Reichl, Stephan and Riesinger, Christoph and Yadav, Ravi and Timoshkin, Alexey Y. and Roesky, Peter W. and Scheer, Manfred (2024) Reactivity of [Cp*Fe(η5-As5)] towards Carbenes, Silylenes and Germylenes. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 63 (4). e202316117. ISSN 1433-7851, 1521-3773
Full text not available from this repository. (Request a copy)Abstract
The reaction behavior of [Cp*Fe(eta(5)-As-5)] (I) (Cp*=C5Me5) towards carbenes and their heavier analogs was investigated. The reaction of I with NHCs (NHCs=N-heterocyclic carbenes) results in the first substitution products of polyarsenic ligand complexes by NHCs [Cp*Fe(eta(4)-As5NHC)] (1 a: NHC=IMe=1,3,4,5-tetramethylimidazolin-2-ylidene, 1 b: NHC=IMes=1,3-bis(2,4,6-trimethylphenyl)-imidazolin-2-ylidene). In contrast, the reaction of I with (Et)CAAC ((Et)CAAC=2,6-diisopropylphenyl)-4,4-diethyl-2,2-dimethyl-pyrrolidin-5-ylidene) leads to a fragmentation and the formation of an unprecedented As-6-sawhorse-type compound [As-2(As(Et)CAAC)(4)] (2). The reaction of (LE)(2) (L=PhC((NBu)-Bu-t)(2); E=Si, Ge) with I resulted in a rearrangement and an insertion of LE fragments, forming unique silicon- (4: [Cp*Fe(eta(4)-As4SiL)], 5 a: [Cp*Fe(eta(4)-As6SiL)) and germanium-containing (5 b: [Cp*Fe(eta(4)-As6GeL)) cyclic polyarsenic ligand complexes.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | BOND COVALENT RADII; FACILE ACCESS; SINGLE-BOND; P-4; ELEMENTS; PHOSPHORUS; ACTIVATION; CAGE; AS-4; Arsenic; Functionalization; Germylene; Nucleophiles; Silylene |
| 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: | 24 Apr 2024 06:03 |
| Last Modified: | 11 Mar 2025 06:49 |
| URI: | https://pred.uni-regensburg.de/id/eprint/59823 |
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