Add time:07/18/2019         Source:sciencedirect.com

Synthetic methods for the preparation of the heterocyclic ligand 2-pyridylmethylene-1-amino-2-naphthol (PMAN) and its complexes with copper(II), nickel(II) and cobalt(III) are described. The structure of the ligand and of its metal complexes has been investigated by IR, UV/VIS and mass spectroscopy, and by elemental analysis. It has been found that the azomethine compound PMAN behaves as a tridentate ligand which forms various types of complexes. The Cu(II)-PMAN complex tends to form a chelate of ML type and with perchlorate as an anion. The Ni(II)-PMAN complex forms an ML2 type of neutral complex, while the Co(III)-PMAN complex has the same ML2 stoichiometry, but with perchlorate as an anion.The dyestuffs have been used for wool dyeing under a controlled dyeing process. Parameters such as the optimal dyeing temperature, exhaustion with time and fixing on fabrics under acidic conditions have been determined.

We also recommend Trading Suppliers and Manufacturers of 1-Amino-2-naphthol hydrochloride (cas 1198-27-2). Pls Click Website Link as below: cas 1198-27-2 suppliers