Current Advances in Metal Complexes

Dear Colleagues,

Metal complexes have been studied since the end of the nineteenth century and the early twentieth (1893–1913), starting from the pioneering work of A. Werner, who laid the foundation of coordination chemistry. 

The main thesis of his argument was that metals possess two types of valency, one of which is referred to as the “oxidation state", and the other of which has fixed directions with respect to the central metal and can be satisfied by either negative ions or neutral molecules, now referred to as the “coordination index”. This is the basis for the various stereochemistries found amongst coordination compounds. 

Subsequent work was published by N.V. Sidgwick (1927), L. Pauling (1933), H. Bethe, J.H. van Bleck (1936) and others. Such work expanded the field, which led to a greater understanding of the structures, bonding, stereochemistry and reactivity of metal complexes and the nature of the metal–ligand bond. 

IUPAC defines a coordination compound as any compound composed of a central atom, usually that of a metal, to which is attached a surrounding array of other atoms or groups of atoms, each of those called a ligand. 

Coordination chemistry is currently considered to be at the junction of different branches of chemistry, breaking the boundaries between organic, inorganic and physical chemistry. It is one of the most dynamic fields in recent interdisciplinary science, which lies at the interface between biology, physics and medicine. 

Special Issues are published from time to time on topics of current interest and importance and may also focus on contributions from a specific field. From A. Werner’s studies to the present day, the interest in coordination chemistry remains, and the field is truly wide. 

This Special Issue is dedicated to providing a modern and comprehensive understanding of the most important topics of the current advances in metal complexes.

Prof. María Luz Durán
Guest Editor

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