• Cyclic zinc organophosphate based expanded ditopic N,N-metalloligands

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    • Keywords


      Pyridyl terpyridine; metalloligands; halo functionalization; X-ray structures; spacer ligands

    • Abstract


      A new series of zinc phosphate based novel elongated ditopic N,N-metalloligands [Zn(Xdipp)(pyterpy)]2.2MeOH (X= H (1), Cl (2), Br (3), I (4)], exemplifying expanded 4,4-bipyridine spacer family, has been prepared by reacting 4-(4ꞋꞋ-pyridyl)-2,2:6,2ꞋꞋ-terpyridine (pyterpy), 2,6-iisopropylphenylphosphate (dippH2) or its para-halo functionalized derivatives X-dippH2 (X = Cl, Br, I) with Zn(OAc)2.2H2O in a mixture of solvents at room temperature. The formation of these metalloligands has been confirmed by their spectroscopic and analytical data. Solution and solid-state stability of these complexes have beenconfirmed by both mass spectroscopy and thermogravimetric analysis. The solid-state structures of 1–4 have further been established by single crystal X-ray diffraction studies, revealing that the N,N-distance in these systems can be expanded approximately to 23 A° , as against the 7 A° separation observed for 4,4-bipyridine.Compounds 2–4, which contain two pyridyl nitrogen centers and two C–X functionalities that are orthogonal to each other, could offer new possibilities in their use as metalloligand to build extended 2-D and 3-D solids

    • Author Affiliations



      1. Department of Chemistry, Indian Institute of Technology Bombay, Mumbai 400 076, India
    • Dates

  • Journal of Chemical Sciences | News

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