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	hartrees
Energy at 0K	-871.694883
Energy at 298.15K	-871.702525
HF Energy	-871.385498
Nuclear repulsion energy	192.182831

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)
1	A₁	2250	2164
2	A₁	2236	2151
3	A₁	2212	2128
4	A₁	956	919
5	A₁	933	898
6	A₁	901	867
7	A₁	578	556
8	A₁	401	386
9	A₁	100	96
10	A₂	2245	2160
11	A₂	945	909
12	A₂	720	693
13	A₂	427	411
14	A₂	76	73
15	B₁	2250	2164
16	B₁	2223	2139
17	B₁	949	913
18	B₁	611	587
19	B₁	319	306
20	B₁	96	92
21	B₂	2248	2163
22	B₂	2231	2146
23	B₂	947	911
24	B₂	893	859
25	B₂	743	715
26	B₂	484	466
27	B₂	447	430

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.887
Si2	0.000	1.945	-0.417
Si3	0.000	-1.945	-0.417
H4	1.209	0.000	1.773
H5	-1.209	0.000	1.773
H6	0.000	3.168	0.443
H7	0.000	-3.168	0.443
H8	1.212	1.978	-1.293
H9	-1.212	1.978	-1.293
H10	-1.212	-1.978	-1.293
H11	1.212	-1.978	-1.293

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3421	2.3421	1.4992	1.4992	3.1985	3.1985	3.1830	3.1830	3.1830	3.1830
Si2	2.3421		3.8904	3.1694	3.1694	1.4949	5.1847	1.4953	1.4953	4.1980	4.1980
Si3	2.3421	3.8904		3.1694	3.1694	5.1847	1.4949	4.1980	4.1980	1.4953	1.4953
H4	1.4992	3.1694	3.1694		2.4185	3.6421	3.6421	3.6485	4.3788	4.3788	3.6485
H5	1.4992	3.1694	3.1694	2.4185		3.6421	3.6421	4.3788	3.6485	3.6485	4.3788
H6	3.1985	1.4949	5.1847	3.6421	3.6421		6.3351	2.4286	2.4286	5.5637	5.5637
H7	3.1985	5.1847	1.4949	3.6421	3.6421	6.3351		5.5637	5.5637	2.4286	2.4286
H8	3.1830	1.4953	4.1980	3.6485	4.3788	2.4286	5.5637		2.4238	4.6388	3.9552
H9	3.1830	1.4953	4.1980	4.3788	3.6485	2.4286	5.5637	2.4238		3.9552	4.6388
H10	3.1830	4.1980	1.4953	4.3788	3.6485	5.5637	2.4286	4.6388	3.9552		2.4238
H11	3.1830	4.1980	1.4953	3.6485	4.3788	5.5637	2.4286	3.9552	4.6388	2.4238

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	111.007	S1	S2	H8	110.124
S1	S2	H9	110.124	S1	S3	H7	111.007
S1	S3	H10	110.124	S1	S3	H11	110.124
S2	S1	S3	112.308	S2	S1	H4	109.222
S2	S1	H5	109.222	S3	S1	H4	109.222
S3	S1	H5	109.222	H4	S1	H5	107.529
H6	S2	H8	108.620	H6	S2	H9	108.620
H7	S3	H10	108.620	H7	S3	H11	108.620
H8	S2	H9	108.278	H10	S3	H11	108.278

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: CCSD(T)/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: CCSD(T)/6-31G*

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)