Issue 39, 2018

X-ray structure and magnetic and fluorescence characteristics of new Cu(ii) complexes with Schiff bases derived from 2-(2-aminoethyl)pyridine and 2-hydroxy-1-naphthaldehyde; morphology and fluorescence of their thin films

Abstract

Cu(II) complexes with tridentate Schiff bases derived from 2-(2-aminoethyl)pyridine and 2-hydroxy-1-naphthaldehyde and COO, Cl and NO3 as ligands were obtained and characterized by crystal and molecular, spectroscopic (UV-Vis, fluorescence, IR, and EPR), magnetic and thermal methods. The X-ray crystal structure analysis revealed a distorted square planar geometry for [Cu(II)(PEMN)CH3COO]CHCl3, 1, and [Cu(II)(PEMN)Cl], 2, and a distorted square-pyramidal geometry for [Cu(II)(PEMN)NO3], 3, corresponding to the values of EPR g-matrix diagonal components. The copper(II) complexes exhibited fluorescence in solution in the range of 370–410 nm. Thin layers of the studied copper(II) complexes were deposited on Si(111) by a spin coating method and studied by scanning electron microscopy (SEM/EDS), atomic force microscopy (AFM) and fluorescence spectroscopy. For copper(II) layers (2/Si), the most intense fluorescence band from an intraligand and a d–d transition between 490 and 550 nm was observed.

Graphical abstract: X-ray structure and magnetic and fluorescence characteristics of new Cu(ii) complexes with Schiff bases derived from 2-(2-aminoethyl)pyridine and 2-hydroxy-1-naphthaldehyde; morphology and fluorescence of their thin films

Supplementary files

Article information

Article type
Paper
Submitted
06 Aug 2018
Accepted
04 Sep 2018
First published
05 Sep 2018

Dalton Trans., 2018,47, 13902-13912

X-ray structure and magnetic and fluorescence characteristics of new Cu(II) complexes with Schiff bases derived from 2-(2-aminoethyl)pyridine and 2-hydroxy-1-naphthaldehyde; morphology and fluorescence of their thin films

M. Barwiolek, E. Szlyk, A. Kozakiewicz, T. Muziol, A. Bieńko and J. Jezierska, Dalton Trans., 2018, 47, 13902 DOI: 10.1039/C8DT03208D

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