Phosphanylalanes and Phosphanylgallanes Stabilized only by a Lewis Base

Weinhart, Michael A. K. and Lisovenko, Anna S. and Timoshkin, Alexey Y. and Scheer, Manfred (2020) Phosphanylalanes and Phosphanylgallanes Stabilized only by a Lewis Base. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 59 (14). pp. 5541-5545. ISSN 1433-7851, 1521-3773

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Abstract

The synthesis and characterization of the first parent phosphanylalane and phosphanylgallane stabilized only by a Lewis base (LB) are reported. The corresponding substituted compounds, such as IDipp.GaH2PCy2 (1) (IDipp=1,3-bis(2,6-diisopropylphenyl)-imidazolin-2-ylidene) were obtained by the reaction of LiPCy2 with IDipp.GaH2Cl. However, the LB-stabilized parent compounds IDipp.GaH2PH2 (3) and IDipp.AlH2PH2 (4) were prepared via a salt metathesis of LiPH2.DME with IDipp.E ' H2Cl (E '=Ga, Al) or by H-2-elimination reactions of IDipp.E ' H-3 (E '=Ga, Al) and PH3, respectively. The compounds could be isolated as crystalline solids and completely characterized. Supporting DFT computations gave insight into the reaction pathways as well as into the stability of these compounds with respect to their decomposition behavior.

Item Type: Article
Uncontrolled Keywords: CONJUGATE BASE; GALLIUM; ACTIVATION; GROUP-13; ALUMINUM; PHOSPHINOBORANES; REACTIVITY; ADDUCTS; ROUTE; PAIRS; alanes; gallanes; main-group elements; Lewis bases; phosphorus
Subjects: 500 Science > 540 Chemistry & allied sciences
Divisions: 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: 01 Apr 2021 08:42
Last Modified: 01 Apr 2021 08:42
URI: https://pred.uni-regensburg.de/id/eprint/45321

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