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	hartrees
Energy at 0K	-871.826547
Energy at 298.15K	-871.834275
HF Energy	-871.439078
Nuclear repulsion energy	191.152184

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2241	2241	126.88
2	A₁	2231	2231	18.33
3	A₁	2213	2213	72.81
4	A₁	964	964	78.91
5	A₁	941	941	2.28
6	A₁	904	904	194.99
7	A₁	572	572	7.08
8	A₁	389	389	0.58
9	A₁	98	98	1.52
10	A₂	2237	2237	0.00
11	A₂	955	955	0.00
12	A₂	715	715	0.00
13	A₂	426	426	0.00
14	A₂	85	85	0.00
15	B₁	2242	2242	227.30
16	B₁	2222	2222	21.65
17	B₁	959	959	79.99
18	B₁	602	602	9.82
19	B₁	319	319	21.65
20	B₁	99	99	0.03
21	B₂	2240	2240	75.91
22	B₂	2226	2226	95.27
23	B₂	956	956	37.16
24	B₂	891	891	329.74
25	B₂	729	729	288.76
26	B₂	469	469	7.82
27	B₂	442	442	19.20

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.909
Si2	0.000	1.952	-0.427
Si3	0.000	-1.952	-0.427
H4	1.208	0.000	1.789
H5	-1.208	0.000	1.789
H6	0.000	3.181	0.420
H7	0.000	-3.181	0.420
H8	1.211	1.972	-1.299
H9	-1.211	1.972	-1.299
H10	-1.211	-1.972	-1.299
H11	1.211	-1.972	-1.299

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3655	2.3655	1.4948	1.4948	3.2181	3.2181	3.1981	3.1981	3.1981	3.1981
Si2	2.3655		3.9044	3.1909	3.1909	1.4918	5.2022	1.4922	1.4922	4.1979	4.1979
Si3	2.3655	3.9044		3.1909	3.1909	5.2022	1.4918	4.1979	4.1979	1.4922	1.4922
H4	1.4948	3.1909	3.1909		2.4164	3.6678	3.6678	3.6638	4.3903	4.3903	3.6638
H5	1.4948	3.1909	3.1909	2.4164		3.6678	3.6678	4.3903	3.6638	3.6638	4.3903
H6	3.2181	1.4918	5.2022	3.6678	3.6678		6.3614	2.4250	2.4250	5.5646	5.5646
H7	3.2181	5.2022	1.4918	3.6678	3.6678	6.3614		5.5646	5.5646	2.4250	2.4250
H8	3.1981	1.4922	4.1979	3.6638	4.3903	2.4250	5.5646		2.4216	4.6273	3.9431
H9	3.1981	1.4922	4.1979	4.3903	3.6638	2.4250	5.5646	2.4216		3.9431	4.6273
H10	3.1981	4.1979	1.4922	4.3903	3.6638	5.5646	2.4250	4.6273	3.9431		2.4216
H11	3.1981	4.1979	1.4922	3.6638	4.3903	5.5646	2.4250	3.9431	4.6273	2.4216

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	111.053	S1	S2	H8	109.920
S1	S2	H9	109.920	S1	S3	H7	111.053
S1	S3	H10	109.920	S1	S3	H11	109.920
S2	S1	S3	111.235	S2	S1	H4	109.423
S2	S1	H5	109.423	S3	S1	H4	109.423
S3	S1	H5	109.423	H4	S1	H5	107.848
H6	S2	H8	108.714	H6	S2	H9	108.714
H7	S3	H10	108.714	H7	S3	H11	108.714
H8	S2	H9	108.464	H10	S3	H11	108.464

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: QCISD/cc-pCVDZ

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/cc-pCVDZ

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)