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	hartrees
Energy at 0K	-871.853303
Energy at 298.15K	-871.860955
HF Energy	-871.436586
Nuclear repulsion energy	191.441797

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)
1	A₁	2247	2164
2	A₁	2234	2152
3	A₁	2217	2136
4	A₁	957	922
5	A₁	934	899
6	A₁	897	864
7	A₁	567	546
8	A₁	389	375
9	A₁	96	93
10	A₂	2243	2160
11	A₂	949	914
12	A₂	710	684
13	A₂	421	406
14	A₂	90	86
15	B₁	2247	2165
16	B₁	2228	2146
17	B₁	953	918
18	B₁	597	575
19	B₁	314	302
20	B₁	102	99
21	B₂	2246	2163
22	B₂	2230	2148
23	B₂	950	915
24	B₂	884	851
25	B₂	721	694
26	B₂	467	450
27	B₂	437	421

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.914
Si2	0.000	1.943	-0.428
Si3	0.000	-1.943	-0.428
H4	1.210	0.000	1.795
H5	-1.210	0.000	1.795
H6	0.000	3.180	0.409
H7	0.000	-3.180	0.409
H8	1.212	1.954	-1.302
H9	-1.212	1.954	-1.302
H10	-1.212	-1.954	-1.302
H11	1.212	-1.954	-1.302

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3614	2.3614	1.4967	1.4967	3.2200	3.2200	3.1936	3.1936	3.1936	3.1936
Si2	2.3614		3.8858	3.1907	3.1907	1.4936	5.1909	1.4941	1.4941	4.1739	4.1739
Si3	2.3614	3.8858		3.1907	3.1907	5.1909	1.4936	4.1739	4.1739	1.4941	1.4941
H4	1.4967	3.1907	3.1907		2.4201	3.6740	3.6740	3.6620	4.3904	4.3904	3.6620
H5	1.4967	3.1907	3.1907	2.4201		3.6740	3.6740	4.3904	3.6620	3.6620	4.3904
H6	3.2200	1.4936	5.1909	3.6740	3.6740		6.3602	2.4284	2.4284	5.5461	5.5461
H7	3.2200	5.1909	1.4936	3.6740	3.6740	6.3602		5.5461	5.5461	2.4284	2.4284
H8	3.1936	1.4941	4.1739	3.6620	4.3904	2.4284	5.5461		2.4237	4.5994	3.9090
H9	3.1936	1.4941	4.1739	4.3904	3.6620	2.4284	5.5461	2.4237		3.9090	4.5994
H10	3.1936	4.1739	1.4941	4.3904	3.6620	5.5461	2.4284	4.5994	3.9090		2.4237
H11	3.1936	4.1739	1.4941	3.6620	4.3904	5.5461	2.4284	3.9090	4.5994	2.4237

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	111.288	S1	S2	H8	109.804
S1	S2	H9	109.804	S1	S3	H7	111.288
S1	S3	H10	109.804	S1	S3	H11	109.804
S2	S1	S3	110.727	S2	S1	H4	109.542
S2	S1	H5	109.542	S3	S1	H4	109.542
S3	S1	H5	109.542	H4	S1	H5	107.894
H6	S2	H8	108.740	H6	S2	H9	108.740
H7	S3	H10	108.740	H7	S3	H11	108.740
H8	S2	H9	108.404	H10	S3	H11	108.404

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: CCSD(T)=FULL/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(T)=FULL/cc-pVDZ

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)