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	hartrees
Energy at 0K	-867.317895
Energy at 298.15K	-867.325751
HF Energy	-867.073219
Nuclear repulsion energy	194.027223

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2337	2223	135.49
2	A₁	2325	2212	9.86
3	A₁	2306	2194	69.50
4	A₁	992	943	73.35
5	A₁	967	920	9.10
6	A₁	933	888	208.13
7	A₁	600	570	7.59
8	A₁	416	396	0.62
9	A₁	103	98	1.42
10	A₂	2334	2221	0.00
11	A₂	983	935	0.00
12	A₂	751	714	0.00
13	A₂	445	423	0.00
14	A₂	86	82	0.00
15	B₁	2338	2224	220.01
16	B₁	2318	2205	24.79
17	B₁	987	939	87.77
18	B₁	629	598	11.03
19	B₁	321	306	19.85
20	B₁	105	100	0.02
21	B₂	2336	2222	61.28
22	B₂	2321	2208	110.02
23	B₂	984	936	39.49
24	B₂	924	879	339.51
25	B₂	759	722	277.89
26	B₂	495	471	5.55
27	B₂	461	439	20.94

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.904
Si2	0.000	1.909	-0.423
Si3	0.000	-1.909	-0.423
H4	1.204	0.000	1.777
H5	-1.204	0.000	1.777
H6	0.000	3.142	0.404
H7	0.000	-3.142	0.404
H8	1.204	1.915	-1.291
H9	-1.204	1.915	-1.291
H10	-1.204	-1.915	-1.291
H11	1.204	-1.915	-1.291

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3253	2.3253	1.4873	1.4873	3.1812	3.1812	3.1524	3.1524	3.1524	3.1524
Si2	2.3253		3.8187	3.1523	3.1523	1.4843	5.1184	1.4844	1.4844	4.1025	4.1025
Si3	2.3253	3.8187		3.1523	3.1523	5.1184	1.4843	4.1025	4.1025	1.4844	1.4844
H4	1.4873	3.1523	3.1523		2.4080	3.6339	3.6339	3.6172	4.3454	4.3454	3.6172
H5	1.4873	3.1523	3.1523	2.4080		3.6339	3.6339	4.3454	3.6172	3.6172	4.3454
H6	3.1812	1.4843	5.1184	3.6339	3.6339		6.2834	2.4143	2.4143	5.4678	5.4678
H7	3.1812	5.1184	1.4843	3.6339	3.6339	6.2834		5.4678	5.4678	2.4143	2.4143
H8	3.1524	1.4844	4.1025	3.6172	4.3454	2.4143	5.4678		2.4080	4.5245	3.8304
H9	3.1524	1.4844	4.1025	4.3454	3.6172	2.4143	5.4678	2.4080		3.8304	4.5245
H10	3.1524	4.1025	1.4844	4.3454	3.6172	5.4678	2.4143	4.5245	3.8304		2.4080
H11	3.1524	4.1025	1.4844	3.6172	4.3454	5.4678	2.4143	3.8304	4.5245	2.4080

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	111.322	S1	S2	H8	109.699
S1	S2	H9	109.699	S1	S3	H7	111.322
S1	S3	H10	109.699	S1	S3	H11	109.699
S2	S1	S3	110.394	S2	S1	H4	109.578
S2	S1	H5	109.578	S3	S1	H4	109.578
S3	S1	H5	109.578	H4	S1	H5	108.098
H6	S2	H8	108.828	H6	S2	H9	108.828
H7	S3	H10	108.828	H7	S3	H11	108.828
H8	S2	H9	108.408	H10	S3	H11	108.408

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: MP2/3-21G*

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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All results from a given calculation for Si3H8 (trisilane)

using model chemistry: MP2/3-21G*

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)