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Title: Synthesis and spectroscopic characterization of lanthanide complexes derived from 9,10-phenanthrenequinone and Schiff base ligands containing N, O donor atoms
Authors: Paswan, Sikandar
Anjum, Afreen
Singh, Avadhesh Pratap
Dubey, Raj Kumar
Keywords: Lanthanide complexes;Schiff bases;Powder X-ray diffraction;Thermogravimetric analysis
Issue Date: Apr-2019
Publisher: NISCAIR-CSIR, India
Abstract: A series of mixed ligand lanthanide complexes of general formula [Ln(PhenQ)(L1-3) (NO3)2(H2O)n] [where n = 0, Ln = Yb(III); n = 1, Ln = Dy(III); and n = 2, Ln = Nd(III)] have been derived from 9,10-phenanthrenequinone (PhenQ) and Schiff bases (L1-3H) [where, L1H = (E)-2-methoxy-6-((thiazol-2-ylimino) methyl) phenol, L2H = (E)-4-(2-hydroxy-3-ethoxybenzylidineamino) benzoic acid and L3H = 2-((p-tolylimino) methyl) phenol] containing N, O donor atoms. These metal complexes have been characterized by elemental analysis, infrared, UV-Vis, Thermogravimetric analysis, Powder X-ray diffraction and ESI-Mass spectrometry. Surface morphology of the synthesized complexes has been analysed by SEM-EDX and they appear to have stone-like surface morphology (rough, with indefinite shape). The metal complexes of Nd and Dy have been found to be ten coordinated, whereas metal complex of Yb is found to be eight coordinated which has tentatively been proposed by spectroscopic techniques.
Page(s): 446-453
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections:IJC-A Vol.58A(04) [April 2019]

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