Organometallic Pincer Chemistry

A special issue of Inorganics (ISSN 2304-6740). This special issue belongs to the section "Organometallic Chemistry".

Deadline for manuscript submissions: closed (30 April 2022) | Viewed by 5167

Special Issue Editor


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Guest Editor
Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza, Calle de Pedro Cerbuna, 12, 50009 Zaragoza, Spain
Interests: reaction mechanisms in organometallic chemistry; transition metal homogeneous catalysts; hydride complexes; pincer ligands; functional ligands

Special Issue Information

Dear Colleagues,

Our perspective on the role of ligands in coordination and organometallic chemistry has substantially changed in the last few decades as we have been able to recognize ligand contributions beyond stereo-electronic influence. Hemilabile groups, hydrogen-bonding sources, lone electron pairs, unsaturated moieties, extended π systems, etc., are nowadays intentionally installed in ligands to help bond cleavage and formation in reagents, to combat odd-electron chemistry in base metal complexes, to favor supramolecular organization, etc. Pincer ligands, which are tridentate and expected to coordinate predominantly in the meridional fashion, are not alien to such ligand design developments. On the contrary, they have emerged as ideal scaffolds to incorporate functional gadgets at predictable distances and orientations relative to metal centers, also providing exceptional stabilities. Moreover, despite their current generalized use, the infinite number of possible combinations of donor atoms and skeletons still offers an unlimited horizon of new structures and functions. Aimed at showcasing present and possible directions in the design of such compounds, this Special Issue focuses on research and review articles featuring pincer organometallic complexes and their catalytic, optical, medical, or material science applications.

Dr. Eduardo Sola
Guest Editor

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Keywords

  • New pincer ligands and complexes
  • Metal-ligand cooperation
  • Bond cleavage and formation mechanisms
  • Pincer catalysts
  • Redox-active pincer ligands
  • Luminescent pincers
  • Anticancer and antimicrobial pincers

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Published Papers (1 paper)

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Review

65 pages, 14124 KiB  
Review
Pincer Complexes Derived from Tridentate Schiff Bases for Their Use as Antimicrobial Metallopharmaceuticals
by Alberto Aragón-Muriel, Viviana Reyes-Márquez, Farrah Cañavera-Buelvas, Jesús R. Parra-Unda, Fernando Cuenú-Cabezas, Dorian Polo-Cerón, Raúl Colorado-Peralta, Galdina V. Suárez-Moreno, Bethsy Adriana Aguilar-Castillo and David Morales-Morales
Inorganics 2022, 10(9), 134; https://doi.org/10.3390/inorganics10090134 - 5 Sep 2022
Cited by 28 | Viewed by 4153
Abstract
Within the current challenges in medicinal chemistry, the development of new and better therapeutic agents effective against infectious diseases produced by bacteria, fungi, viruses, and parasites stands out. With chemotherapy as one of the main strategies against these diseases focusing on the administration [...] Read more.
Within the current challenges in medicinal chemistry, the development of new and better therapeutic agents effective against infectious diseases produced by bacteria, fungi, viruses, and parasites stands out. With chemotherapy as one of the main strategies against these diseases focusing on the administration of organic and inorganic drugs, the latter is generally based on the synergistic effect produced by the formation of metal complexes with biologically active organic compounds. In this sense, Schiff bases (SBs) represent and ideal ligand scaffold since they have demonstrated a broad spectrum of antitumor, antiviral, antimicrobial, and anti-inflammatory activities, among others. In addition, SBs are synthesized in an easy manner from one-step condensation reactions, being thus suitable for facile structural modifications, having the imine group as a coordination point found in most of their metal complexes, and promoting chelation when other donor atoms are three, four, or five bonds apart. However, despite the wide variety of metal complexes found in the literature using this type of ligands, only a handful of them include on their structures tridentate SBs ligands and their biological evaluation has been explored. Hence, this review summarizes the most important antimicrobial activity results reported this far for pincer-type complexes (main group and d-block) derived from SBs tridentate ligands. Full article
(This article belongs to the Special Issue Organometallic Pincer Chemistry)
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