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	hartrees
Energy at 0K	-873.384086
Energy at 298.15K	-873.391758
HF Energy	-873.384086
Nuclear repulsion energy	192.007487

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2213	2137	152.90
2	A₁	2206	2130	5.89
3	A₁	2182	2107	63.78
4	A₁	959	925	72.42
5	A₁	935	902	2.21
6	A₁	898	867	182.24
7	A₁	568	548	6.17
8	A₁	377	364	0.53
9	A₁	98	95	1.31
10	A₂	2211	2135	0.00
11	A₂	951	918	0.00
12	A₂	713	688	0.00
13	A₂	423	409	0.00
14	A₂	91	88	0.00
15	B₁	2217	2140	231.50
16	B₁	2190	2114	28.03
17	B₁	955	922	73.68
18	B₁	598	577	9.31
19	B₁	320	308	18.84
20	B₁	106	103	0.04
21	B₂	2212	2135	59.35
22	B₂	2202	2126	111.82
23	B₂	951	918	34.75
24	B₂	885	854	322.45
25	B₂	727	702	303.94
26	B₂	457	441	10.20
27	B₂	437	421	11.69

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.890
Si2	0.000	1.954	-0.419
Si3	0.000	-1.954	-0.419
H4	1.199	0.000	1.768
H5	-1.199	0.000	1.768
H6	0.000	3.164	0.438
H7	0.000	-3.164	0.438
H8	1.203	1.990	-1.285
H9	-1.203	1.990	-1.285
H10	-1.203	-1.990	-1.285
H11	1.203	-1.990	-1.285

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3522	2.3522	1.4859	1.4859	3.1958	3.1958	3.1845	3.1845	3.1845	3.1845
Si2	2.3522		3.9080	3.1687	3.1687	1.4827	5.1889	1.4827	1.4827	4.2133	4.2133
Si3	2.3522	3.9080		3.1687	3.1687	5.1889	1.4827	4.2133	4.2133	1.4827	1.4827
H4	1.4859	3.1687	3.1687		2.3976	3.6352	3.6352	3.6450	4.3650	4.3650	3.6450
H5	1.4859	3.1687	3.1687	2.3976		3.6352	3.6352	4.3650	3.6450	3.6450	4.3650
H6	3.1958	1.4827	5.1889	3.6352	3.6352		6.3272	2.4073	2.4073	5.5657	5.5657
H7	3.1958	5.1889	1.4827	3.6352	3.6352	6.3272		5.5657	5.5657	2.4073	2.4073
H8	3.1845	1.4827	4.2133	3.6450	4.3650	2.4073	5.5657		2.4054	4.6504	3.9800
H9	3.1845	1.4827	4.2133	4.3650	3.6450	2.4073	5.5657	2.4054		3.9800	4.6504
H10	3.1845	4.2133	1.4827	4.3650	3.6450	5.5657	2.4073	4.6504	3.9800		2.4054
H11	3.1845	4.2133	1.4827	3.6450	4.3650	5.5657	2.4073	3.9800	4.6504	2.4054

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	110.839	S1	S2	H8	110.210
S1	S2	H9	110.210	S1	S3	H7	110.839
S1	S3	H10	110.210	S1	S3	H11	110.210
S2	S1	S3	112.340	S2	S1	H4	109.204
S2	S1	H5	109.204	S3	S1	H4	109.204
S3	S1	H5	109.204	H4	S1	H5	107.567
H6	S2	H8	108.548	H6	S2	H9	108.548
H7	S3	H10	108.548	H7	S3	H11	108.548
H8	S2	H9	108.422	H10	S3	H11	108.422

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: B3LYP/cc-pV(T+d)Z

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	0.108
2	Si	0.159
3	Si	0.159
4	H	-0.058
5	H	-0.058
6	H	-0.051
7	H	-0.051
8	H	-0.052
9	H	-0.052
10	H	-0.052
11	H	-0.052

<r²>	209.952
(<r²>)^1/2	14.490

All results from a given calculation for Si3H8 (trisilane)

using model chemistry: B3LYP/cc-pV(T+d)Z

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)