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Updated: Jun 10, 2025

Imine Metathesis by Silica-Supported Catalysts Using the Methodology of Surface Organometallic Chemistry
Published on: October 18, 2019
Phosphasilene mediated CO activation and deoxygenative homo coupling of CO molecules in reactions with metal
Zohreh Hendi1, Renuka Pradhan2, Katharina Rachuy1
1Institut für Anorganische Chemie, Georg-August-Universität Göttingen Göttingen 37077 Germany hroesky@gwdg.de dstalke@chemie.uni-goettingen.de.
Abstract:
Herein, we report the synthesis of a new sterically demanding hyper-coordinate phosphasilene (Mes*PSi(SiMe3)(PhC(N t Bu)2) (1) and its unprecedented reactivity with metal carbonyls (M = Fe, Mo, W). The reaction of 1 with Fe(CO)5 involves the deoxygenative homocoupling of two CO molecules, forming a rare ketene (μ-CCO) inserted Fe complex 2. Contrastingly, reactions with M(CO)6 (M = Mo, W) entail the deoxygenated activation of one CO molecule, with the second CO molecule being trapped between Si and P atoms. All the compounds including their crystal structures, are thoroughly characterized and potential energy profiles for the reaction mechanisms are also explored.
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