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A Series of Umbrella-Shape Copper-Lanthanides Based Mixed Metallic Coordination Complexes
Date Issued
07-08-2019
Author(s)
Gorantla, N. V.T.Sai Manoj
Kushvaha, Saroj Kumar
Mandal, Rajkumar
Indian Institute of Technology, Madras
Abstract
A series of six hetero-bimetallic complexes having umbrella shape topology and general formula (L)2CuLn(NO3)(Ph3PO) have been synthesized by reacting a methanolic solution of diprotic ligand (H2L) [(E)-2-(((2-hydroxyphenyl)imino)methyl)-6-methoxyphenol] and co-ligand Ph3P=O with CuCl2.2H2O and Ln(NO3)3⋅6H2O (Ln= Gd(1), Tb(2),Dy(3), Ho(4), Er(5) and Y(6)) in the presence of triethylamine base. The iso-structural complexes (1-6) have been characterized by Single crystal XRD measurement. Elemental analysis, EPR, IR and UV/Vis spectra have been recorded to further characterise these complexes. The direct current (dc) and alternating current (ac) magnetic susceptibility measurements has been carried out to study magnetic properties of the complexes. Thermogravimetric analysis (TGA) has also been done to assess thermal stability of the complexes.
Volume
4