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	hartrees
Energy at 0K	-871.937401
Energy at 298.15K	-871.945138
HF Energy	-871.489772
Nuclear repulsion energy	192.670516

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2264	2264	122.41
2	A₁	2256	2256	29.67
3	A₁	2236	2236	69.61
4	A₁	977	977	77.40
5	A₁	953	953	2.43
6	A₁	914	914	204.35
7	A₁	577	577	6.41
8	A₁	395	395	0.56
9	A₁	95	95	1.45
10	A₂	2259	2259	0.00
11	A₂	969	969	0.00
12	A₂	719	719	0.00
13	A₂	425	425	0.00
14	A₂	87	87	0.00
15	B₁	2264	2264	238.61
16	B₁	2244	2244	19.88
17	B₁	973	973	81.88
18	B₁	607	607	9.65
19	B₁	321	321	21.37
20	B₁	103	103	0.07
21	B₂	2263	2263	94.22
22	B₂	2251	2251	82.20
23	B₂	969	969	39.54
24	B₂	901	901	336.50
25	B₂	732	732	290.43
26	B₂	472	472	8.51
27	B₂	442	442	19.82

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.911
Si2	0.000	1.932	-0.427
Si3	0.000	-1.932	-0.427
H4	1.200	0.000	1.782
H5	-1.200	0.000	1.782
H6	0.000	3.157	0.402
H7	0.000	-3.157	0.402
H8	1.201	1.942	-1.291
H9	-1.201	1.942	-1.291
H10	-1.201	-1.942	-1.291
H11	1.201	-1.942	-1.291

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3496	2.3496	1.4826	1.4826	3.1979	3.1979	3.1726	3.1726	3.1726	3.1726
Si2	2.3496		3.8632	3.1700	3.1700	1.4794	5.1558	1.4800	1.4800	4.1471	4.1471
Si3	2.3496	3.8632		3.1700	3.1700	5.1558	1.4794	4.1471	4.1471	1.4800	1.4800
H4	1.4826	3.1700	3.1700		2.3994	3.6485	3.6485	3.6355	4.3568	4.3568	3.6355
H5	1.4826	3.1700	3.1700	2.3994		3.6485	3.6485	4.3568	3.6355	3.6355	4.3568
H6	3.1979	1.4794	5.1558	3.6485	3.6485		6.3143	2.4053	2.4053	5.5059	5.5059
H7	3.1979	5.1558	1.4794	3.6485	3.6485	6.3143		5.5059	5.5059	2.4053	2.4053
H8	3.1726	1.4800	4.1471	3.6355	4.3568	2.4053	5.5059		2.4026	4.5677	3.8848
H9	3.1726	1.4800	4.1471	4.3568	3.6355	2.4053	5.5059	2.4026		3.8848	4.5677
H10	3.1726	4.1471	1.4800	4.3568	3.6355	5.5059	2.4053	4.5677	3.8848		2.4026
H11	3.1726	4.1471	1.4800	3.6355	4.3568	5.5059	2.4053	3.8848	4.5677	2.4026

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	111.231	S1	S2	H8	109.787
S1	S2	H9	109.787	S1	S3	H7	111.231
S1	S3	H10	109.787	S1	S3	H11	109.787
S2	S1	S3	110.593	S2	S1	H4	109.542
S2	S1	H5	109.542	S3	S1	H4	109.542
S3	S1	H5	109.542	H4	S1	H5	108.037
H6	S2	H8	108.730	H6	S2	H9	108.730
H7	S3	H10	108.730	H7	S3	H11	108.730
H8	S2	H9	108.520	H10	S3	H11	108.520

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: MP3/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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All results from a given calculation for Si3H8 (trisilane)

using model chemistry: MP3/cc-pV(T+d)Z

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)