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	hartrees
Energy at 0K	-871.489004
Energy at 298.15K	-871.497019
HF Energy	-871.489004
Nuclear repulsion energy	191.169501

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	2307	2107	0.23	682.65	0.00	0.00
2	A₁	2300	2100	246.87	135.96	0.71	0.83
3	A₁	2277	2079	93.01	102.66	0.36	0.53
4	A₁	1035	945	76.16	3.82	0.69	0.82
5	A₁	1017	928	39.40	23.88	0.66	0.79
6	A₁	982	897	231.00	7.60	0.69	0.82
7	A₁	615	562	9.64	6.14	0.59	0.74
8	A₁	394	360	0.70	36.80	0.11	0.19
9	A₁	107	97	1.82	1.89	0.58	0.73
10	A₂	2295	2095	0.00	22.76	0.75	0.86
11	A₂	1024	935	0.00	25.22	0.75	0.86
12	A₂	764	698	0.00	10.90	0.75	0.86
13	A₂	451	412	0.00	0.05	0.75	0.86
14	A₂	84	77	0.00	0.02	0.75	0.86
15	B₁	2301	2101	360.34	74.79	0.75	0.86
16	B₁	2277	2079	35.80	186.69	0.75	0.86
17	B₁	1028	938	105.58	0.53	0.75	0.86
18	B₁	651	594	11.40	1.48	0.75	0.86
19	B₁	343	313	28.25	0.00	0.75	0.86
20	B₁	103	94	0.05	0.05	0.75	0.86
21	B₂	2301	2101	244.20	32.49	0.75	0.86
22	B₂	2297	2097	4.18	52.79	0.75	0.86
23	B₂	1024	935	41.16	0.00	0.75	0.86
24	B₂	975	890	400.37	0.35	0.75	0.86
25	B₂	800	731	366.80	0.48	0.75	0.86
26	B₂	484	442	24.84	3.21	0.75	0.86
27	B₂	465	425	7.86	9.25	0.75	0.86

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.896
Si2	0.000	1.968	-0.422
Si3	0.000	-1.968	-0.422
H4	1.197	0.000	1.770
H5	-1.197	0.000	1.770
H6	0.000	3.171	0.438
H7	0.000	-3.171	0.438
H8	1.200	2.004	-1.286
H9	-1.200	2.004	-1.286
H10	-1.200	-2.004	-1.286
H11	1.200	-2.004	-1.286

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3688	2.3688	1.4821	1.4821	3.2037	3.2037	3.1966	3.1966	3.1966	3.1966
Si2	2.3688		3.9358	3.1798	3.1798	1.4785	5.2100	1.4791	1.4791	4.2383	4.2383
Si3	2.3688	3.9358		3.1798	3.1798	5.2100	1.4785	4.2383	4.2383	1.4791	1.4791
H4	1.4821	3.1798	3.1798		2.3950	3.6416	3.6416	3.6541	4.3705	4.3705	3.6541
H5	1.4821	3.1798	3.1798	2.3950		3.6416	3.6416	4.3705	3.6541	3.6541	4.3705
H6	3.2037	1.4785	5.2100	3.6416	3.6416		6.3414	2.4024	2.4024	5.5847	5.5847
H7	3.2037	5.2100	1.4785	3.6416	3.6416	6.3414		5.5847	5.5847	2.4024	2.4024
H8	3.1966	1.4791	4.2383	3.6541	4.3705	2.4024	5.5847		2.4006	4.6721	4.0082
H9	3.1966	1.4791	4.2383	4.3705	3.6541	2.4024	5.5847	2.4006		4.0082	4.6721
H10	3.1966	4.2383	1.4791	4.3705	3.6541	5.5847	2.4024	4.6721	4.0082		2.4006
H11	3.1966	4.2383	1.4791	3.6541	4.3705	5.5847	2.4024	4.0082	4.6721	2.4006

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	110.617	S1	S2	H8	110.201
S1	S2	H9	110.201	S1	S3	H7	110.617
S1	S3	H10	110.201	S1	S3	H11	110.201
S2	S1	S3	112.353	S2	S1	H4	109.148
S2	S1	H5	109.148	S3	S1	H4	109.148
S3	S1	H5	109.148	H4	S1	H5	107.791
H6	S2	H8	108.639	H6	S2	H9	108.639
H7	S3	H10	108.639	H7	S3	H11	108.639
H8	S2	H9	108.488	H10	S3	H11	108.488

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: HF/cc-pCVTZ

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	0.076
2	Si	0.175
3	Si	0.175
4	H	-0.050
5	H	-0.050
6	H	-0.052
7	H	-0.052
8	H	-0.055
9	H	-0.055
10	H	-0.055
11	H	-0.055

<r²>	212.456
(<r²>)^1/2	14.576

All results from a given calculation for Si3H8 (trisilane)

using model chemistry: HF/cc-pCVTZ

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)