Synthesis of Novel Aqua ƞ4-NNNO/Cu(II) Complexes as Rapid and Selective Oxidative Catalysts for O-Catechol: Fluorescence, Spectral, Chromotropism and Thermal Analyses

• Published in: Crystals (Basel) Vol. 11; no. 9; p. 1072
• Main Authors: Shraim, Amjad M., Salih, Kifah S. M., Al-Soufi, Ranim E., Al-Mhini, Soaad R., Ahmad, Mohammad I., Warad, Ismail
• Format: Journal Article
• Language: English
• Published: Basel MDPI AG 01.09.2021
• Subjects: Aqueous solutions; Benzoquinone; Catalytic oxidation; Catechol; Copper bromide; Copper chloride; Copper compounds; Cu(II) complexes; Fluorescence; Halochromism; Hydrogen peroxide; Imines; Ligands; Nitrates; NNNOH Schiff base; Optics; Oxidation; Oxidizing agents; Phenols; solvatochromism; Solvents; Berlin Germany; Japan; Germany

A new tetradentate Schiff base (SB), (E)-4-fluoro-2-(1-((2-(piperazin-1-yl)ethyl)imino)ethyl)phenol, was synthesized from condensation of 2-(1-piperazinyl)ethylamine and 5-fluoro-2-hydroxyacetophenone. This ligand was coordinated with three copper(II) salts (CuCl2, CuBr2 and Cu(NO3)2⸱3H2O) separatel...