In the title compound, (C(5)H(14)N(2))[CuCl(4)], the copper(II) ion has a slightly tetra-hedrally distorted square-planar coordin-ation geometry and the diprotonated piperazine ring adopts a chair conformation. In the crystal structure, cations and anions are linked by inter-molecular N-H⋯Cl hydrogen bonds, forming a three-dimensional network.

Although metal ion homeostasis in cells is often mediated through metallochaperones, there are opportunities for toxic metals to be sequestered through the existing transport apparatus. Proper trafficking of Cu(I) in human cells is partially achieved through complexation by HAH1, the human metallochaperone responsible for copper delivery to the Wilson and Menkes ATPase located in the trans-Golg...

In this work the individual and combined effect of four process parameters, i.e. initial copper (II) concentration, adsorbent dose, initial solution pH, and contact time on the adsorption of copper (II) from aqueous solution were studied by neem bark powder (NBP) using response surface methodology (RSM) approach based on central composite design (CCD). Copper (II) removal is maximum at the pH: ...

Research this year in the laboratory and field continued to show that the bactericidal action of copper compounds could be greatly increased by amending them with iron. There are at least three different mechanisms which cause the increased efficacy: 1) When soluble iron is added to fixed coppers at amounts ranging from 10 to 100 ppm, the ferric iron interacts synergistically with the copper io...

Small molecules can display certain electronic and structural features that enable their use for metal-sensing applications in different fields. Of the reported metal sensors, there has been increasing interest copper sensing past decade, given biological importance of as well its presence a potential contaminant water fuels. Molecules used copper(II) generally consist fluorophore/chromophore l...

A novel bis-imidazolyl tetradentate Schiff base ligand (H2L) has been prepared from the condensation of imidazole2-carbaldehyde and 1,3-diaminopropane. The ligand reacts with copper(II) perchlorate in neutral medium to yield the mononuclear complex [Cu(H2L)(ClO4)]ClO4‚H2O. A single-crystal X-ray diffraction study confirmed the expected structure, C11H16N6O9Cl2Cu, triclinic, P1h, a ) 8.875(2) Å,...