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Issue 7, 2015
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Can low-valent silicon compounds be better transition metal ligands than phosphines and NHCs?

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Abstract

We investigated the potential application of experimentally characterized low-valent silicon compounds as transition metal ligands by computing the most important ligand properties, σ-donor and π-acceptor ability, ligand-to-metal charge transfer, and steric parameters and compared them to the generally used carbene and phosphine ligands. We found that several recently synthesized donor-stabilized low-valent silicon compounds can compete or even exceed the favorable features of commonly used carbene and phosphine ligands regarding all investigated ligand properties. We derive the general principles behind the enhanced features and conclude how even better low-valent silicon ligands can be designed with a slight modification of known compounds. Using our results as a database, one can choose an appropriate silicon-based ligand for transition metal catalysis.

Graphical abstract: Can low-valent silicon compounds be better transition metal ligands than phosphines and NHCs?

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Publication details

The article was received on 12 Nov 2014, accepted on 10 Dec 2014 and first published on 10 Dec 2014


Article type: Paper
DOI: 10.1039/C4RA14417A
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RSC Adv., 2015,5, 5077-5086
  • Open access: Creative Commons BY-NC license
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    Can low-valent silicon compounds be better transition metal ligands than phosphines and NHCs?

    Z. Benedek and T. Szilvási, RSC Adv., 2015, 5, 5077
    DOI: 10.1039/C4RA14417A

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