Special Issue "Phosphorus Ligands for Transition Metal Complexation and Homogeneous Catalysis"
Deadline for manuscript submissions: closed (31 August 2017)
Dr. Paul D. Newman
School of Chemistry, Cardiff University, Park Place, Cardiff, CF10 3AT, UK
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Interests: organophosphrous ligands; ring-expanded H-heterocyclic carbenes (NHCs); electrophilic P-donors; asymmetric ligands; reinforced tetraazamacrocycles; homogeneous catalysis; stereogenic-at-metal complexes
Organophosphorus ligands are a mainstay of both laboratory and industrial catalysis. From the pioneering research of Reppe in the 1940s and Wilkinson in 1965, phosphines and related P-donors have been the go-to ligands for a host of catalytic transformations including hydrogenation, hydrosilylation and other hydroelementations, carbonylations, oligomerisation, polymerization, dehydrocoupling and metathesis. Much of their success derives from the ability to manipulate their stereoelectronic character through the judicious choice of substituent and/or functionality attached to the phosphorus. At the extremes, organophosphorus ligands are net electron-donors or acceptors depending on the nature of the substituents and/or framework, with the accessible electronic range being larger than for any other ligand class. Aside from the electronic diversity, steric features can be varied dramatically allowing access to a huge and highly diverse ligand library including myriad stereogenic variants that are the dominant ligand type in asymmetric catalysis. It is the ready facility with which the stereoelectronic features can be tailored, coupled with the accessibility of asymmetric forms, that has underpinned the widespread use of P-donor ligands and helped drive the dramatic expansion in homogeneous catalysis over the past fifty years.
While the development of P-donors in transition metal chemistry is legendary, the usefulness of phospha-compounds extends beyond this remit as exemplified by the recent development of PR3 or PR4+ species as components in so-called frustrated Lewis pairs for metal-free activation of small molecules. While in its infancy, this represents a new strand in the ever-expanding, exciting chemistry of organophosphorus compounds and reinforces the continued expediency of phosphorus species.
This Special Issue of Molecules is dedicated to P-containing compounds, their metal complexes, and applications in catalysis. The issue covers, principally, but not exclusively, metal-based catalysts, and includes recent advances in metal-free and related systems.
Dr. Paul D. Newman
Manuscript Submission Information
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- organophosphorus compounds
- ligand design
- lewis bases
- lewis acids