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	hartrees
Energy at 0K	-873.191647
Energy at 298.15K	-873.199044
HF Energy	-873.191647
Nuclear repulsion energy	190.458130

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2159	2148	147.12
2	A₁	2148	2136	1.74
3	A₁	2125	2113	59.78
4	A₁	931	926	62.76
5	A₁	908	903	0.72
6	A₁	870	865	155.79
7	A₁	548	545	4.31
8	A₁	361	359	0.37
9	A₁	95	94	1.03
10	A₂	2159	2148	0.00
11	A₂	922	917	0.00
12	A₂	691	687	0.00
13	A₂	410	408	0.00
14	A₂	68	67	0.00
15	B₁	2164	2152	214.81
16	B₁	2135	2123	29.79
17	B₁	927	921	60.59
18	B₁	578	575	7.73
19	B₁	308	306	13.00
20	B₁	88	87	0.03
21	B₂	2158	2146	39.06
22	B₂	2144	2132	119.92
23	B₂	924	919	27.79
24	B₂	856	851	294.30
25	B₂	702	698	288.02
26	B₂	441	438	7.61
27	B₂	420	418	7.84

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.894
Si2	0.000	1.972	-0.421
Si3	0.000	-1.972	-0.421
H4	1.205	0.000	1.783
H5	-1.205	0.000	1.783
H6	0.000	3.190	0.445
H7	0.000	-3.190	0.445
H8	1.210	2.017	-1.296
H9	-1.210	2.017	-1.296
H10	-1.210	-2.017	-1.296
H11	1.210	-2.017	-1.296

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3703	2.3703	1.4973	1.4973	3.2217	3.2217	3.2138	3.2138	3.2138	3.2138
Si2	2.3703		3.9442	3.1934	3.1934	1.4943	5.2344	1.4939	1.4939	4.2598	4.2598
Si3	2.3703	3.9442		3.1934	3.1934	5.2344	1.4943	4.2598	4.2598	1.4939	1.4939
H4	1.4973	3.1934	3.1934		2.4099	3.6634	3.6634	3.6805	4.4022	4.4022	3.6805
H5	1.4973	3.1934	3.1934	2.4099		3.6634	3.6634	4.4022	3.6805	3.6805	4.4022
H6	3.2217	1.4943	5.2344	3.6634	3.6634		6.3804	2.4224	2.4224	5.6224	5.6224
H7	3.2217	5.2344	1.4943	3.6634	3.6634	6.3804		5.6224	5.6224	2.4224	2.4224
H8	3.2138	1.4939	4.2598	3.6805	4.4022	2.4224	5.6224		2.4205	4.7051	4.0348
H9	3.2138	1.4939	4.2598	4.4022	3.6805	2.4224	5.6224	2.4205		4.0348	4.7051
H10	3.2138	4.2598	1.4939	4.4022	3.6805	5.6224	2.4224	4.7051	4.0348		2.4205
H11	3.2138	4.2598	1.4939	3.6805	4.4022	5.6224	2.4224	4.0348	4.7051	2.4205

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	110.909	S1	S2	H8	110.487
S1	S2	H9	110.487	S1	S3	H7	110.909
S1	S3	H10	110.487	S1	S3	H11	110.487
S2	S1	S3	112.612	S2	S1	H4	109.226
S2	S1	H5	109.226	S3	S1	H4	109.226
S3	S1	H5	109.226	H4	S1	H5	107.175
H6	S2	H8	108.325	H6	S2	H9	108.325
H7	S3	H10	108.325	H7	S3	H11	108.325
H8	S2	H9	108.221	H10	S3	H11	108.221

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: BLYP/6-31G(2df,p)

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	-0.062
2	Si	-0.091
3	Si	-0.091
4	H	0.031
5	H	0.031
6	H	0.029
7	H	0.029
8	H	0.031
9	H	0.031
10	H	0.031
11	H	0.031

<r²>	212.676
(<r²>)^1/2	14.583

All results from a given calculation for Si3H8 (trisilane)

using model chemistry: BLYP/6-31G(2df,p)

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)