First-Row Transition Metal (De)Hydrogenation Catalysis Based On Functional Pincer Ligands

Chemical Reviews, Journal Year: 2018, Volume and Issue: 119(4), P. 2681 - 2751

Published: Dec. 31, 2018

The use of 3d metals in de/hydrogenation catalysis has emerged as a competitive field with respect to "traditional" precious metal catalyzed transformations. introduction functional pincer ligands that can store protons and/or electrons expressed by metal-ligand cooperativity and ligand redox-activity strongly stimulated this development conceptual starting point for rational catalyst design. This review aims at providing comprehensive picture the utilization first-row transition hydrogenation dehydrogenation related synthetic concepts relying on these such hydrogen borrowing methodology. Particular emphasis is put implementation relevance cooperating redox-active within mechanistic scenarios.

Language: Английский

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Homogeneous Catalysis by Cobalt and Manganese Pincer Complexes

ACS Catalysis, Journal Year: 2018, Volume and Issue: 8(12), P. 11435 - 11469

Published: Oct. 16, 2018

Homogeneous catalysis of organic transformations by metal complexes has been mostly based on noble metals. In recent years, tremendous progress made in the field base-metal catalysis, with pincer-type complexes, such as iron, cobalt, nickel, and manganese pincer systems. Particularly impressive is explosive growth Mn-based first being reported recently 2016. This review covers homogeneously catalyzed reactions using cobalt manganese. Various are described, including acceptorless dehydrogenation, hydrogenation, dehydrogenative coupling, hydrogen borrowing, transfer, H–X additions, C–C alkene polymerization N2 fixation, their scope brief mechanistic comments.

Language: Английский

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Designing Sites in Heterogeneous Catalysis: Are We Reaching Selectivities Competitive With Those of Homogeneous Catalysts?

Chemical Reviews, Journal Year: 2022, Volume and Issue: 122(9), P. 8594 - 8757

Published: March 3, 2022

A critical review of different prominent nanotechnologies adapted to catalysis is provided, with focus on how they contribute the improvement selectivity in heterogeneous catalysis. Ways modify catalytic sites range from use reversible or irreversible adsorption molecular modifiers immobilization tethering homogeneous catalysts and development well-defined solid surfaces. The latter covers methods for dispersion single-atom within supports as well complex nanostructures, it includes post-modification materials via processes such silylation atomic layer deposition. All these methodologies exhibit both advantages limitations, but all offer new avenues design specific applications. Because high cost most fact that resulting may limited thermal chemical stability, be best aimed at improving selective synthesis value-added chemicals, incorporated organic schemes, other applications are being explored address problems energy production, instance, greener processes. details each approaches discussed, representative examples provided. We conclude some general remarks future this field.

Language: Английский

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Strategies and mechanisms of metal–ligand cooperativity in first-row transition metal complex catalysts

Chemical Society Reviews, Journal Year: 2020, Volume and Issue: 49(24), P. 8933 - 8987

Published: Jan. 1, 2020

The use of metal–ligand cooperation (MLC) by transition metal bifunctional catalysts has emerged at the forefront homogeneous catalysis science.

Language: Английский

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Homogeneous manganese-catalyzed hydrogenation and dehydrogenation reactions

Chem, Journal Year: 2020, Volume and Issue: 7(5), P. 1180 - 1223

Published: Dec. 9, 2020

Language: Английский

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Siderophore-inspired chelator hijacks uranium from aqueous medium

Nature Communications, Journal Year: 2019, Volume and Issue: 10(1)

Published: Feb. 18, 2019

Over millennia, nature has evolved an ability to selectively recognize and sequester specific metal ions by employing a wide variety of supramolecular chelators. Iron-specific molecular carriers-siderophores-are noteworthy for their structural elegance, while exhibiting some the strongest most selective binding towards ion. Development simple uranyl (UO22+) recognition motifs possessing siderophore-like selectivity, however, presents challenge. Herein we report comprehensive theoretical, crystallographic spectroscopic studies on UO22+ with non-toxic siderophore-inspired chelator, 2,6-bis[hydroxy(methyl)amino]-4-morpholino-1,3,5-triazine (H2BHT). The optimal pKa values preorganization endow H2BHT one highest affinity selectivity among results small-molecule standards are validated proof-of-principle development H2BHT-functionalized polymeric adsorbent material that affords high uranium uptake capacity even in presence competing vanadium (V) aqueous medium.

