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	hartrees
Energy at 0K	-873.340192
Energy at 298.15K	-873.347582
HF Energy	-873.340192
Nuclear repulsion energy	192.723930

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2225	2129	152.48
2	A₁	2214	2119	6.37
3	A₁	2195	2101	64.74
4	A₁	945	905	74.44
5	A₁	919	879	0.00
6	A₁	875	837	179.18
7	A₁	557	533	6.03
8	A₁	387	370	0.74
9	A₁	92	88	1.49
10	A₂	2223	2127	0.00
11	A₂	934	894	0.00
12	A₂	700	670	0.00
13	A₂	406	389	0.00
14	A₂	39	37	0.00
15	B₁	2228	2132	237.83
16	B₁	2205	2110	22.17
17	B₁	939	899	70.73
18	B₁	584	559	10.47
19	B₁	302	289	20.17
20	B₁	66	63	0.13
21	B₂	2223	2127	58.52
22	B₂	2210	2114	113.42
23	B₂	939	898	32.44
24	B₂	861	824	309.54
25	B₂	702	671	290.24
26	B₂	466	446	4.56
27	B₂	424	406	22.93

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.890
Si2	0.000	1.939	-0.419
Si3	0.000	-1.939	-0.419
H4	1.204	0.000	1.769
H5	-1.204	0.000	1.769
H6	0.000	3.154	0.438
H7	0.000	-3.154	0.438
H8	1.207	1.970	-1.288
H9	-1.207	1.970	-1.288
H10	-1.207	-1.970	-1.288
H11	1.207	-1.970	-1.288

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3389	2.3389	1.4905	1.4905	3.1867	3.1867	3.1749	3.1749	3.1749	3.1749
Si2	2.3389		3.8772	3.1611	3.1611	1.4876	5.1647	1.4876	1.4876	4.1820	4.1820
Si3	2.3389	3.8772		3.1611	3.1611	5.1647	1.4876	4.1820	4.1820	1.4876	1.4876
H4	1.4905	3.1611	3.1611		2.4074	3.6291	3.6291	3.6365	4.3629	4.3629	3.6365
H5	1.4905	3.1611	3.1611	2.4074		3.6291	3.6291	4.3629	3.6365	3.6365	4.3629
H6	3.1867	1.4876	5.1647	3.6291	3.6291		6.3090	2.4164	2.4164	5.5405	5.5405
H7	3.1867	5.1647	1.4876	3.6291	3.6291	6.3090		5.5405	5.5405	2.4164	2.4164
H8	3.1749	1.4876	4.1820	3.6365	4.3629	2.4164	5.5405		2.4138	4.6207	3.9401
H9	3.1749	1.4876	4.1820	4.3629	3.6365	2.4164	5.5405	2.4138		3.9401	4.6207
H10	3.1749	4.1820	1.4876	4.3629	3.6365	5.5405	2.4164	4.6207	3.9401		2.4138
H11	3.1749	4.1820	1.4876	3.6365	4.3629	5.5405	2.4164	3.9401	4.6207	2.4138

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	110.802	S1	S2	H8	110.144
S1	S2	H9	110.144	S1	S3	H7	110.802
S1	S3	H10	110.144	S1	S3	H11	110.144
S2	S1	S3	111.959	S2	S1	H4	109.266
S2	S1	H5	109.266	S3	S1	H4	109.266
S3	S1	H5	109.266	H4	S1	H5	107.724
H6	S2	H8	108.620	H6	S2	H9	108.620
H7	S3	H10	108.620	H7	S3	H11	108.620
H8	S2	H9	108.451	H10	S3	H11	108.451

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: B1B95/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	0.071
2	Si	0.218
3	Si	0.218
4	H	-0.052
5	H	-0.052
6	H	-0.064
7	H	-0.064
8	H	-0.069
9	H	-0.069
10	H	-0.069
11	H	-0.069

<r²>	207.594
(<r²>)^1/2	14.408

All results from a given calculation for Si3H8 (trisilane)

using model chemistry: B1B95/TZVP

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)