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Catalysis and Its Contributions to Society: Theme Issue Honoring Professor Gerard van Koten on His 80th Birthday

A special issue of Molecules (ISSN 1420-3049). This special issue belongs to the section "Nanochemistry".

Deadline for manuscript submissions: closed (31 August 2022) | Viewed by 6493

Special Issue Editor

Prof. Dr. Ashok Kakkar

E-Mail Website
Guest Editor
Department of Chemistry, McGill University, 801 Sherbrooke St. West, Montreal, QC H3A 0B8, Canada
Interests: nanostructures; soft nanoparticles; macromolecules; dendrimers; miktoarm polymers; telodendrimers; naked nanocarriers; metal nanoparticles; gold nanoshells; iron oxide nanoparticles; nanomedicine; drug delivery; diagnostics
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Special Issue Information

Dear Colleagues,

Catalysis continues to provide a versatile platform in developing facile methodologies for products on which our everyday lives depend. Professor Gerard van Koten is a pioneer in this field, and his research in organometallic chemistry has contributed significantly in advancing the scope of fine chemical synthesis. Molecules is honored to host a Special Issue entitled “Catalysis and Its Contributions to Society: Theme Issue Honoring Professor Gerard van Koten on His 80th Birthday” and congratulate Professor Gerard van Koten in celebrating another milestone in 2022, together with the outstanding contributions he has made to the growth of homogeneous catalysis.

Professor Gerard van Koten obtained his MSc in 1967 and subsequently joined the group of Professor Dr. G.J.H. van der Kerk, where he worked on organocopper compounds. He received his PhD in 1974 (Summa Cum Laude) from Utrecht University (Netherlands). In 1977, he joined the Department of Inorganic Chemistry, University of Amsterdam, where he stayed until 1986 and was Chair (Personal) of Organometallic Chemistry from 1984 to 1986. He then moved back to Utrecht University as Chair of Organic Chemistry and Catalysis, Debye Institute for Nanomaterials Science. He was a Professor of Organic Chemistry and Dean of Science at Utrecht, and he was also appointed as a Distinguished University Professor from 2004 to 2012. He retired in October 2007; in the same year, he was appointed as a Knight in the Order of the Dutch Lion. After retirement, Professor van Koten was a Part-Time Distinguished Research Professor at the University of Cardiff (UK) from 2007 to 2010 and Honorary Distinguished Professor from 2011 to 2016. He has been a member of the Royal Netherlands Academy of Arts and Science and the Foresight Chemistry Group for the coordination and initiation of innovation in industry and academia in the Netherlands. He has also been the Chairman of the Ministry for Education and Science (Netherlands) committee for the renewal of the Chemistry Education Program at pre-university level (2003–2011) and a consultant for DSM, Novartis, DOW, Ciba Specialty Chemicals, Arkema Vlissingen, and Givaudan. Professor van Koten was a Visiting Professor at several premium institutions, including Fribourg (Switzerland), Heidelberg and Dortmund (Germany), Strasbourg (France), Salt Lake City (USA), and Sassari (Italy). He has also been North West Pacific Inorganic Chemistry Lecturer (Canada/USA), Merck Lecturer of Organic Synthesis, and Sasol Lecturer in Homogenous Catalysis (Canada).

There is tremendous diversity in the research carried out by the group of Professor van Koten. His group has been actively studying organometallic catalysis from an applied perspective, as well as developing fundamental understanding of structure–property relationships. He is very well known in the scientific community for his pioneering work on pincer metal complexes. His group demonstrated the first examples of metallodendrimers as homogeneous catalysts. He still runs an active research group with current interests in sustainable chemistry. Professor van Koten has published more than 800 papers and has 35 patents. He has served on the boards of several journals, including Chemistry—A European Journal, Organometallics, and Topics in Organometallic Chemistry. He has also been a member of the scientific advisory board of Molecular Frontiers, a virtual institute with the goal of promoting science in society.

Professor Ashok Kakkar and the Editors of Molecules invite scientists to join them in celebrating Professor Gerard van Koten and his contributions to science by submitting original research articles as well as reviews to this Special Issue.

