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	hartrees
Energy at 0K	-861.623582
Energy at 298.15K	-861.631905
HF Energy	-861.500060
Nuclear repulsion energy	199.052120

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2791	2481	32.66
2	A₁	2738	2434	14.50
3	A₁	2736	2432	7.38
4	A₁	1198	1065	131.41
5	A₁	1185	1054	0.52
6	A₁	1126	1001	244.13
7	A₁	708	630	20.82
8	A₁	509	453	3.91
9	A₁	141	126	2.94
10	A₂	2790	2480	0.00
11	A₂	1189	1057	0.00
12	A₂	902	802	0.00
13	A₂	589	523	0.00
14	A₂	73	65	0.00
15	B₁	2791	2481	54.21
16	B₁	2771	2463	15.30
17	B₁	1190	1058	120.70
18	B₁	737	655	21.75
19	B₁	441	392	43.01
20	B₁	83	74	0.03
21	B₂	2791	2481	13.18
22	B₂	2737	2433	18.53
23	B₂	1191	1059	37.81
24	B₂	1110	987	375.19
25	B₂	929	826	427.93
26	B₂	630	560	8.62
27	B₂	602	535	31.72

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.834
Si2	0.000	1.893	-0.393
Si3	0.000	-1.893	-0.393
H4	1.152	0.000	1.700
H5	-1.152	0.000	1.700
H6	0.000	3.061	0.446
H7	0.000	-3.061	0.446
H8	1.160	1.964	-1.241
H9	-1.160	1.964	-1.241
H10	-1.160	-1.964	-1.241
H11	1.160	-1.964	-1.241

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.2565	2.2565	1.4409	1.4409	3.0860	3.0860	3.0844	3.0844	3.0844	3.0844
Si2	2.2565		3.7866	3.0486	3.0486	1.4386	5.0255	1.4389	1.4389	4.1167	4.1167
Si3	2.2565	3.7866		3.0486	3.0486	5.0255	1.4386	4.1167	4.1167	1.4389	1.4389
H4	1.4409	3.0486	3.0486		2.3035	3.5030	3.5030	3.5373	4.2258	4.2258	3.5373
H5	1.4409	3.0486	3.0486	2.3035		3.5030	3.5030	4.2258	3.5373	3.5373	4.2258
H6	3.0860	1.4386	5.0255	3.5030	3.5030		6.1230	2.3235	2.3235	5.4272	5.4272
H7	3.0860	5.0255	1.4386	3.5030	3.5030	6.1230		5.4272	5.4272	2.3235	2.3235
H8	3.0844	1.4389	4.1167	3.5373	4.2258	2.3235	5.4272		2.3203	4.5628	3.9288
H9	3.0844	1.4389	4.1167	4.2258	3.5373	2.3235	5.4272	2.3203		3.9288	4.5628
H10	3.0844	4.1167	1.4389	4.2258	3.5373	5.4272	2.3235	4.5628	3.9288		2.3203
H11	3.0844	4.1167	1.4389	3.5373	4.2258	5.4272	2.3235	3.9288	4.5628	2.3203

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	111.333	S1	S2	H8	111.232
S1	S2	H9	111.232	S1	S3	H7	111.333
S1	S3	H10	111.232	S1	S3	H11	111.232
S2	S1	S3	114.082	S2	S1	H4	109.082
S2	S1	H5	109.082	S3	S1	H4	109.082
S3	S1	H5	109.082	H4	S1	H5	106.129
H6	S2	H8	107.696	H6	S2	H9	107.696
H7	S3	H10	107.696	H7	S3	H11	107.696
H8	S2	H9	107.465	H10	S3	H11	107.465

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: MP2=FULL/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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All results from a given calculation for Si3H8 (trisilane)

using model chemistry: MP2=FULL/STO-3G

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)