Synthesis and coordination studies of 5-(4′-carboxyphenyl)-10,15,20-tris(pentafluorophenyl)porphyrin and its pyrrolidine-fused chlorin derivative

2018 ◽  
Vol 42 (10) ◽  
pp. 8169-8179 ◽  
Author(s):  
José Almeida ◽  
André M. N. Silva ◽  
Susana L. H. Rebelo ◽  
Luís Cunha-Silva ◽  
Maria Rangel ◽  
...  
Keyword(s):  
Metal Complexes ◽  
Efficient Strategy ◽  
Potential Applications ◽  
Chlorin Derivative

An efficient strategy was developed to obtain carboxyphenyl porphyrin, chlorins and metal complexes, with potential applications in photonics and biology.

scholarly journals Schiff base metal complex as a potential therapeutic drug in medical science: A critical review

BIBECHANA ◽  
2021 ◽  
Vol 18 (1) ◽  
pp. 214-230
Author(s):  
Narendra Kumar Chaudhary ◽  
Biswash Guragain ◽  
Siyanand Kumar Chaudhary ◽  
Parashuram Mishra
Keyword(s):  
Schiff Base ◽  
Metal Complexes ◽  
Base Metal ◽  
Medical Science ◽  
Emerging Diseases ◽  
Therapeutic Drug ◽  
Significant Research ◽  
Potential Applications ◽  
Global Threat ◽  
Schiff Base Metal Complexes

The discovery of new chemotherapeutics with novel bioactivities and functionalities to fight current emerging diseases has become the most significant research in pharmaceutical science. Schiff bases are versatile pharmacophores that can form complexes by chelation with metals of different oxidation states. Over a few decades of intensive research on metal-based drugs, Schiff base metal complexes have been considered as the active field of research in coordination chemistry, owing to their valuable applications in various fields of science. As therapeutic drugs, they have potential applications as antibiotic, antimicrobial, antitumor, antiviral, anti-inflammatory, analgesic, antifungal, and many more. There has been a global threat of drug resistance in medical science in recent years because most of the pathogenic organisms are developing the ability to deactivate drug substances. For this reason, it requires urgent attention from chemical and pharmaceutical scientists to address the severe challenges of multidrug resistance. This review summarizes the current developments in the last few decades' research on the chemotherapeutic activities of Schiff base metal complexes. BIBECHANA 18 (2021) 214-230

scholarly journals Molecular design of luminescent metal-based materials

2001 ◽  
Vol 73 (3) ◽  
pp. 543-548 ◽  
Author(s):  
Vivian Wing-Wah Yam
Keyword(s):  
Transition Metal ◽  
Metal Complexes ◽  
Building Block ◽  
Molecular Design ◽  
Metal Chalcogenide ◽  
Potential Applications ◽  
Photochemical Properties ◽  
Polynuclear Metal Complexes ◽  
Luminescence Behavior

A series of soluble di- and polynuclear transition-metal acetylides with rich luminescence behavior have been designed and successfully isolated. The photophysical and photochemical properties have been studied. Luminescent polynuclear metal complexes have also been obtained based on the metal chalcogenide building block. These high-nuclearity transition-metal chalcogenide complexes have been structurally characterized and shown to display rich luminescence behavior. Various approaches and strategies to design and synthesize luminescent polynuclear metal complexes that may find potential applications as chemosensors and luminescence signalling devices will also be described.

scholarly journals Half- and mixed-sandwich metallacarboranes for potential applications in medicine

2019 ◽  
Vol 91 (4) ◽  
pp. 563-573 ◽  
Author(s):  
Marta Gozzi ◽  
Benedikt Schwarze ◽  
Evamarie Hey-Hawkins
Keyword(s):  
Organic Chemistry ◽  
Transition Metal ◽  
Transition Metals ◽  
Metal Complexes ◽  
Transition Metal Complexes ◽  
Structural Features ◽  
Biological Stability ◽  
Potential Applications ◽  
Sandwich Type ◽  
Isolobal Analogy

Abstract Today, medicinal chemistry is still clearly dominated by organic chemistry, and commercially available boron-based drugs are rare. In contrast to hydrocarbons, boranes prefer the formation of polyhedral clusters via delocalized 3c2e bonds, such as polyhedral dicarba-closo-dodecaborane(12) (closo-C2B10H12). These clusters have remarkable biological stability, and the three isomers, 1,2- (ortho), 1,7- (meta), and 1,12-dicarba-closo-dodecaborane(12) (para), have attracted much interest due to their unique structural features. Furthermore, anionic nido clusters ([7,8-C2B9H11]2−), derived from the neutral icosahedral closo cluster 1,2-dicarba-closo-dodecaborane(12) by deboronation followed by deprotonation are suitable ligands for transition metals and offer the possibility to form metallacarboranes, for example via coordination through the upper pentagonal face of the cluster. The isolobal analogy between the cyclopentadienyl(–1) ligand (Cp−) and [C2B9H11]2− clusters (dicarbollide anion, Cb2−) is the motivation in using Cb2− as ligand for coordination to a metal center to design compounds for various applications. This review focuses on potential applications of half- and mixed-sandwich-type transition metal complexes in medicine.