Prof. Dr. Ashok Kakkar
Guest Editor

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Keywords

  • Catalysis
  • Homogeneous catalysis
  • Organometallic chemistry
  • Organic chemistry
  • Pincer complexes
  • Metallodendrimers in catalysis
  • Organometallic catalysis in polymer chemistry
  • Catalysis for biomedical applications
  • Green chemistry
  • Sustainable chemistry

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Published Papers (2 papers)

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Research

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11 pages, 1519 KiB  
Article
Synthesis, Characterization, and Catalytic Exploration of Mononuclear Mo(VI) Dioxido Complexes of (Z)-1-R-2-(4′,4′-Dimethyl-2′-oxazolin-2′-yl)-eth-1-en-1-ates
by Anna Petrov, Jeanette A. Adjei, Alan J. Lough, R. Stephen Wylie and Robert A. Gossage
Molecules 2022, 27(4), 1309; https://doi.org/10.3390/molecules27041309 - 15 Feb 2022
Cited by 3 | Viewed by 2077
Abstract
The coordination chemistry of the title ligands with Mo metal centers was investigated. Thus, the synthesis and characterization (NMR, X-ray diffraction) of four mononuclear formally Mo(6+) complexes of (Z)-1-R-2-(4′,4′-dimethyl-2′-oxazolin-2′-yl)-eth-1-en-1-ates (L: R = –Ph, –Ph-p-NO2, –Ph- [...] Read more.
The coordination chemistry of the title ligands with Mo metal centers was investigated. Thus, the synthesis and characterization (NMR, X-ray diffraction) of four mononuclear formally Mo(6+) complexes of (Z)-1-R-2-(4′,4′-dimethyl-2′-oxazolin-2′-yl)-eth-1-en-1-ates (L: R = –Ph, –Ph-p-NO2, –Ph-p-OMe and –t-Bu), derived from the part enols (LH), is described. The resulting air-stable MoO2L2 complexes (1–4) exist, as shown by single-crystal X-ray diffraction experiments, in the cis-dioxido-trans(N)-κ2-N,O-L conformation in the solid state for all four examples. This situation was further probed using semi-empirical PM6(tm) calculations. Complexes 1–4 represent the first Mo complexes of this ligand class and, indeed, of Group 6 metals in general. Structural and spectroscopic comparisons were made between these and related Mo(6+) compounds. Complex 1 (R = –Ph) was studied for its ability to selectively catalyze the production of poly-norbornene from the monomer in the presence of MAO. This, unfortunately, only resulted in the synthesis of insoluble, presumably highly cross-linked, polymeric and/or oligomeric materials. However, complexes 1–4 were demonstrated to be highly effective for catalyzing benzoin to benzil conversion using DMSO as the O-transfer agent. This catalysis work is likewise put into perspective with respect to analogous Mo(6+) complexes. Full article
(This article belongs to the Special Issue Catalysis and Its Contributions to Society: Theme Issue Honoring Professor Gerard van Koten on His 80th Birthday)
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Review

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21 pages, 6344 KiB  
Review
C,C- and C,N-Chelated Organocopper Compounds
by Liang Liu, Hui Chen, Zhenqiang Yang, Junnian Wei and Zhenfeng Xi
Molecules 2021, 26(19), 5806; https://doi.org/10.3390/molecules26195806 - 25 Sep 2021
Cited by 4 | Viewed by 3370
Abstract
Copper-catalyzed and organocopper-involved reactions are of great significance in organic synthesis. To have a deep understanding of the reaction mechanisms, the structural characterizations of organocopper intermediates become indispensable. Meanwhile, the structure-function relationship of organocopper compounds could advance the rational design and development of [...] Read more.
Copper-catalyzed and organocopper-involved reactions are of great significance in organic synthesis. To have a deep understanding of the reaction mechanisms, the structural characterizations of organocopper intermediates become indispensable. Meanwhile, the structure-function relationship of organocopper compounds could advance the rational design and development of new Cu-based reactions and organocopper reagents. Compared to the mono-carbonic ligand, the C,N- and C,C-bidentate ligands better stabilize unstable organocopper compounds. Bidentate ligands can chelate to the same copper atom via η2-mode, forming a mono-cupra-cyclic compounds with at least one acute C-Cu-C angle. When the bidentate ligands bind to two copper atoms via η1-mode at each coordinating site, the bimetallic macrocyclic compounds will form nearly linear C-Cu-C angles. The anionic coordinating sites of the bidentate ligand can also bridge two metals via μ2-mode, forming organocopper aggregates with Cu-Cu interactions and organocuprates with contact ion pair structures. The reaction chemistry of some selected organocopper compounds is highlighted, showing their unique structure–reactivity relationships. Full article
(This article belongs to the Special Issue Catalysis and Its Contributions to Society: Theme Issue Honoring Professor Gerard van Koten on His 80th Birthday)
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