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	hartrees
Energy at 0K	-16.409343
Energy at 298.15K	-16.416856
HF Energy	-16.409343
Nuclear repulsion energy	34.099759

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2201	2126	199.30
2	A₁	2188	2113	0.69
3	A₁	2171	2097	83.28
4	A₁	945	913	59.09
5	A₁	924	893	8.12
6	A₁	885	855	182.59
7	A₁	566	546	3.59
8	A₁	378	365	0.42
9	A₁	97	94	0.89
10	A₂	2200	2125	0.00
11	A₂	934	902	0.00
12	A₂	707	683	0.00
13	A₂	420	406	0.00
14	A₂	76	73	0.00
15	B₁	2206	2131	317.83
16	B₁	2183	2108	21.23
17	B₁	938	906	71.59
18	B₁	598	578	7.19
19	B₁	315	304	9.53
20	B₁	96	93	0.03
21	B₂	2198	2123	59.95
22	B₂	2182	2107	149.19
23	B₂	937	905	34.12
24	B₂	875	845	296.49
25	B₂	719	694	314.18
26	B₂	454	439	6.61
27	B₂	433	418	8.99

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.916
Si2	0.000	1.954	-0.429
Si3	0.000	-1.954	-0.429
H4	1.209	0.000	1.808
H5	-1.209	0.000	1.808
H6	0.000	3.194	0.414
H7	0.000	-3.194	0.414
H8	1.214	1.982	-1.310
H9	-1.214	1.982	-1.310
H10	-1.214	-1.982	-1.310
H11	1.214	-1.982	-1.310

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3720	2.3720	1.5024	1.5024	3.2335	3.2335	3.2181	3.2181	3.2181	3.2181
Si2	2.3720		3.9072	3.2068	3.2068	1.5003	5.2166	1.4999	1.4999	4.2117	4.2117
Si3	2.3720	3.9072		3.2068	3.2068	5.2166	1.5003	4.2117	4.2117	1.4999	1.4999
H4	1.5024	3.2068	3.2068		2.4179	3.6889	3.6889	3.6943	4.4180	4.4180	3.6943
H5	1.5024	3.2068	3.2068	2.4179		3.6889	3.6889	4.4180	3.6943	3.6943	4.4180
H6	3.2335	1.5003	5.2166	3.6889	3.6889		6.3887	2.4321	2.4321	5.5893	5.5893
H7	3.2335	5.2166	1.5003	3.6889	3.6889	6.3887		5.5893	5.5893	2.4321	2.4321
H8	3.2181	1.4999	4.2117	3.6943	4.4180	2.4321	5.5893		2.4281	4.6486	3.9641
H9	3.2181	1.4999	4.2117	4.4180	3.6943	2.4321	5.5893	2.4281		3.9641	4.6486
H10	3.2181	4.2117	1.4999	4.4180	3.6943	5.5893	2.4321	4.6486	3.9641		2.4281
H11	3.2181	4.2117	1.4999	3.6943	4.4180	5.5893	2.4321	3.9641	4.6486	2.4281

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	111.240	S1	S2	H8	110.395
S1	S2	H9	110.395	S1	S3	H7	111.240
S1	S3	H10	110.395	S1	S3	H11	110.395
S2	S1	S3	110.896	S2	S1	H4	109.677
S2	S1	H5	109.677	S3	S1	H4	109.677
S3	S1	H5	109.677	H4	S1	H5	107.161
H6	S2	H8	108.318	H6	S2	H9	108.318
H7	S3	H10	108.318	H7	S3	H11	108.318
H8	S2	H9	108.078	H10	S3	H11	108.078

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: B3LYP/CEP-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	-0.054
2	Si	-0.084
3	Si	-0.084
4	H	0.032
5	H	0.032
6	H	0.029
7	H	0.029
8	H	0.025
9	H	0.025
10	H	0.025
11	H	0.025

<r²>	120.466
(<r²>)^1/2	10.976

All results from a given calculation for Si3H8 (trisilane)

using model chemistry: B3LYP/CEP-31G*

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)