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	hartrees
Energy at 0K	-871.716869
Energy at 298.15K	-871.724556
HF Energy	-871.385595
Nuclear repulsion energy	192.522367

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2261	2147	169.67
2	A₁	2247	2134	20.44
3	A₁	2226	2114	95.53
4	A₁	961	913	69.56
5	A₁	939	892	15.52
6	A₁	908	862	185.76
7	A₁	583	553	8.22
8	A₁	404	384	0.87
9	A₁	102	97	1.61
10	A₂	2256	2143	0.00
11	A₂	950	903	0.00
12	A₂	726	690	0.00
13	A₂	430	409	0.00
14	A₂	78	74	0.00
15	B₁	2260	2147	296.71
16	B₁	2237	2125	39.38
17	B₁	954	906	81.84
18	B₁	615	584	10.06
19	B₁	321	305	22.76
20	B₁	99	94	0.05
21	B₂	2259	2145	91.84
22	B₂	2242	2129	117.23
23	B₂	952	904	32.70
24	B₂	900	855	306.79
25	B₂	749	711	319.67
26	B₂	487	463	3.65
27	B₂	451	428	23.88

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.886
Si2	0.000	1.941	-0.417
Si3	0.000	-1.941	-0.417
H4	1.208	0.000	1.771
H5	-1.208	0.000	1.771
H6	0.000	3.162	0.443
H7	0.000	-3.162	0.443
H8	1.211	1.974	-1.291
H9	-1.211	1.974	-1.291
H10	-1.211	-1.974	-1.291
H11	1.211	-1.974	-1.291

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3376	2.3376	1.4971	1.4971	3.1928	3.1928	3.1787	3.1787	3.1787	3.1787
Si2	2.3376		3.8815	3.1640	3.1640	1.4932	5.1745	1.4938	1.4938	4.1900	4.1900
Si3	2.3376	3.8815		3.1640	3.1640	5.1745	1.4932	4.1900	4.1900	1.4938	1.4938
H4	1.4971	3.1640	3.1640		2.4154	3.6359	3.6359	3.6434	4.3729	4.3729	3.6434
H5	1.4971	3.1640	3.1640	2.4154		3.6359	3.6359	4.3729	3.6434	3.6434	4.3729
H6	3.1928	1.4932	5.1745	3.6359	3.6359		6.3237	2.4255	2.4255	5.5543	5.5543
H7	3.1928	5.1745	1.4932	3.6359	3.6359	6.3237		5.5543	5.5543	2.4255	2.4255
H8	3.1787	1.4938	4.1900	3.6434	4.3729	2.4255	5.5543		2.4211	4.6313	3.9481
H9	3.1787	1.4938	4.1900	4.3729	3.6434	2.4255	5.5543	2.4211		3.9481	4.6313
H10	3.1787	4.1900	1.4938	4.3729	3.6434	5.5543	2.4255	4.6313	3.9481		2.4211
H11	3.1787	4.1900	1.4938	3.6434	4.3729	5.5543	2.4255	3.9481	4.6313	2.4211

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	110.984	S1	S2	H8	110.174
S1	S2	H9	110.174	S1	S3	H7	110.984
S1	S3	H10	110.174	S1	S3	H11	110.174
S2	S1	S3	112.247	S2	S1	H4	109.231
S2	S1	H5	109.231	S3	S1	H4	109.231
S3	S1	H5	109.231	H4	S1	H5	107.556
H6	S2	H8	108.588	H6	S2	H9	108.588
H7	S3	H10	108.588	H7	S3	H11	108.588
H8	S2	H9	108.263	H10	S3	H11	108.263

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: CCSD=FULL/6-31G*

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: CCSD=FULL/6-31G*

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)