The Experts below are selected from a list of 4728 Experts worldwide ranked by ideXlab platform

Andrew S Weller - One of the best experts on this subject based on the ideXlab platform.

Samantha K Furfari - One of the best experts on this subject based on the ideXlab platform.

Cameron G Royle - One of the best experts on this subject based on the ideXlab platform.

Dominic S Wright - One of the best experts on this subject based on the ideXlab platform.

  • coordination chemistry of the bench stable tris 2 pyridyl pnictogen ligands e 6 me 2 py 3 e as as double bond length as m dash o sb
    Dalton Transactions, 2021
    Co-Authors: Alex J Plajer, Daniel Crusius, Rajesh B Jethwa, Alvaro Garciaromero, Andrew D Bond, Raul Garciarodriguez, Dominic S Wright
    Abstract:

    Tripodal ligands with main group bridghead units are well established in coordination chemistry and single-site Organometallic Catalysis. Although a large number of tris(2-pyridyl) main group ligands [E(2-py)3] (E = main group element, 2-py = 2-pyridyl) spanning across the whole p-block are now synthetically acessible, only limited work has been done on the coordination chemistry on the tris(2-pyridyl) group 15 ligands for the heavier elements (As, Sb). In the current study we investigate the coordination chemistry of the ligand family E(6-Me-2-py)3 (E = As, Sb) and of the As(V) ligand OAs(6-Me-2-py)3. The air- and mositure-stability of all of these main group ligands makes them especially attractive in future catalytic applications.

  • coordination chemistry of the bench stable tris 2 pyridyl pnictogen ligands e 6 me 2 py 3 e as aso sb
    Dalton Transactions, 2021
    Co-Authors: Alex J Plajer, Daniel Crusius, Rajesh B Jethwa, Alvaro Garciaromero, Andrew D Bond, Raul Garciarodriguez, Dominic S Wright
    Abstract:

    Tripodal ligands with main group bridghead units are well established in coordination chemistry and single-site Organometallic Catalysis. Although a large number of tris(2-pyridyl) main group ligands [E(2-py)3] (E = main group element, 2-py = 2-pyridyl) spanning across the whole p-block are now synthetically acessible, only limited work has been done on the coordination chemistry on the tris(2-pyridyl) group 15 ligands for the heavier elements (As, Sb). In the current study we investigate the coordination chemistry of the ligand family E(6-Me-2-py)3 (E = As, Sb) and of the As(V) ligand OAs(6-Me-2-py)3. The air- and mositure-stability of all of these main group ligands makes them especially attractive in future catalytic applications.

Eric Monflier - One of the best experts on this subject based on the ideXlab platform.

  • cyclodextrin grafted polymers functionalized with phosphanes a new tool for aqueous Organometallic Catalysis
    Beilstein Journal of Organic Chemistry, 2014
    Co-Authors: Jonathan Potier, Frédéric Hapiot, Stephane Menuel, David Mathiron, Veronique Bonnet, Eric Monflier
    Abstract:

    New cyclodextrin (CD)-grafted polymers functionalized with water-soluble phosphanes were synthesized in three steps starting from polyNAS. Once characterized by NMR spectroscopy and size-exclusion chromatography, they were used as additives in Rh-catalyzed hydroformylation of 1-hexadecene. The combined supramolecular and coordinating properties of these polymers allowed increasing the catalytic activity of the reaction without affecting the selectivities.

  • a cyclodextrin dimer as a supramolecular reaction platform for aqueous Organometallic Catalysis
    Chemical Communications, 2013
    Co-Authors: Herve Bricout, Eric Monflier, David Landy, Estelle Leonard, Christophe Len, Claire Blaszkiewicz, Christine Cezard, Florence Djedainipilard, Sébastien Tilloy
    Abstract:

    A reaction platform based on a cyclodextrin dimer, which is able to simultaneously include a substrate in one cavity and an Organometallic catalyst into the other, proved to be highly efficient for aqueous hydroformylation reaction of higher olefins.

  • phosphane based cyclodextrins as mass transfer agents and ligands for aqueous Organometallic Catalysis
    Molecules, 2012
    Co-Authors: Sébastien Tilloy, Herve Bricout, Stephane Menuel, Cecile Binkowskimachut, Eric Monflier
    Abstract:

    The replacement of hazardous solvents and the utilization of catalytic processes are two key points of the green chemistry movement, so aqueous Organometallic catalytic processes are of great interest in this context. Nevertheless, these processes require not only the use of water-soluble ligands such as phosphanes to solubilise the transition metals in water, but also the use of mass transfer agents to increase the solubility of organic substrates in water. In this context, phosphanes based on a cyclodextrin skeleton are an interesting alternative since these compounds can simultaneously act as mass transfer agents and as coordinating species towards transition metals. For twenty years, various cyclodextrin-functionalized phosphanes have been described in the literature. Nevertheless, while their coordinating properties towards transition metals and their catalytic properties were fully detailed, their mass transfer agent properties were much less discussed. As these mass transfer agent properties are directly linked to the availability of the cyclodextrin cavity, the aim of this review is to demonstrate that the nature of the reaction solvent and the nature of the linker between cyclodextrin and phosphorous moieties can deeply influence the recognition properties. In addition, the impact on the catalytic activity will be also discussed.

  • Functionalized Cyclodextrins as First and Second Coordination Sphere Ligands for Aqueous Organometallic Catalysis
    European Journal of Inorganic Chemistry, 2012
    Co-Authors: Frédéric Hapiot, Herve Bricout, Sébastien Tilloy, Eric Monflier
    Abstract:

    Supramolecular Catalysis now forms a viable and challenging interdisciplinary topic that drives chemists to design new ligands and their metal complexes. Functionalized cyclodextrins (CDs) have attracted particular attention in this respect because of their molecular recognition and metal coordination ability. They can act both as first-coordination-sphere ligands through coordination of a phosphanyl or amino group onto the metal and as second-coordination-sphere ligands because of the inclusion of a guest molecule (substrate or ligand) inside their cavity. These combined features make functionalized CDs very special objects. The present review seeks to address the scope of these supramolecular entities as ligands for the elaboration of novel Organometallic complexes for aqueous Catalysis.

  • cyclodextrins as mass transfer additives in aqueous Organometallic Catalysis
    ChemInform, 2011
    Co-Authors: Herve Bricout, Frédéric Hapiot, Sébastien Tilloy, Anne Ponchel, Eric Monflier
    Abstract:

    During the past fifteen years, the use of chemically modified cyclodextrins (CDs) in aqueous Organometallic Catalysis has sig- nificantly contributed to enlarge the application field of biphasic processes in chemistry. In this paper, we describe how these su- pramolecular receptors became one of the most efficient solutions to solve mass transfer problems in aqueous Organometallic Catalysis. The scientific gaps that have been cleared to explain the exact role of the CDs in these biphasic systems are especially emphasized. In particular, the impact of supramolecular interactions between chemically modified CDs and substrates, water soluble ligands or or- ganometallic catalysts is addressed for a better understanding of the recognition processes involved in the catalytic reactions.