2748	9.35
23	B₂	1154	1154	54.94
24	B₂	1082	1082	284.33
25	B₂	909	909	408.25
26	B₂	621	621	6.78
27	B₂	604	604	18.05

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.843
Si2	0.000	1.866	-0.396
Si3	0.000	-1.866	-0.396
H4	1.150	0.000	1.703
H5	-1.150	0.000	1.703
H6	0.000	3.043	0.423
H7	0.000	-3.043	0.423
H8	1.158	1.917	-1.242
H9	-1.158	1.917	-1.242
H10	-1.158	-1.917	-1.242
H11	1.158	-1.917	-1.242

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.2397	2.2397	1.4354	1.4354	3.0723	3.0723	3.0596	3.0596	3.0596	3.0596
Si2	2.2397		3.7313	3.0342	3.0342	1.4344	4.9769	1.4347	1.4347	4.0450	4.0450
Si3	2.2397	3.7313		3.0342	3.0342	4.9769	1.4344	4.0450	4.0450	1.4347	1.4347
H4	1.4354	3.0342	3.0342		2.2995	3.4960	3.4960	3.5133	4.2033	4.2033	3.5133
H5	1.4354	3.0342	3.0342	2.2995		3.4960	3.4960	4.2033	3.5133	3.5133	4.2033
H6	3.0723	1.4344	4.9769	3.4960	3.4960		6.0869	2.3196	2.3196	5.3586	5.3586
H7	3.0723	4.9769	1.4344	3.4960	3.4960	6.0869		5.3586	5.3586	2.3196	2.3196
H8	3.0596	1.4347	4.0450	3.5133	4.2033	2.3196	5.3586		2.3154	4.4785	3.8335
H9	3.0596	1.4347	4.0450	4.2033	3.5133	2.3196	5.3586	2.3154		3.8335	4.4785
H10	3.0596	4.0450	1.4347	4.2033	3.5133	5.3586	2.3196	4.4785	3.8335		2.3154
H11	3.0596	4.0450	1.4347	3.5133	4.2033	5.3586	2.3196	3.8335	4.4785	2.3154

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	111.603	S1	S2	H8	110.845
S1	S2	H9	110.845	S1	S3	H7	111.603
S1	S3	H10	110.845	S1	S3	H11	110.845
S2	S1	S3	112.819	S2	S1	H4	109.344
S2	S1	H5	109.344	S3	S1	H4	109.344
S3	S1	H5	109.344	H4	S1	H5	106.446
H6	S2	H8	107.896	H6	S2	H9	107.896
H7	S3	H10	107.896	H7	S3	H11	107.896
H8	S2	H9	107.597	H10	S3	H11	107.597

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: M06-2X/STO-3G

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	0.267
2	Si	0.390
3	Si	0.390
4	H	-0.130
5	H	-0.130
6	H	-0.130
7	H	-0.130
8	H	-0.132
9	H	-0.132
10	H	-0.132
11	H	-0.132

<r²>	191.224
(<r²>)^1/2	13.828

All results from a given calculation for Si3H8 (trisilane)

using model chemistry: M06-2X/STO-3G

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)