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	hartrees
Energy at 0K	-871.482526
Energy at 298.15K	-871.490518
HF Energy	-871.482526
Nuclear repulsion energy	190.937391

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)	Raman Act (Å⁴/u)	Dep P	Dep U
1	A₁	2308	2100	0.01	685.25	0.00	0.01
2	A₁	2302	2095	245.93	143.32	0.67	0.80
3	A₁	2278	2073	94.74	103.08	0.36	0.53
4	A₁	1034	941	78.02	4.07	0.70	0.83
5	A₁	1015	924	35.19	24.67	0.66	0.80
6	A₁	980	892	232.56	7.41	0.69	0.81
7	A₁	615	559	9.52	6.29	0.59	0.74
8	A₁	394	359	0.68	37.29	0.11	0.19
9	A₁	107	97	1.80	1.91	0.58	0.73
10	A₂	2296	2090	0.00	23.08	0.75	0.86
11	A₂	1023	931	0.00	26.05	0.75	0.86
12	A₂	764	695	0.00	11.21	0.75	0.86
13	A₂	451	411	0.00	0.06	0.75	0.86
14	A₂	83	76	0.00	0.02	0.75	0.86
15	B₁	2303	2096	361.57	76.21	0.75	0.86
16	B₁	2279	2074	35.87	190.88	0.75	0.86
17	B₁	1027	934	105.05	0.50	0.75	0.86
18	B₁	650	592	11.28	1.45	0.75	0.86
19	B₁	343	312	27.90	0.00	0.75	0.86
20	B₁	101	92	0.05	0.05	0.75	0.86
21	B₂	2301	2094	248.30	47.09	0.75	0.86
22	B₂	2298	2091	0.13	40.10	0.75	0.86
23	B₂	1024	932	41.19	0.00	0.75	0.86
24	B₂	973	885	397.96	0.33	0.75	0.86
25	B₂	798	726	368.36	0.49	0.75	0.86
26	B₂	484	440	24.32	3.39	0.75	0.86
27	B₂	465	423	8.14	9.29	0.75	0.86

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.897
Si2	0.000	1.970	-0.423
Si3	0.000	-1.970	-0.423
H4	1.199	0.000	1.772
H5	-1.199	0.000	1.772
H6	0.000	3.174	0.439
H7	0.000	-3.174	0.439
H8	1.202	2.006	-1.287
H9	-1.202	2.006	-1.287
H10	-1.202	-2.006	-1.287
H11	1.202	-2.006	-1.287

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3715	2.3715	1.4844	1.4844	3.2074	3.2074	3.2005	3.2005	3.2005	3.2005
Si2	2.3715		3.9399	3.1838	3.1838	1.4808	5.2161	1.4813	1.4813	4.2428	4.2428
Si3	2.3715	3.9399		3.1838	3.1838	5.2161	1.4808	4.2428	4.2428	1.4813	1.4813
H4	1.4844	3.1838	3.1838		2.3987	3.6460	3.6460	3.6585	4.3763	4.3763	3.6585
H5	1.4844	3.1838	3.1838	2.3987		3.6460	3.6460	4.3763	3.6585	3.6585	4.3763
H6	3.2074	1.4808	5.2161	3.6460	3.6460		6.3489	2.4063	2.4063	5.5912	5.5912
H7	3.2074	5.2161	1.4808	3.6460	3.6460	6.3489		5.5912	5.5912	2.4063	2.4063
H8	3.2005	1.4813	4.2428	3.6585	4.3763	2.4063	5.5912		2.4045	4.6774	4.0120
H9	3.2005	1.4813	4.2428	4.3763	3.6585	2.4063	5.5912	2.4045		4.0120	4.6774
H10	3.2005	4.2428	1.4813	4.3763	3.6585	5.5912	2.4063	4.6774	4.0120		2.4045
H11	3.2005	4.2428	1.4813	3.6585	4.3763	5.5912	2.4063	4.0120	4.6774	2.4045

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	110.600	S1	S2	H8	110.193
S1	S2	H9	110.193	S1	S3	H7	110.600
S1	S3	H10	110.193	S1	S3	H11	110.193
S2	S1	S3	112.342	S2	S1	H4	109.148
S2	S1	H5	109.148	S3	S1	H4	109.148
S3	S1	H5	109.148	H4	S1	H5	107.801
H6	S2	H8	108.650	H6	S2	H9	108.650
H7	S3	H10	108.650	H7	S3	H11	108.650
H8	S2	H9	108.502	H10	S3	H11	108.502

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: HF/cc-pVTZ

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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Number	Element	Mulliken
1	Si	0.048
2	Si	0.127
3	Si	0.127
4	H	-0.037
5	H	-0.037
6	H	-0.037
7	H	-0.037
8	H	-0.038
9	H	-0.038
10	H	-0.038
11	H	-0.038

<r²>	212.905
(<r²>)^1/2	14.591

All results from a given calculation for Si3H8 (trisilane)

using model chemistry: HF/cc-pVTZ

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)