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	hartrees
Energy at 0K	-873.317220
Energy at 298.15K
HF Energy	-873.317220
Nuclear repulsion energy	193.173971

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2201	2201	31.29
2	A₁	2198	2198	124.72
3	A₁	2170	2170	61.33
4	A₁	959	959	65.83
5	A₁	935	935	2.42
6	A₁	898	898	182.82
7	A₁	570	570	6.06
8	A₁	393	393	0.65
9	A₁	97	97	1.38
10	A₂	2195	2195	0.00
11	A₂	953	953	0.00
12	A₂	717	717	0.00
13	A₂	424	424	0.00
14	A₂	27i	27i	0.00
15	B₁	2200	2200	226.14
16	B₁	2173	2173	30.08
17	B₁	957	957	70.46
18	B₁	600	600	9.94
19	B₁	308	308	19.43
20	B₁	73	73	0.00
21	B₂	2199	2199	145.90
22	B₂	2194	2194	27.38
23	B₂	951	951	36.82
24	B₂	887	887	298.99
25	B₂	727	727	275.23
26	B₂	469	469	5.24
27	B₂	431	431	15.38

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.904
Si2	0.000	1.925	-0.424
Si3	0.000	-1.925	-0.424
H4	1.200	0.000	1.778
H5	-1.200	0.000	1.778
H6	0.000	3.150	0.410
H7	0.000	-3.150	0.410
H8	1.202	1.941	-1.290
H9	-1.202	1.941	-1.290
H10	-1.202	-1.941	-1.290
H11	1.202	-1.941	-1.290

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3390	2.3390	1.4846	1.4846	3.1884	3.1884	3.1668	3.1668	3.1668	3.1668
Si2	2.3390		3.8510	3.1615	3.1615	1.4816	5.1436	1.4821	1.4821	4.1409	4.1409
Si3	2.3390	3.8510		3.1615	3.1615	5.1436	1.4816	4.1409	4.1409	1.4821	1.4821
H4	1.4846	3.1615	3.1615		2.4006	3.6377	3.6377	3.6305	4.3535	4.3535	3.6305
H5	1.4846	3.1615	3.1615	2.4006		3.6377	3.6377	4.3535	3.6305	3.6305	4.3535
H6	3.1884	1.4816	5.1436	3.6377	3.6377		6.3000	2.4082	2.4082	5.5006	5.5006
H7	3.1884	5.1436	1.4816	3.6377	3.6377	6.3000		5.5006	5.5006	2.4082	2.4082
H8	3.1668	1.4821	4.1409	3.6305	4.3535	2.4082	5.5006		2.4048	4.5666	3.8821
H9	3.1668	1.4821	4.1409	4.3535	3.6305	2.4082	5.5006	2.4048		3.8821	4.5666
H10	3.1668	4.1409	1.4821	4.3535	3.6305	5.5006	2.4082	4.5666	3.8821		2.4048
H11	3.1668	4.1409	1.4821	3.6305	4.3535	5.5006	2.4082	3.8821	4.5666	2.4048

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	111.143	S1	S2	H8	109.909
S1	S2	H9	109.909	S1	S3	H7	111.143
S1	S3	H10	109.909	S1	S3	H11	109.909
S2	S1	S3	110.817	S2	S1	H4	109.517
S2	S1	H5	109.517	S3	S1	H4	109.517
S3	S1	H5	109.517	H4	S1	H5	107.902
H6	S2	H8	108.692	H6	S2	H9	108.692
H7	S3	H10	108.692	H7	S3	H11	108.692
H8	S2	H9	108.437	H10	S3	H11	108.437

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: wB97X-D/aug-cc-pVQZ

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	0.343
2	Si	0.137
3	Si	0.137
4	H	-0.123
5	H	-0.123
6	H	-0.082
7	H	-0.082
8	H	-0.052
9	H	-0.052
10	H	-0.052
11	H	-0.052

<r²>	206.033
(<r²>)^1/2	14.354

All results from a given calculation for Si3H8 (trisilane)

using model chemistry: wB97X-D/aug-cc-pVQZ

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)