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	hartrees
Energy at 0K	-868.638748
Energy at 298.15K
HF Energy	-868.638748
Nuclear repulsion energy	190.766628

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2151	2114	154.18
2	A₁	2129	2093	3.27
3	A₁	2115	2079	83.30
4	A₁	910	894	54.89
5	A₁	876	861	11.29
6	A₁	826	812	163.08
7	A₁	535	526	5.75
8	A₁	359	353	0.20
9	A₁	99	98	1.10
10	A₂	2148	2111	0.00
11	A₂	898	883	0.00
12	A₂	676	664	0.00
13	A₂	403	396	0.00
14	A₂	47i	46i	0.00
15	B₁	2155	2119	273.92
16	B₁	2135	2099	6.43
17	B₁	903	888	62.71
18	B₁	555	545	8.60
19	B₁	280	275	15.05
20	B₁	34	34	0.02
21	B₂	2149	2112	73.41
22	B₂	2122	2086	129.68
23	B₂	906	891	36.65
24	B₂	809	795	270.64
25	B₂	656	645	213.99
26	B₂	432	424	13.98
27	B₂	406	399	9.66

Atom	x (Å)	y (Å)	z (Å)
Si1	0.000	0.000	0.955
Si2	0.000	1.922	-0.444
Si3	0.000	-1.922	-0.444
H4	1.225	0.000	1.835
H5	-1.225	0.000	1.835
H6	0.000	3.203	0.350
H7	0.000	-3.203	0.350
H8	1.221	1.891	-1.326
H9	-1.221	1.891	-1.326
H10	-1.221	-1.891	-1.326
H11	1.221	-1.891	-1.326

	Si1	Si2	Si3	H4	H5	H6	H7	H8	H9	H10	H11
Si1		2.3767	2.3767	1.5086	1.5086	3.2594	3.2594	3.2048	3.2048	3.2048	3.2048
Si2	2.3767		3.8434	3.2230	3.2230	1.5071	5.1856	1.5072	1.5072	4.0996	4.0996
Si3	2.3767	3.8434		3.2230	3.2230	5.1856	1.5071	4.0996	4.0996	1.5072	1.5072
H4	1.5086	3.2230	3.2230		2.4499	3.7370	3.7370	3.6839	4.4222	4.4222	3.6839
H5	1.5086	3.2230	3.2230	2.4499		3.7370	3.7370	4.4222	3.6839	3.6839	4.4222
H6	3.2594	1.5071	5.1856	3.7370	3.7370		6.4056	2.4541	2.4541	5.4998	5.4998
H7	3.2594	5.1856	1.5071	3.7370	3.7370	6.4056		5.4998	5.4998	2.4541	2.4541
H8	3.2048	1.5072	4.0996	3.6839	4.4222	2.4541	5.4998		2.4429	4.5022	3.7818
H9	3.2048	1.5072	4.0996	4.4222	3.6839	2.4541	5.4998	2.4429		3.7818	4.5022
H10	3.2048	4.0996	1.5072	4.4222	3.6839	5.4998	2.4541	4.5022	3.7818		2.4429
H11	3.2048	4.0996	1.5072	3.6839	4.4222	5.4998	2.4541	3.7818	4.5022	2.4429

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	S2	H6	112.175	S1	S2	H8	109.150
S1	S2	H9	109.150	S1	S3	H7	112.175
S1	S3	H10	109.150	S1	S3	H11	109.150
S2	S1	S3	107.908	S2	S1	H4	110.088
S2	S1	H5	110.088	S3	S1	H4	110.088
S3	S1	H5	110.088	H4	S1	H5	108.580
H6	S2	H8	109.009	H6	S2	H9	109.009
H7	S3	H10	109.009	H7	S3	H11	109.009
H8	S2	H9	108.268	H10	S3	H11	108.268

All results from a given calculation for Si₃H₈ (trisilane)

using model chemistry: B97D3/3-21G

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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Number	Element	Mulliken
1	Si	0.037
2	Si	0.269
3	Si	0.269
4	H	-0.060
5	H	-0.060
6	H	-0.077
7	H	-0.077
8	H	-0.075
9	H	-0.075
10	H	-0.075
11	H	-0.075

<r²>	209.256
(<r²>)^1/2	14.466

All results from a given calculation for Si3H8 (trisilane)

using model chemistry: B97D3/3-21G

States and conformations

All results from a given calculation for Si₃H₈ (trisilane)