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	hartrees
Energy at 0K	-871.851086
Energy at 298.15K	-871.858686
HF Energy	-871.440333
Nuclear repulsion energy	191.121592

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)
1	A₁	2220	2220
2	A₁	2209	2209
3	A₁	2190	2190
4	A₁	947	947
5	A₁	925	925
6	A₁	883	883
7	A₁	563	563
8	A₁	386	386
9	A₁	92	92
10	A₂	2216	2216
11	A₂	942	942
12	A₂	707	707
13	A₂	417	417
14	A₂	77	77
15	B₁	2222	2222
16	B₁	2200	2200
17	B₁	947	947
18	B₁	594	594
19	B₁	318	318
20	B₁	98	98
21	B₂	2219	2219
22	B₂	2205	2205
23	B₂	940	940
24	B₂	871	871
25	B₂	712	712
26	B₂	462	462
27	B₂	431	431

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.922
Si2	0.000	1.942	-0.432
Si3	0.000	-1.942	-0.432
H4	1.214	0.000	1.800
H5	-1.214	0.000	1.800
H6	0.000	3.184	0.401
H7	0.000	-3.184	0.401
H8	1.214	1.947	-1.305
H9	-1.214	1.947	-1.305
H10	-1.214	-1.947	-1.305
H11	1.214	-1.947	-1.305

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3680	2.3680	1.4984	1.4984	3.2264	3.2264	3.1984	3.1984	3.1984	3.1984
Si2	2.3680		3.8849	3.1986	3.1986	1.4951	5.1937	1.4956	1.4956	4.1675	4.1675
Si3	2.3680	3.8849		3.1986	3.1986	5.1937	1.4951	4.1675	4.1675	1.4956	1.4956
H4	1.4984	3.1986	3.1986		2.4283	3.6837	3.6837	3.6659	4.3972	4.3972	3.6659
H5	1.4984	3.1986	3.1986	2.4283		3.6837	3.6837	4.3972	3.6659	3.6659	4.3972
H6	3.2264	1.4951	5.1937	3.6837	3.6837		6.3679	2.4321	2.4321	5.5424	5.5424
H7	3.2264	5.1937	1.4951	3.6837	3.6837	6.3679		5.5424	5.5424	2.4321	2.4321
H8	3.1984	1.4956	4.1675	3.6659	4.3972	2.4321	5.5424		2.4281	4.5898	3.8949
H9	3.1984	1.4956	4.1675	4.3972	3.6659	2.4321	5.5424	2.4281		3.8949	4.5898
H10	3.1984	4.1675	1.4956	4.3972	3.6659	5.5424	2.4321	4.5898	3.8949		2.4281
H11	3.1984	4.1675	1.4956	3.6659	4.3972	5.5424	2.4321	3.8949	4.5898	2.4281

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	111.252	S1	S2	H8	109.678
S1	S2	H9	109.678	S1	S3	H7	111.252
S1	S3	H10	109.678	S1	S3	H11	109.678
S2	S1	S3	110.230	S2	S1	H4	109.582
S2	S1	H5	109.582	S3	S1	H4	109.582
S3	S1	H5	109.582	H4	S1	H5	108.250
H6	S2	H8	108.823	H6	S2	H9	108.823
H7	S3	H10	108.823	H7	S3	H11	108.823
H8	S2	H9	108.534	H10	S3	H11	108.534

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: MP4/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: MP4/daug-cc-pVDZ

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)