Recent advances in acylpyrazolone metal complexes and their potential applications

2015 ◽  
Vol 303 ◽  
pp. 1-31 ◽  
Author(s):  
Fabio Marchetti ◽  
Riccardo Pettinari ◽  
Claudio Pettinari
Keyword(s):  
Metal Complexes ◽  
Recent Advances ◽  
Potential Applications

Recent developments in dipyrrin based metal complexes: Self-assembled nanoarchitectures and materials applications

2020 ◽  
Vol 24 (05n07) ◽  
pp. 646-661
Author(s):  
Qian Jiang ◽  
Nicolas Desbois ◽  
Shifa Wang ◽  
Claude P. Gros
Keyword(s):  
Metal Complexes ◽  
Coordination Polymers ◽  
Luminescent Material ◽  
Orbital Ordering ◽  
Heteroleptic Complexes ◽  
Supramolecular Coordination ◽  
Recent Developments ◽  
Potential Applications ◽  
Metal Organic ◽  
Self Assembled

While dipyrrin-boron complexes (BODIPYs) and their derivatives have attracted much attention, dipyrrin-based metal complexes recently appeared as a novel luminescent material. So far, dipyrrin-metal complexes have been regarded as non-luminescent or weakly luminescent. Interestingly, introduction of steric hindrance at the meso-position and the development of heteroleptic complexes with proper frontier orbital ordering are two recent strategies that have been developed to improve their luminescent ability. Compared with BODIPYs, one of the distinctive advantages of dipyrrin-metal complexes is that they can form a series of self-assembled supramolecules and polymer assemblies via facile coordination reactions. In recent times, several supramolecular, coordination polymers and Metal-Organic Frameworks (MOFs) have been developed, [Formula: see text] by spontaneous coordination reactions between dipyrrin ligands and metal ions. As a novel luminescent material, dipyrrin-metal complexes have been applied in many fields. This review article summarizes recent developments in dipyrrin-metal complexes from the viewpoint of the improvement of luminescent ability, the formation of supramolecular and coordination polymers and their potential applications.

Schiff bases and their metal complexes with biologically compatible metal ions; biological importance, recent trends and future hopes

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Ezzat Khan ◽  
Muhammad Hanif ◽  
Muhammad Salim Akhtar
Keyword(s):  
Photodynamic Therapy ◽  
Metal Ions ◽  
Metal Complexes ◽  
Schiff Bases ◽  
Free Ligand ◽  
Material Chemistry ◽  
Potential Applications ◽  
Long Time ◽  
Recent Trends ◽  
Almost All

Abstract Schiff bases are in the field of medicinal and material chemistry for a long time. There are several advancements from time to time towards facile synthesis and potential applications. As medicines they have been applied as organic molecules as well as their metal complexes. The activities of metal complexes have been found to increase due to increase lipophilicity in comparison to the corresponding free ligand. Besides simple coordination compounds they have been applied as ionic liquid (IL)- supported and IL-tagged species with far enhanced efficiency. Among metal complexes recent advancement deals with photodynamic therapy to treat a number of tumors with fewer side effects. Schiff bases are efficient ligands and their complexes with almost all metal ions are reported. This mini-review article deals with complexes of Schiff bases with biologically compatible metal ions, Co(II), Cu(II), Zn(II), Pd(II), Ag(I), Pt(II) and their potential uses to combat cancerous cells. Strong hopes are associated with photodynamic therapy and IL-tagged and IL-supported Schiff bases and their complexes.

Use of metal complexes to synthesize semiconductor nanoparticles

2006 ◽  
Vol 78 (9) ◽  
pp. 1691-1702 ◽  
Author(s):  
N. Revaprasadu ◽  
S. N. Mlondo
Keyword(s):  
Metal Complexes ◽  
Shape Control ◽  
Semiconductor Nanoparticles ◽  
Reaction Conditions ◽  
The Past ◽  
Molecular Precursor ◽  
Potential Applications ◽  
Huge Impact ◽  
Precursor Route ◽  
Mechanism Of Growth

Research in materials with dimensions of the order of nanometers has made a huge impact on the scientific community in the past decade. Chemists play an important role in this area of research as they endeavor to prepare pure, crystalline, surface-derivatized nanoparticles, which can be processed in potential applications. This review describes some of the routes to nanoparticles with particular emphasis on the use of metal complexes in the preparation of high-quality nanoparticles. The synthesis of II/VI semiconductor nanoparticles such as CdSe, CdS, ZnS, and PbS using the single molecular precursor route is reviewed in detail. The synthesis of some III/V semiconductor materials is also briefly discussed. Finally, current work on the shape control of nanoparticles is described. The mechanism of growth induced by variation of reaction conditions is discussed using CdSe nanoparticles as an example.

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