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	hartrees
Energy at 0K	-873.353055
Energy at 298.15K	-873.360531
HF Energy	-873.353055
Nuclear repulsion energy	191.610415

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2232	2151	155.32
2	A₁	2223	2143	8.00
3	A₁	2202	2123	67.63
4	A₁	959	924	77.67
5	A₁	933	899	0.36
6	A₁	892	860	185.70
7	A₁	564	544	6.29
8	A₁	379	365	0.63
9	A₁	94	91	1.42
10	A₂	2230	2149	0.00
11	A₂	948	914	0.00
12	A₂	709	684	0.00
13	A₂	412	397	0.00
14	A₂	49	48	0.00
15	B₁	2235	2154	243.32
16	B₁	2211	2130	26.56
17	B₁	953	918	74.42
18	B₁	594	573	10.17
19	B₁	306	295	19.98
20	B₁	74	71	0.09
21	B₂	2230	2149	63.24
22	B₂	2219	2138	112.17
23	B₂	952	918	33.55
24	B₂	878	846	327.14
25	B₂	717	691	294.08
26	B₂	458	441	6.13
27	B₂	429	414	19.01

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.894
Si2	0.000	1.955	-0.421
Si3	0.000	-1.955	-0.421
H4	1.204	0.000	1.776
H5	-1.204	0.000	1.776
H6	0.000	3.172	0.438
H7	0.000	-3.172	0.438
H8	1.208	1.989	-1.291
H9	-1.208	1.989	-1.291
H10	-1.208	-1.989	-1.291
H11	1.208	-1.989	-1.291

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3557	2.3557	1.4921	1.4921	3.2046	3.2046	3.1924	3.1924	3.1924	3.1924
Si2	2.3557		3.9096	3.1771	3.1771	1.4893	5.1981	1.4893	1.4893	4.2159	4.2159
Si3	2.3557	3.9096		3.1771	3.1771	5.1981	1.4893	4.2159	4.2159	1.4893	1.4893
H4	1.4921	3.1771	3.1771		2.4074	3.6470	3.6470	3.6557	4.3795	4.3795	3.6557
H5	1.4921	3.1771	3.1771	2.4074		3.6470	3.6470	4.3795	3.6557	3.6557	4.3795
H6	3.2046	1.4893	5.1981	3.6470	3.6470		6.3439	2.4179	2.4179	5.5756	5.5756
H7	3.2046	5.1981	1.4893	3.6470	3.6470	6.3439		5.5756	5.5756	2.4179	2.4179
H8	3.1924	1.4893	4.2159	3.6557	4.3795	2.4179	5.5756		2.4157	4.6547	3.9788
H9	3.1924	1.4893	4.2159	4.3795	3.6557	2.4179	5.5756	2.4157		3.9788	4.6547
H10	3.1924	4.2159	1.4893	4.3795	3.6557	5.5756	2.4179	4.6547	3.9788		2.4157
H11	3.1924	4.2159	1.4893	3.6557	4.3795	5.5756	2.4179	3.9788	4.6547	2.4157

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	110.894	S1	S2	H8	110.213
S1	S2	H9	110.213	S1	S3	H7	110.894
S1	S3	H10	110.213	S1	S3	H11	110.213
S2	S1	S3	112.159	S2	S1	H4	109.255
S2	S1	H5	109.255	S3	S1	H4	109.255
S3	S1	H5	109.255	H4	S1	H5	107.549
H6	S2	H8	108.533	H6	S2	H9	108.533
H7	S3	H10	108.533	H7	S3	H11	108.533
H8	S2	H9	108.388	H10	S3	H11	108.388

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: TPSSh/TZVP

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	0.077
2	Si	0.212
3	Si	0.212
4	H	-0.053
5	H	-0.053
6	H	-0.062
7	H	-0.062
8	H	-0.068
9	H	-0.068
10	H	-0.068
11	H	-0.068

<r²>	210.129
(<r²>)^1/2	14.496

All results from a given calculation for Si3H8 (trisilane)

using model chemistry: TPSSh/TZVP

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)