Language: Английский

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PN³(P)-Pincer Complexes: Cooperative Catalysis and Beyond

ACS Catalysis, Journal Year: 2019, Volume and Issue: 9(3), P. 1619 - 1629

Published: Jan. 11, 2019

ADVERTISEMENT RETURN TO ISSUEPREVViewpointNEXTPN3(P)-Pincer Complexes: Cooperative Catalysis and BeyondHuaifeng LiHuaifeng LiKAUST Center Division of Physical Sciences Engineering, King Abdullah University Science Technology, Thuwal 23955-6900, Saudi ArabiaMore by Huaifeng Li, Théo P. GonçalvesThéo GonçalvesKAUST Gonçalves, Daniel LuppDaniel LuppKAUST Lupp, Kuo-Wei Huang*Kuo-Wei HuangKAUST Arabia*E-mail: [email protected]More Huanghttp://orcid.org/0000-0003-1900-2658Cite this: ACS Catal. 2019, 9, 3, 1619–1629Publication Date (Web):January 11, 2019Publication History Received8 November 2018Published online11 January 2019Published inissue 1 March 2019https://pubs.acs.org/doi/10.1021/acscatal.8b04495https://doi.org/10.1021/acscatal.8b04495editorialACS PublicationsCopyright © 2019 American Chemical Society. This publication is available under these Terms Use. Request reuse permissions free to access through this site. Learn MoreArticle Views8541Altmetric-Citations89LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum full text article downloads since 2008 (both PDF HTML) across all institutions individuals. These metrics regularly updated reflect usage leading up last few days.Citations number other articles citing article, calculated Crossref daily. Find more information about citation counts.The Altmetric Attention Score a quantitative measure attention that research has received online. Clicking on donut icon will load page at altmetric.com with additional details score social media presence for given article. how calculated. Share Add toView InAdd Full Text ReferenceAdd Description ExportRISCitationCitation abstractCitation referencesMore Options onFacebookTwitterWechatLinked InRedditEmail (2 MB) Get e-AlertscloseSUBJECTS:Catalysts,Ligands,Metals,Pincer complexes,Reactivity e-Alerts

Language: Английский

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Recent Progress with Pincer Transition Metal Catalysts for Sustainability

Catalysts, Journal Year: 2020, Volume and Issue: 10(7), P. 773 - 773

Published: July 11, 2020

Our planet urgently needs sustainable solutions to alleviate the anthropogenic global warming and climate change. Homogeneous catalysis has potential play a fundamental role in this process, providing novel, efficient, at same time eco-friendly routes for both chemicals energy production. In particular, pincer-type ligation shows promising properties terms of long-term stability selectivity, as well allowing mild reaction conditions low catalyst loading. Indeed, pincer complexes have been applied plethora chemical processes, such hydrogen release, CO2 capture conversion, N2 fixation, biomass valorization synthesis high-value fuels. work, we show main advances last five years use transition metal key catalytic processes aiming more

Language: Английский

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Emergence and Applications of Base Metals (Fe, Co, and Ni) in Hydroboration and Hydrosilylation

Molecules, Journal Year: 2019, Volume and Issue: 24(17), P. 3194 - 3194

Published: Sept. 3, 2019

Base metal catalysis offers an alternative to reactions, which were once dominated by precious metals in hydrofunctionalization reactions. This review article details the development of some base (Fe, Co, and Ni) hydroboration hydrosilylation reactions concomitant with a brief overview recent advances field. Applications both commercially available salts well-defined complexes opportunities further advance field is discussed as well.

Language: Английский

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Recent developments in the chemistry of non-trigonal pnictogen pincer compounds: from bonding to catalysis

Chemical Science, Journal Year: 2020, Volume and Issue: 11(36), P. 9728 - 9740

Published: Jan. 1, 2020

Pnictogen pincer complexes exhibit unique electronic structures which allow activation of a range E–H bonds and carbon nucleophiles.

Language: Английский

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