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Palladium and platinum complexes of 2-(2′-carboxyphenylazo)-4-methylphenol: Synthesis, structure and spectral properties

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Abstract

Reaction of 2-(2′-carboxyphenylazo)-4-methylphenol (H2L) with [M(PPh3)2Cl2] (M = Pd, Pt) affords mixed-ligand complexes of type [M(PPh3)(L)]. Structures of both the complexes have been determined by X-ray crystallography. Both the complexes are square planar, where the 2-(2′-carboxyphenylazo)-4-methylphenol is coordinated to the metal center, via dissociation of the two acidic protons, as a dianionic tridentate O,N,O-donor, and the fourth position is occupied by the triphenylphosphine. These complexes show intense MLCT transitions in the visible region.

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Authors and Affiliations

  1. Department of Chemistry, Inorganic Chemistry Section, Jadavpur University, Kolkata, 700 032, India

    Sarmistha Halder & Samaresh Bhattacharya

  2. Department of Chemistry, University of Reading, Whiteknights, Reading, RG6 6AD, UK

    Michael G. B. Drew

Authors
  1. Sarmistha Halder
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  2. Michael G. B. Drew
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  3. Samaresh Bhattacharya
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Correspondence to Samaresh Bhattacharya.

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Halder, S., Drew, M.G.B. & Bhattacharya, S. Palladium and platinum complexes of 2-(2′-carboxyphenylazo)-4-methylphenol: Synthesis, structure and spectral properties. J Chem Sci 120, 441–446 (2008). https://doi.org/10.1007/s12039-008-0069-1

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  • DOI: https://doi.org/10.1007/s12039-008-0069-1

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