Evidence for Genuine Bimetallic Frustrated Lewis Pair Activation of Dihydrogen with Gold(I)/Platinum(0) Systems |
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| Authors: | Nereida Hidalgo Dr. Juan José Moreno Marina Pérez-Jiménez Dr. Celia Maya Dr. Joaquín López-Serrano Dr. Jesús Campos |
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| Affiliation: | Instituto de Investigaciones Químicas (IIQ), Departamento de Química Inorgánica and, Centro de Innovación en Química Avanzada (ORFEO-CINQA), Consejo Superior de Investigaciones Científicas (CSIC) and, University of Sevilla, Avenida Américo Vespucio 49, 41092 Sevilla, Spain |
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| Abstract: | A joint experimental/computational effort to elucidate the mechanism of dihydrogen activation by a gold(I)/platinum(0) metal-only frustrated Lewis pair (FLP) is described herein. The drastic effects on H2 activation derived from subtle ligand modifications have also been investigated. The importance of the balance between bimetallic adduct formation and complete frustration has been interrogated, providing for the first time evidence for genuine metal-only FLP reactivity in solution. The origin of a strong inverse kinetic isotopic effect has also been clarified, offering further support for the proposed bimetallic FLP-type cleavage of dihydrogen. |
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| Keywords: | bimetallic complexes cooperative effects hydrogen inverse kinetic isotopic effects frustrated Lewis pairs |
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