Brake, Helena and Peresypkina, Eugenia and Virovets, Alexander V. and Piesch, Martin and Kremer, Werner and Zimmermann, Lisa and Klimas, Christian and Scheer, Manfred (2020) Iodination ofcyclo-E-5-Complexes (E=P, As). ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 59 (37). pp. 16241-16246. ISSN 1433-7851, 1521-3773
Full text not available from this repository. (Request a copy)Abstract
In a high-yield one-pot synthesis, the reactions of [Cp*M(eta(5)-P-5)] (M=Fe (1), Ru (2)) with I(2)resulted in the selective formation of [Cp*MP6I6](+)salts (3,4). The products comprise unprecedented all-cistripodal triphosphino-cyclotriphosphine ligands. The iodination of [Cp*Fe(eta(5)-As-5)] (6) gave, in addition to [Fe(CH3CN)(6)](2+)salts of the rare [As6I8](2-)(in7) and [As4I14](2-)(in8) anions, the first di-cationic Fe-As triple decker complex [(Cp*Fe)(2)(mu,eta(5:5)-As-5)][As6I8] (9). In contrast, the iodination of [Cp*Ru(eta(5)-As-5)] (10) did not result in the full cleavage of the M-As bonds. Instead, a number of dinuclear complexes were obtained: [(Cp*Ru)(2)(mu,eta(5:5)-As-5)][As6I8](0.5)(11) represents the first Ru-As(5)triple decker complex, thus completing the series of monocationic complexes [(Cp(R)M)(2)(mu,eta(5:5)-E-5)](+)(M=Fe, Ru; E=P, As). [(Cp*Ru)(2)As8I6] (12) crystallizes as a racemic mixture of both enantiomers, while [(Cp*Ru)(2)As4I4] (13) crystallizes as a symmetric and an asymmetric isomer and features a unique tetramer of {AsI} arsinidene units as a middle deck.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | TRIPLE-DECKER COMPLEXES; STRUCTURAL CHEMISTRY; COVALENT RADII; PHOSPHORUS; IRON; POLYPHOSPHIDES; TRANSFORMATION; PHOSPHIDES; CRYSTAL; REAGENT; arsinidenes; iodination; oxidation; polyphosphorus ligands; polypnictogen complexes |
| Subjects: | 500 Science > 540 Chemistry & allied sciences 500 Science > 570 Life sciences |
| Divisions: | Biology, Preclinical Medicine > Institut für Biophysik und physikalische Biochemie Chemistry and Pharmacy > Institut für Anorganische Chemie Chemistry and Pharmacy > Institut für Anorganische Chemie > Chair Prof. Dr. Manfred Scheer |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 12 Mar 2021 07:42 |
| Last Modified: | 12 Mar 2021 07:42 |
| URI: | https://pred.uni-regensburg.de/id/eprint/43845 |
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