Ring expansion vs. addition - reactivity of a cyclo-P₄ complex towards pnictogenium cations

Riesinger, Christoph and Erhard, Alexander and Scheer, Manfred (2023) Ring expansion vs. addition - reactivity of a cyclo-P₄ complex towards pnictogenium cations. CHEMICAL COMMUNICATIONS, 59 (67). pp. 10117-10120. ISSN 1359-7345, 1364-548X

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Abstract

A systematic study on the reactivity of the cyclo-P-4 complexes [(CpTa)-Ta-R(CO)2(eta(4)-P-4)] towards pnictogenium cations results in the formation of functionalised interpnictogen cations. Phosphenium ions insert into one of the P-P bonds to give ring-expanded cyclo-P5R2 products. In contrast, an arsenium-functionalised P4AsCy2 ligand displays an interesting borderline case between ring expansion and coordination, while stibenium cations afford addition products. Tuning of the steric and electronic properties of the stibenium ion shows a drastic influence on the reaction outcome.

Item Type: Article
Uncontrolled Keywords: STABILIZED ARSENIUM SALTS; P-P BOND; P5X2+ X; BR; LIGAND; ION
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: 05 Mar 2024 11:44
Last Modified: 05 Mar 2024 11:44
URI: https://pred.uni-regensburg.de/id/eprint/59296

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