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	hartrees
Energy at 0K	-871.781961
Energy at 298.15K	-871.789772
HF Energy	-871.400605
Nuclear repulsion energy	193.180678

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2329	2170	172.34
2	A₁	2317	2158	27.48
3	A₁	2293	2137	100.09
4	A₁	995	927	84.88
5	A₁	970	904	18.68
6	A₁	938	873	221.61
7	A₁	591	551	10.23
8	A₁	404	377	0.97
9	A₁	102	95	2.11
10	A₂	2324	2165	0.00
11	A₂	985	917	0.00
12	A₂	733	683	0.00
13	A₂	430	400	0.00
14	A₂	84	78	0.00
15	B₁	2329	2170	307.42
16	B₁	2305	2147	43.50
17	B₁	989	921	99.46
18	B₁	624	582	12.15
19	B₁	323	301	31.63
20	B₁	103	96	0.07
21	B₂	2328	2168	102.86
22	B₂	2311	2153	118.53
23	B₂	985	918	40.03
24	B₂	928	865	374.97
25	B₂	760	708	351.11
26	B₂	487	454	5.58
27	B₂	454	423	29.53

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.886
Si2	0.000	1.941	-0.417
Si3	0.000	-1.941	-0.417
H4	1.195	0.000	1.757
H5	-1.195	0.000	1.757
H6	0.000	3.147	0.433
H7	0.000	-3.147	0.433
H8	1.198	1.968	-1.279
H9	-1.198	1.968	-1.279
H10	-1.198	-1.968	-1.279
H11	1.198	-1.968	-1.279

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3376	2.3376	1.4790	1.4790	3.1790	3.1790	3.1612	3.1612	3.1612	3.1612
Si2	2.3376		3.8817	3.1497	3.1497	1.4752	5.1580	1.4759	1.4759	4.1781	4.1781
Si3	2.3376	3.8817		3.1497	3.1497	5.1580	1.4752	4.1781	4.1781	1.4759	1.4759
H4	1.4790	3.1497	3.1497		2.3909	3.6170	3.6170	3.6175	4.3376	4.3376	3.6175
H5	1.4790	3.1497	3.1497	2.3909		3.6170	3.6170	4.3376	3.6175	3.6175	4.3376
H6	3.1790	1.4752	5.1580	3.6170	3.6170		6.2932	2.3987	2.3987	5.5249	5.5249
H7	3.1790	5.1580	1.4752	3.6170	3.6170	6.2932		5.5249	5.5249	2.3987	2.3987
H8	3.1612	1.4759	4.1781	3.6175	4.3376	2.3987	5.5249		2.3957	4.6078	3.9360
H9	3.1612	1.4759	4.1781	4.3376	3.6175	2.3987	5.5249	2.3957		3.9360	4.6078
H10	3.1612	4.1781	1.4759	4.3376	3.6175	5.5249	2.3987	4.6078	3.9360		2.3957
H11	3.1612	4.1781	1.4759	3.6175	4.3376	5.5249	2.3987	3.9360	4.6078	2.3957

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	110.949	S1	S2	H8	109.921
S1	S2	H9	109.921	S1	S3	H7	110.949
S1	S3	H10	109.921	S1	S3	H11	109.921
S2	S1	S3	112.256	S2	S1	H4	109.157
S2	S1	H5	109.157	S3	S1	H4	109.157
S3	S1	H5	109.157	H4	S1	H5	107.859
H6	S2	H8	108.746	H6	S2	H9	108.746
H7	S3	H10	108.746	H7	S3	H11	108.746
H8	S2	H9	108.506	H10	S3	H11	108.506

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: MP3=FULL/6-31+G**

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: MP3=FULL/6-31+G**

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)