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	hartrees
Energy at 0K	-873.327234
Energy at 298.15K	-873.334820
HF Energy	-873.327234
Nuclear repulsion energy	192.356442

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2234	2137	141.26
2	A₁	2224	2128	8.80
3	A₁	2205	2110	62.51
4	A₁	951	910	70.77
5	A₁	926	886	0.87
6	A₁	887	849	187.92
7	A₁	569	544	6.91
8	A₁	386	370	0.69
9	A₁	97	92	1.48
10	A₂	2232	2135	0.00
11	A₂	943	902	0.00
12	A₂	711	680	0.00
13	A₂	422	404	0.00
14	A₂	69	66	0.00
15	B₁	2237	2140	229.36
16	B₁	2214	2119	20.76
17	B₁	948	907	73.38
18	B₁	597	571	11.06
19	B₁	316	302	21.28
20	B₁	90	86	0.06
21	B₂	2233	2136	62.81
22	B₂	2220	2124	101.25
23	B₂	945	904	34.98
24	B₂	875	837	308.98
25	B₂	719	687	290.18
26	B₂	465	445	7.29
27	B₂	438	419	17.99

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.897
Si2	0.000	1.940	-0.421
Si3	0.000	-1.940	-0.421
H4	1.204	0.000	1.776
H5	-1.204	0.000	1.776
H6	0.000	3.161	0.430
H7	0.000	-3.161	0.430
H8	1.208	1.968	-1.291
H9	-1.208	1.968	-1.291
H10	-1.208	-1.968	-1.291
H11	1.208	-1.968	-1.291

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3458	2.3458	1.4911	1.4911	3.1953	3.1953	3.1806	3.1806	3.1806	3.1806
Si2	2.3458		3.8810	3.1692	3.1692	1.4883	5.1722	1.4884	1.4884	4.1818	4.1818
Si3	2.3458	3.8810		3.1692	3.1692	5.1722	1.4883	4.1818	4.1818	1.4884	1.4884
H4	1.4911	3.1692	3.1692		2.4086	3.6406	3.6406	3.6439	4.3698	4.3698	3.6439
H5	1.4911	3.1692	3.1692	2.4086		3.6406	3.6406	4.3698	3.6439	3.6439	4.3698
H6	3.1953	1.4883	5.1722	3.6406	3.6406		6.3222	2.4178	2.4178	5.5430	5.5430
H7	3.1953	5.1722	1.4883	3.6406	3.6406	6.3222		5.5430	5.5430	2.4178	2.4178
H8	3.1806	1.4884	4.1818	3.6439	4.3698	2.4178	5.5430		2.4150	4.6172	3.9352
H9	3.1806	1.4884	4.1818	4.3698	3.6439	2.4178	5.5430	2.4150		3.9352	4.6172
H10	3.1806	4.1818	1.4884	4.3698	3.6439	5.5430	2.4178	4.6172	3.9352		2.4150
H11	3.1806	4.1818	1.4884	3.6439	4.3698	5.5430	2.4178	3.9352	4.6172	2.4150

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	110.911	S1	S2	H8	110.085
S1	S2	H9	110.085	S1	S3	H7	110.911
S1	S3	H10	110.085	S1	S3	H11	110.085
S2	S1	S3	111.628	S2	S1	H4	109.348
S2	S1	H5	109.348	S3	S1	H4	109.348
S3	S1	H5	109.348	H4	S1	H5	107.738
H6	S2	H8	108.629	H6	S2	H9	108.629
H7	S3	H10	108.629	H7	S3	H11	108.629
H8	S2	H9	108.441	H10	S3	H11	108.441

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: mPW1PW91/6-311G**

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	0.095
2	Si	0.291
3	Si	0.291
4	H	-0.068
5	H	-0.068
6	H	-0.086
7	H	-0.086
8	H	-0.092
9	H	-0.092
10	H	-0.092
11	H	-0.092

<r²>	208.157
(<r²>)^1/2	14.428

All results from a given calculation for Si3H8 (trisilane)

using model chemistry: mPW1PW91/6-311G**

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)