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	hartrees
Energy at 0K	-871.844039
Energy at 298.15K	-871.851663
HF Energy	-871.440359
Nuclear repulsion energy	191.045728

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2219	2219	124.70
2	A₁	2209	2209	34.78
3	A₁	2191	2191	74.65
4	A₁	951	951	70.76
5	A₁	931	931	1.88
6	A₁	890	890	201.19
7	A₁	567	567	6.72
8	A₁	387	387	0.61
9	A₁	94	94	1.50
10	A₂	2213	2213	0.00
11	A₂	945	945	0.00
12	A₂	710	710	0.00
13	A₂	420	420	0.00
14	A₂	72	72	0.00
15	B₁	2220	2220	261.14
16	B₁	2200	2200	15.40
17	B₁	950	950	77.01
18	B₁	599	599	9.76
19	B₁	321	321	21.80
20	B₁	96	96	0.07
21	B₂	2217	2217	101.92
22	B₂	2205	2205	82.52
23	B₂	944	944	38.86
24	B₂	879	879	310.98
25	B₂	720	720	303.35
26	B₂	463	463	8.99
27	B₂	436	436	18.56

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.921
Si2	0.000	1.945	-0.431
Si3	0.000	-1.945	-0.431
H4	1.213	0.000	1.799
H5	-1.213	0.000	1.799
H6	0.000	3.185	0.404
H7	0.000	-3.185	0.404
H8	1.214	1.952	-1.305
H9	-1.214	1.952	-1.305
H10	-1.214	-1.952	-1.305
H11	1.214	-1.952	-1.305

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3688	2.3688	1.4978	1.4978	3.2264	3.2264	3.1999	3.1999	3.1999	3.1999
Si2	2.3688		3.8899	3.1984	3.1984	1.4947	5.1972	1.4955	1.4955	4.1744	4.1744
Si3	2.3688	3.8899		3.1984	3.1984	5.1972	1.4947	4.1744	4.1744	1.4955	1.4955
H4	1.4978	3.1984	3.1984		2.4266	3.6826	3.6826	3.6669	4.3974	4.3974	3.6669
H5	1.4978	3.1984	3.1984	2.4266		3.6826	3.6826	4.3974	3.6669	3.6669	4.3974
H6	3.2264	1.4947	5.1972	3.6826	3.6826		6.3694	2.4312	2.4312	5.5482	5.5482
H7	3.2264	5.1972	1.4947	3.6826	3.6826	6.3694		5.5482	5.5482	2.4312	2.4312
H8	3.1999	1.4955	4.1744	3.6669	4.3974	2.4312	5.5482		2.4280	4.5981	3.9048
H9	3.1999	1.4955	4.1744	4.3974	3.6669	2.4312	5.5482	2.4280		3.9048	4.5981
H10	3.1999	4.1744	1.4955	4.3974	3.6669	5.5482	2.4312	4.5981	3.9048		2.4280
H11	3.1999	4.1744	1.4955	3.6669	4.3974	5.5482	2.4312	3.9048	4.5981	2.4280

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	111.231	S1	S2	H8	109.723
S1	S2	H9	109.723	S1	S3	H7	111.231
S1	S3	H10	109.723	S1	S3	H11	109.723
S2	S1	S3	110.381	S2	S1	H4	109.556
S2	S1	H5	109.556	S3	S1	H4	109.556
S3	S1	H5	109.556	H4	S1	H5	108.202
H6	S2	H8	108.789	H6	S2	H9	108.789
H7	S3	H10	108.789	H7	S3	H11	108.789
H8	S2	H9	108.533	H10	S3	H11	108.533

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: CCSD/daug-cc-pVDZ

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/daug-cc-pVDZ

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)