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Synthesis, Spectral, Electrochemical, Crystal Structure Studies of two Novel di-μ-halo-bis[halo(2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline)cadmium(II)] dimer Complexes and their Thermolysis to Nanometal Oxide

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Tue, 2015-08-04 13:35 — Mohammed Abdullah Al-Nuri
Journal Title, Volume, Page: 
Journal of Molecular Structure 1099 (2015) 323-329
Year of Publication: 
2015
Authors: 
Muneer Abdoh
Department of Physics, Faculty of Sciences, An-Najah National University, Nablus, Palestine
Ismail Warad
Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine
S. Naveen
Institution of Excellence, Vijnana Bhavan, University of Mysore, Manasagangotri, Mysore 570 006, India
Lokanath K Neratur
Department of Studies in Physics, University of Mysore, Manasagangotri, Mysore 570 006, India
Rachid Salghi
Laboratory of Environmental Engineering and Biotechnology, ENSA, Universit e Ibn Zohr, PO Box 1136, 80000 Agadir, Morocco
Mohammed A. Al-Nuri
Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine
Shehdeh Jodeh
Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine
Smaail Radi
Laboratoire de Chimie Appliquée et Environnement (LCAE), Faculté des Sciences, Université Mohamed I, 60 000 Oujda, Morocco
Belkheir Hammouti
Laboratoire de Chimie Appliquée et Environnement (LCAE), Faculté des Sciences, Université Mohamed I, 60 000 Oujda, Morocco
Preferred Abstract (Original): 

Two new neutral dimer Cadmium(II) complexes, [Cd2(dmdphphen)2X4] and where X = Cl (complex 1), Br (complex 2), and dmdphphen = 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline, were synthesized and characterized by an elemental analysis, UV-Vis, IR, TG/DTA, CV and single crystal X-ray diffraction. Complex 1 crystallizes in the triclinic system with the space group P-1 with unit cell parameters a = 10.1124(8) Å, b = 10.8875(8) Å, c = 11.5730(9) Å, α = 108.323(3)º, β = 107.010(3)º, γ = 91.260(3)º V = 1147.51(15) Å3 and Z = 1. The Cd(II) ions are located in a slightly distorted square-pyramidal geometry. The complexes exhibit a quasi-reversible one electron response at -570 mV vs. Cp2Fe/Cp2Fe+ , which has been assigned Cd(II)/Cd(III) couples. TG/DTA result shows that these complexes are very stable and decomposed through one step reaction. Calcination of Complex 1, revealed the formation of Cubic nanoparticle CdO.

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