Abstract
The title complex [Pd(Me2bqb)] (1), [Me2bqb2– = 1,2-bis(quinoline-2-carboxamide)-4,5-dimethyl-benzene dianion], has been synthesized and characterized by elemental analyses and spectroscopic methods, and the crystal and molecular structure of [Pd(Me2bqb)] has been determined by X-ray crystallography. The complex exhibits distorted square-planar PdN4 coordination geometry with two short and two long Pd–N bonds (Pd–N ~1.957 and ~2.095 Å, respectively). In addition to the molecular geometry from X-ray experiment, theoretical studies have been carried out on the structure of the complex at the density functional theory (DFT-B3LYP) level in conjunction with effective core potential basis set (LANL2DZ) for Pd atom and 6-311++G(d,p) basis set for N, O, C and H atoms. Electrochemical studies in CH2Cl2 solution revealed A reversible redox process corresponding to the PdII/PdIII couple with E 1/2 at 0.924 V (vs. SCE).
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Acknowledgments
Partial support of this work by the Isfahan University of Technology Research Council is gratefully acknowledged. Special thanks are also due to Professor Peter C. Ford for providing the SM and MA with the necessary instruments and CHN facilities through the National Science Foundation grant (NSF-CHE-0749524).
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M. Amirnasr is on sabbatical leave from the Department of Chemistry, Isfahan University of Technology, Isfahan, Iran.
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Supplementary crystallographic data for 1 can be obtained free of charge via http://www.ccdc.cam.ac.uk/conts/retrieving.html, or from the Cambridge Crystallographic Data Centre, 12 Union Road, Cambridge CB2 1EZ, UK; fax: (+44) 1223-336-033; or e-mail: deposit@ccdc.cam.ac.uk (TXT 22 kb)
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Meghdadi, S., Langer, V., Farrokhpour, H. et al. Synthesis, X-ray structure, electrochemistry, and theoretical studies of palladium(II) complex with a tetradentate bis(quinoline-2-carboxamide) ligand. J IRAN CHEM SOC 9, 85–92 (2012). https://doi.org/10.1007/s13738-011-0008-9
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DOI: https://doi.org/10.1007/s13738-011-0008-9