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	hartrees
Energy at 0K	-871.726141
Energy at 298.15K	-871.733785
HF Energy	-871.385457
Nuclear repulsion energy	192.452309

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)
1	A₁	2250	2250
2	A₁	2235	2235
3	A₁	2211	2211
4	A₁	955	955
5	A₁	932	932
6	A₁	901	901
7	A₁	578	578
8	A₁	402	402
9	A₁	100	100
10	A₂	2245	2245
11	A₂	944	944
12	A₂	721	721
13	A₂	426	426
14	A₂	77	77
15	B₁	2250	2250
16	B₁	2223	2223
17	B₁	948	948
18	B₁	610	610
19	B₁	316	316
20	B₁	97	97
21	B₂	2248	2248
22	B₂	2230	2230
23	B₂	946	946
24	B₂	893	893
25	B₂	743	743
26	B₂	485	485
27	B₂	446	446

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.887
Si2	0.000	1.941	-0.417
Si3	0.000	-1.941	-0.417
H4	1.209	0.000	1.773
H5	-1.209	0.000	1.773
H6	0.000	3.165	0.441
H7	0.000	-3.165	0.441
H8	1.212	1.972	-1.292
H9	-1.212	1.972	-1.292
H10	-1.212	-1.972	-1.292
H11	1.212	-1.972	-1.292

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3380	2.3380	1.4990	1.4990	3.1959	3.1959	3.1791	3.1791	3.1791	3.1791
Si2	2.3380		3.8817	3.1659	3.1659	1.4946	5.1772	1.4952	1.4952	4.1890	4.1890
Si3	2.3380	3.8817		3.1659	3.1659	5.1772	1.4946	4.1890	4.1890	1.4952	1.4952
H4	1.4990	3.1659	3.1659		2.4185	3.6401	3.6401	3.6449	4.3755	4.3755	3.6449
H5	1.4990	3.1659	3.1659	2.4185		3.6401	3.6401	4.3755	3.6449	3.6449	4.3755
H6	3.1959	1.4946	5.1772	3.6401	3.6401		6.3294	2.4279	2.4279	5.5554	5.5554
H7	3.1959	5.1772	1.4946	3.6401	3.6401	6.3294		5.5554	5.5554	2.4279	2.4279
H8	3.1791	1.4952	4.1890	3.6449	4.3755	2.4279	5.5554		2.4230	4.6295	3.9447
H9	3.1791	1.4952	4.1890	4.3755	3.6449	2.4279	5.5554	2.4230		3.9447	4.6295
H10	3.1791	4.1890	1.4952	4.3755	3.6449	5.5554	2.4279	4.6295	3.9447		2.4230
H11	3.1791	4.1890	1.4952	3.6449	4.3755	5.5554	2.4279	3.9447	4.6295	2.4230

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	111.082	S1	S2	H8	110.121
S1	S2	H9	110.121	S1	S3	H7	111.082
S1	S3	H10	110.121	S1	S3	H11	110.121
S2	S1	S3	112.229	S2	S1	H4	109.239
S2	S1	H5	109.239	S3	S1	H4	109.239
S3	S1	H5	109.239	H4	S1	H5	107.542
H6	S2	H8	108.599	H6	S2	H9	108.599
H7	S3	H10	108.599	H7	S3	H11	108.599
H8	S2	H9	108.249	H10	S3	H11	108.249

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: QCISD(T)=FULL/6-31G*

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: QCISD(T)=FULL/6-31G*

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)