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	hartrees
Energy at 0K	-871.887326
Energy at 298.15K	-871.895074
HF Energy	-871.414977
Nuclear repulsion energy	193.187487

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2304	2304	116.88
2	A₁	2293	2293	12.22
3	A₁	2274	2274	61.76
4	A₁	987	987	69.27
5	A₁	961	961	1.13
6	A₁	923	923	188.74
7	A₁	583	583	5.36
8	A₁	401	401	0.47
9	A₁	97	97	1.29
10	A₂	2301	2301	0.00
11	A₂	979	979	0.00
12	A₂	728	728	0.00
13	A₂	427	427	0.00
14	A₂	84	84	0.00
15	B₁	2305	2305	194.08
16	B₁	2284	2284	22.57
17	B₁	983	983	74.27
18	B₁	614	614	8.69
19	B₁	318	318	17.46
20	B₁	102	102	0.03
21	B₂	2302	2302	56.85
22	B₂	2289	2289	95.96
23	B₂	979	979	36.23
24	B₂	909	909	318.30
25	B₂	741	741	270.44
26	B₂	479	479	5.46
27	B₂	446	446	18.11

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.907
Si2	0.000	1.927	-0.425
Si3	0.000	-1.927	-0.425
H4	1.198	0.000	1.775
H5	-1.198	0.000	1.775
H6	0.000	3.147	0.406
H7	0.000	-3.147	0.406
H8	1.199	1.940	-1.288
H9	-1.199	1.940	-1.288
H10	-1.199	-1.940	-1.288
H11	1.199	-1.940	-1.288

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3423	2.3423	1.4795	1.4795	3.1870	3.1870	3.1649	3.1649	3.1649	3.1649
Si2	2.3423		3.8538	3.1606	3.1606	1.4768	5.1420	1.4769	1.4769	4.1396	4.1396
Si3	2.3423	3.8538		3.1606	3.1606	5.1420	1.4768	4.1396	4.1396	1.4769	1.4769
H4	1.4795	3.1606	3.1606		2.3951	3.6352	3.6352	3.6258	4.3462	4.3462	3.6258
H5	1.4795	3.1606	3.1606	2.3951		3.6352	3.6352	4.3462	3.6258	3.6258	4.3462
H6	3.1870	1.4768	5.1420	3.6352	3.6352		6.2949	2.4008	2.4008	5.4947	5.4947
H7	3.1870	5.1420	1.4768	3.6352	3.6352	6.2949		5.4947	5.4947	2.4008	2.4008
H8	3.1649	1.4769	4.1396	3.6258	4.3462	2.4008	5.4947		2.3978	4.5616	3.8805
H9	3.1649	1.4769	4.1396	4.3462	3.6258	2.4008	5.4947	2.3978		3.8805	4.5616
H10	3.1649	4.1396	1.4769	4.3462	3.6258	5.4947	2.4008	4.5616	3.8805		2.3978
H11	3.1649	4.1396	1.4769	3.6258	4.3462	5.4947	2.4008	3.8805	4.5616	2.3978

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	111.089	S1	S2	H8	109.844
S1	S2	H9	109.844	S1	S3	H7	111.089
S1	S3	H10	109.844	S1	S3	H11	109.844
S2	S1	S3	110.700	S2	S1	H4	109.503
S2	S1	H5	109.503	S3	S1	H4	109.503
S3	S1	H5	109.503	H4	S1	H5	108.084
H6	S2	H8	108.738	H6	S2	H9	108.738
H7	S3	H10	108.738	H7	S3	H11	108.738
H8	S2	H9	108.534	H10	S3	H11	108.534

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: MP3=FULL/6-31G(2df,p)

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: MP3=FULL/6-31G(2df,p)

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)