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	hartrees
Energy at 0K	-871.853183
Energy at 298.15K	-871.860993
HF Energy	-871.459830
Nuclear repulsion energy	192.624574

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)
1	A₁	2274	2194
2	A₁	2265	2185
3	A₁	2243	2164
4	A₁	979	944
5	A₁	957	924
6	A₁	923	890
7	A₁	590	569
8	A₁	394	380
9	A₁	101	97
10	A₂	2269	2189
11	A₂	969	935
12	A₂	731	705
13	A₂	443	427
14	A₂	82	79
15	B₁	2273	2193
16	B₁	2251	2171
17	B₁	973	938
18	B₁	620	598
19	B₁	334	323
20	B₁	104	100
21	B₂	2273	2193
22	B₂	2261	2181
23	B₂	970	936
24	B₂	917	885
25	B₂	755	728
26	B₂	476	459
27	B₂	455	439

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.890
Si2	0.000	1.945	-0.419
Si3	0.000	-1.945	-0.419
H4	1.200	0.000	1.764
H5	-1.200	0.000	1.764
H6	0.000	3.156	0.434
H7	0.000	-3.156	0.434
H8	1.202	1.972	-1.284
H9	-1.202	1.972	-1.284
H10	-1.202	-1.972	-1.284
H11	1.202	-1.972	-1.284

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3438	2.3438	1.4847	1.4847	3.1883	3.1883	3.1720	3.1720	3.1720	3.1720
Si2	2.3438		3.8890	3.1600	3.1600	1.4809	5.1708	1.4817	1.4817	4.1873	4.1873
Si3	2.3438	3.8890		3.1600	3.1600	5.1708	1.4809	4.1873	4.1873	1.4817	1.4817
H4	1.4847	3.1600	3.1600		2.4001	3.6287	3.6287	3.6308	4.3535	4.3535	3.6308
H5	1.4847	3.1600	3.1600	2.4001		3.6287	3.6287	4.3535	3.6308	3.6308	4.3535
H6	3.1883	1.4809	5.1708	3.6287	3.6287		6.3110	2.4080	2.4080	5.5397	5.5397
H7	3.1883	5.1708	1.4809	3.6287	3.6287	6.3110		5.5397	5.5397	2.4080	2.4080
H8	3.1720	1.4817	4.1873	3.6308	4.3535	2.4080	5.5397		2.4043	4.6190	3.9439
H9	3.1720	1.4817	4.1873	4.3535	3.6308	2.4080	5.5397	2.4043		3.9439	4.6190
H10	3.1720	4.1873	1.4817	4.3535	3.6308	5.5397	2.4080	4.6190	3.9439		2.4043
H11	3.1720	4.1873	1.4817	3.6308	4.3535	5.5397	2.4080	3.9439	4.6190	2.4043

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	110.919	S1	S2	H8	109.974
S1	S2	H9	109.974	S1	S3	H7	110.919
S1	S3	H10	109.974	S1	S3	H11	109.974
S2	S1	S3	112.124	S2	S1	H4	109.192
S2	S1	H5	109.192	S3	S1	H4	109.192
S3	S1	H5	109.192	H4	S1	H5	107.854
H6	S2	H8	108.735	H6	S2	H9	108.735
H7	S3	H10	108.735	H7	S3	H11	108.735
H8	S2	H9	108.450	H10	S3	H11	108.450

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: CCSD(T)/6-311G**

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: CCSD(T)/6-311G**

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)