Heindl, Claudia and Peresypkina, Eugenia V. and Virovets, Alexander V. and Balazs, Gabor and Scheer, Manfred (2016) Progress in Polyarsolyl Chemistry. CHEMISTRY-A EUROPEAN JOURNAL, 22 (6). pp. 1944-1948. ISSN 0947-6539, 1521-3765
Full text not available from this repository. (Request a copy)Abstract
The synthesis of heteroatom analogues of the cyclopentadienyl anion Cp- is a fascinating and challenging field of research. The replacement of methine moieties by phosphorus is well investigated for the synthesis of mono-, tri- and pentaphospholyl ligands. On the other hand, arsenic derivatives are rare and 1,2,4-triarsolyl and tetraarsolyl salts are unknown. Herein, we report on the synthesis of Cs[E3C2(trip)(2)] (1a: E=P; 1b: E=As; trip=2,4,6-triisopropylphenyl) and Cs[E4C(trip)] (2a: E=P; 2b: E=As). Compound 1b represents the first 1,2,4-triarsolyl and 2b the first tetraarsolyl anion. All salts are obtained in one-pot syntheses using E(SiMe3)(3), 2,4,6-triisopropylbenzoyl chloride and CsF. The products 1a2C(4)H(8)O(2), 2aEt(2)O and 2b3C(4)H(8)O(2) were characterized by X-ray structural analysis, which revealed planar heterocycles. Nucleus-independent chemical shifts (NICS) confirmed the aromaticity of these anions. Notably, compound 2aEt(2)O is only the second tetraphospholyl ligand which is structurally characterized.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | CRYSTAL-STRUCTURE; 1,2,3-TRIPNICTOLIDE ANIONS; SANDWICH COMPLEX; IRON COMPLEXES; PENTAPHOSPHACYCLOPENTADIENIDE; PHOSPHORUS; REACTIVITY; LIGANDS; FERROCENE; ANALOGS; cyclopentadienyl ligands; heterocycles; inorganic ring systems; polyarsolyl; polyphospholyl |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Anorganische Chemie > Chair Prof. Dr. Manfred Scheer |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 12 Mar 2019 12:18 |
| Last Modified: | 12 Mar 2019 12:18 |
| URI: | https://pred.uni-regensburg.de/id/eprint/2415 |
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