scholarly journals A general route to chiral nanostructures from helical polymers: P/M switch via dynamic metal coordination

2017 ◽  
Vol 8 (24) ◽  
pp. 3740-3745 ◽  
Author(s):  
Sandra Arias ◽  
Manuel Núñez-Martínez ◽  
Emilio Quiñoá ◽  
Ricardo Riguera ◽  
Félix Freire
Keyword(s):  
Coordination Chemistry ◽  
Metal Complexes ◽  
Metal Coordination ◽  
Helical Polymers ◽  
Helical Polymer ◽  
Dynamic Coordination ◽  
Polymer Metal ◽  
Chiral Nanostructures

Macroscopically enantiomeric chiral nanospheres made from P or M helical polymer metal complexes can be obtained via dynamic coordination chemistry.

scholarly journals The role of the secondary structure of helical poly(phenylacetylene)s in the formation of nanoparticles from polymer–metal complexes (HPMCs)

Nanoscale ◽  
2017 ◽  
Vol 9 (45) ◽  
pp. 17752-17757 ◽  
Author(s):  
Rafael Rodríguez ◽  
Sandra Arias ◽  
Emilio Quiñoá ◽  
Ricardo Riguera ◽  
Félix Freire
Keyword(s):  
Secondary Structure ◽  
Metal Complexes ◽  
Helical Polymers ◽  
Helical Polymer ◽  
Polymer Metal

The secondary structure of chiral helical polymers forming helical polymer–metal complexes (HPMCs) plays a major role in their subsequent nanostructuration.

Nanospheres with Tunable Size and Chirality from Helical Polymer–Metal Complexes

2012 ◽  
Vol 134 (47) ◽  
pp. 19374-19383 ◽  
Author(s):  
Félix Freire ◽  
José Manuel Seco ◽  
Emilio Quiñoá ◽  
Ricardo Riguera
Keyword(s):  
Metal Complexes ◽  
Helical Polymer ◽  
Polymer Metal

scholarly journals 100 years of metal coordination chemistry: from Alfred Werner to anticancer metallodrugs

2014 ◽  
Vol 86 (12) ◽  
pp. 1897-1910 ◽  
Author(s):  
Nicolas P. E. Barry ◽  
Peter J. Sadler
Keyword(s):  
Coordination Chemistry ◽  
Metal Complexes ◽  
Oxidation State ◽  
Metal Ion ◽  
Outer Sphere ◽  
Metal Coordination ◽  
Substitution Reactions ◽  
Diagnostic Agents ◽  
New Thinking ◽  
Alfred Werner

Abstract Alfred Werner was awarded the Nobel Prize in Chemistry just over 100 years ago. We recall briefly the era in which he was working, his co-workers, and the equipment he used in his laboratories. His ideas were ground breaking: not only does a metal ion have a primary valency (“hauptvalenz”, now the oxidation state), but also a secondary valency, the coordination number (“nebenvalenz”). At that time some refused to accept this idea, but he realised that his new thinking would open up new areas of research. Indeed it did. We illustrate this for the emerging field of medicinal metal coordination chemistry, the design of metal-based therapeutic and diagnostic agents. The biological activity of metal complexes depends intimately not only on the metal and its oxidation state, but also on the type and number of coordinated ligands, and the coordination geometry. This provides a rich platform in pharmacological space for structural and electronic diversity. It is necessary to control both the thermodynamics (strengths of metal-ligand bonds) and kinetics of ligand substitution reactions to provide complexes with defined mechanisms of action. Outer-sphere interactions can also play a major role in target recognition. Our current interest is focussed especially on relatively inert metal complexes which were very familiar to Werner (RuII, OsII, RhIII, IrIII, PtII, PtIV).

Fifteen Years of Scientific Investigation into Main Groups and Transition Metal Coordination Chemistry with Allan White

2020 ◽  
Vol 73 (6) ◽  
pp. 399
Author(s):  
Claudio Pettinari ◽  
Alessia Tombesi ◽  
Fabio Marchetti ◽  
Corrado Di Nicola ◽  
Riccardo Pettinari
Keyword(s):  
Coordination Chemistry ◽  
Transition Metal ◽  
Metal Complexes ◽  
Transition Metal Complexes ◽  
Scientific Collaboration ◽  
Scientific Investigation ◽  
Metal Coordination ◽  
Research Groups ◽  
Massive Number ◽  
Data Result

The outcomes of the investigations on the structures and reactivity of a massive number of main group and transition metal complexes containing different families of ligands are reviewed. All the data result from the scientific collaboration between the research groups of Claudio Pettinari and Allan White which lasted fifteen years.

scholarly journals Multipodal dynamic coordination involving cation–π interactions to control the structure of helical polymers

2017 ◽  
Vol 53 (61) ◽  
pp. 8573-8576 ◽  
Author(s):  
Mohammad Alzubi ◽  
Sandra Arias ◽  
Iria Louzao ◽  
Emilio Quiñoá ◽  
Ricardo Riguera ◽  
...  
Keyword(s):  
Metal Complexes ◽  
Helical Polymers ◽  
Π Interactions ◽  
Dynamic Coordination

Dynamic coordination, by means of multipodal metal complexes and cation–π interactions, controls the structure of helical polymers.

Fine-Tuning Electronic Properties of Luminescent Pt(II) Complexes via Vertex-Differentiated Coordination of Sterically Invariant Carborane-Based Ligands

2018 ◽  
Author(s):  
Kent O. Kirlikovali ◽  
Jonathan C. Axtell ◽  
Kierstyn Anderson ◽  
Peter I. Djurovich ◽  
Arnold L. Rheingold ◽  
...  
Keyword(s):  
Coordination Chemistry ◽  
Metal Complexes ◽  
Electronic Properties ◽  
Fine Tuning ◽  
Fine Tune

We report the synthesis of two isomeric Pt(II) complexes ligated by doubly deprotonated 1,1′-bis(<i>o</i>-carborane) (<b>bc</b>). This work provides a potential route to fine-tune the electronic properties of luminescent metal complexes by virtue of vertex-differentiated coordination chemistry of carborane-based ligands.

scholarly journals Interconversion between Möbius chiroptical states sustained by hexaphyrin dynamic coordination

2021 ◽  
Vol 57 (29) ◽  
pp. 3559-3562
Author(s):  
Bernard Boitrel ◽  
Stéphane Le Gac
Keyword(s):  
Metal Complexes ◽  
Dynamic Coordination

Unprecedented Möbius-type chiroptical switches result from interplaying a dynamic π-system, labile metal complexes and tunable transfers of chirality.

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