Zinc is present in most body cells of human beings, but its concentration is very low. Zinc(II) ion has been widely found in several metalloenzymes such as zinc-peptidases, human carbonic anhydrase and alkalinephosphatase [1]. Today more than 200 different zinc proteins are known which include numerous essential enzymes [2]. Metallothioneins, proteins containing zinc, remain unique in character...

Coordination chemistry is a challenging field in inorganic chemistry and has evolved as an important subject area in current research activities. Coordination compounds have been known for well over a century and the scientific interest in these compounds increased dramatically. The field of coordination chemistry has been widely explored. The recent surge in the popularity of coordination comp...

Copper (II) is a biologically active essential ion and it forms the active centers in several metalloenzymes and proteins. Its chelating ability and positive redox potential allow participation in biological transport reactions. The copper atom transforms between the Cu(I) and Cu(II) oxidation states in redox reactions involving copper containing enzymes. This is an essential factor for many of...