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Δευτέρα 27 Μαρτίου 2017

Synthesis, characterization, photoluminescence, and electrochemical studies of novel mononuclear Cu(II) and Zn(II) complexes with the 1-benzylimidazolium ligand

Publication date: 5 August 2017
Source:Journal of Molecular Structure, Volume 1141
Author(s): Sherino Bibi, Sharifah Mohammad, Ninie Suhana Abdul Manan, Jimmy Ahmad, Muhammad Afzal Kamboh, Sook Mei Khor, Bohari M. Yamin, Siti Nadiah Abdul Halim
Two new mononuclear coordination complexes [Cu(bim)4Cl2]⋅2H2O (1) and [Zn(bim)2Cl2] (2) containing the 1-benzylimidazole (bim) ligand were successfully synthesized. Both complexes were characterized by IR, UV–vis, and fluorescence spectroscopies, single crystal and powder X-ray diffraction measurements, and thermogravimetric analysis. Self-assembly during the recrystallization process resulted in the formation of octahedral and tetrahedral Cu(II) and Zn(II) complexes, respectively. The single crystals obtained are representative of the bulk material, as shown by the powder X-ray diffraction patterns. Cyclic voltammetry measurements showed that complex 1 undergoes a quasi-reversible redox reaction, while complex 2 undergoes reduction alone, and no oxidation peak was observed; this is due to the stability of the reduced form of complex 2.

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