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	hartrees
Energy at 0K	-873.282978
Energy at 298.15K	-873.290549
HF Energy	-873.282978
Nuclear repulsion energy	191.539754

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2241	2152	212.84
2	A₁	2230	2141	7.44
3	A₁	2206	2118	88.07
4	A₁	957	919	75.49
5	A₁	935	897	5.48
6	A₁	898	862	186.73
7	A₁	570	548	7.61
8	A₁	383	368	0.74
9	A₁	99	95	1.43
10	A₂	2239	2150	0.00
11	A₂	947	909	0.00
12	A₂	719	691	0.00
13	A₂	428	411	0.00
14	A₂	69	67	0.00
15	B₁	2244	2155	331.63
16	B₁	2216	2128	41.80
17	B₁	951	913	79.39
18	B₁	601	577	10.57
19	B₁	320	307	19.93
20	B₁	91	87	0.05
21	B₂	2239	2150	76.16
22	B₂	2224	2136	145.39
23	B₂	949	911	32.70
24	B₂	886	851	325.46
25	B₂	734	705	330.27
26	B₂	466	448	6.79
27	B₂	443	426	15.46

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.884
Si2	0.000	1.962	-0.417
Si3	0.000	-1.962	-0.417
H4	1.200	0.000	1.771
H5	-1.200	0.000	1.771
H6	0.000	3.173	0.450
H7	0.000	-3.173	0.450
H8	1.206	2.009	-1.289
H9	-1.206	2.009	-1.289
H10	-1.206	-2.009	-1.289
H11	1.206	-2.009	-1.289

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3538	2.3538	1.4926	1.4926	3.2026	3.2026	3.1958	3.1958	3.1958	3.1958
Si2	2.3538		3.9233	3.1742	3.1742	1.4893	5.2072	1.4893	1.4893	4.2403	4.2403
Si3	2.3538	3.9233		3.1742	3.1742	5.2072	1.4893	4.2403	4.2403	1.4893	1.4893
H4	1.4926	3.1742	3.1742		2.4009	3.6407	3.6407	3.6606	4.3808	4.3808	3.6606
H5	1.4926	3.1742	3.1742	2.4009		3.6407	3.6407	4.3808	3.6606	3.6606	4.3808
H6	3.2026	1.4893	5.2072	3.6407	3.6407		6.3459	2.4153	2.4153	5.5972	5.5972
H7	3.2026	5.2072	1.4893	3.6407	3.6407	6.3459		5.5972	5.5972	2.4153	2.4153
H8	3.1958	1.4893	4.2403	3.6606	4.3808	2.4153	5.5972		2.4121	4.6860	4.0175
H9	3.1958	1.4893	4.2403	4.3808	3.6606	2.4153	5.5972	2.4121		4.0175	4.6860
H10	3.1958	4.2403	1.4893	4.3808	3.6606	5.5972	2.4153	4.6860	4.0175		2.4121
H11	3.1958	4.2403	1.4893	3.6606	4.3808	5.5972	2.4153	4.0175	4.6860	2.4121

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	110.876	S1	S2	H8	110.495
S1	S2	H9	110.495	S1	S3	H7	110.876
S1	S3	H10	110.495	S1	S3	H11	110.495
S2	S1	S3	112.901	S2	S1	H4	109.173
S2	S1	H5	109.173	S3	S1	H4	109.173
S3	S1	H5	109.173	H4	S1	H5	107.080
H6	S2	H8	108.366	H6	S2	H9	108.366
H7	S3	H10	108.366	H7	S3	H11	108.366
H8	S2	H9	108.157	H10	S3	H11	108.157

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: B3LYP/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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Number	Element	Mulliken
1	Si	0.056
2	Si	0.176
3	Si	0.176
4	H	-0.046
5	H	-0.046
6	H	-0.052
7	H	-0.052
8	H	-0.053
9	H	-0.053
10	H	-0.053
11	H	-0.053

<r²>	210.733
(<r²>)^1/2	14.517

All results from a given calculation for Si3H8 (trisilane)

using model chemistry: B3LYP/6-31G*

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)