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	hartrees
Energy at 0K	-871.841821
Energy at 298.15K	-871.849420
HF Energy	-871.439548
Nuclear repulsion energy	191.060800

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2222	2153	129.84
2	A₁	2213	2143	28.54
3	A₁	2193	2125	73.25
4	A₁	951	922	73.37
5	A₁	931	902	2.39
6	A₁	891	863	197.86
7	A₁	567	550	6.69
8	A₁	388	376	0.59
9	A₁	94	91	1.49
10	A₂	2218	2148	0.00
11	A₂	945	916	0.00
12	A₂	709	686	0.00
13	A₂	422	408	0.00
14	A₂	71	69	0.00
15	B₁	2223	2153	251.94
16	B₁	2201	2132	20.02
17	B₁	950	920	77.50
18	B₁	598	579	9.68
19	B₁	313	303	22.31
20	B₁	92	90	0.06
21	B₂	2220	2151	96.82
22	B₂	2208	2139	85.94
23	B₂	944	915	39.09
24	B₂	879	851	313.55
25	B₂	718	696	301.24
26	B₂	464	449	8.87
27	B₂	435	422	19.57

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.922
Si2	0.000	1.944	-0.432
Si3	0.000	-1.944	-0.432
H4	1.213	0.000	1.800
H5	-1.213	0.000	1.800
H6	0.000	3.184	0.403
H7	0.000	-3.184	0.403
H8	1.214	1.950	-1.305
H9	-1.214	1.950	-1.305
H10	-1.214	-1.950	-1.305
H11	1.214	-1.950	-1.305

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3688	2.3688	1.4981	1.4981	3.2263	3.2263	3.1993	3.1993	3.1993	3.1993
Si2	2.3688		3.8879	3.1991	3.1991	1.4950	5.1957	1.4956	1.4956	4.1711	4.1711
Si3	2.3688	3.8879		3.1991	3.1991	5.1957	1.4950	4.1711	4.1711	1.4956	1.4956
H4	1.4981	3.1991	3.1991		2.4268	3.6832	3.6832	3.6670	4.3977	4.3977	3.6670
H5	1.4981	3.1991	3.1991	2.4268		3.6832	3.6832	4.3977	3.6670	3.6670	4.3977
H6	3.2263	1.4950	5.1957	3.6832	3.6832		6.3686	2.4321	2.4321	5.5453	5.5453
H7	3.2263	5.1957	1.4950	3.6832	3.6832	6.3686		5.5453	5.5453	2.4321	2.4321
H8	3.1993	1.4956	4.1711	3.6670	4.3977	2.4321	5.5453		2.4283	4.5938	3.8996
H9	3.1993	1.4956	4.1711	4.3977	3.6670	2.4321	5.5453	2.4283		3.8996	4.5938
H10	3.1993	4.1711	1.4956	4.3977	3.6670	5.5453	2.4321	4.5938	3.8996		2.4283
H11	3.1993	4.1711	1.4956	3.6670	4.3977	5.5453	2.4321	3.8996	4.5938	2.4283

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	111.216	S1	S2	H8	109.687
S1	S2	H9	109.687	S1	S3	H7	111.216
S1	S3	H10	109.687	S1	S3	H11	109.687
S2	S1	S3	110.299	S2	S1	H4	109.582
S2	S1	H5	109.582	S3	S1	H4	109.582
S3	S1	H5	109.582	H4	S1	H5	108.181
H6	S2	H8	108.829	H6	S2	H9	108.829
H7	S3	H10	108.829	H7	S3	H11	108.829
H8	S2	H9	108.542	H10	S3	H11	108.542

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: QCISD/aug-cc-pVDZ

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: QCISD/aug-cc-pVDZ

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)