Abstract
A new double end-on azide-bridged dinuclear nickel(II) Schiff base complex, [Ni2(μ1,1-N3)2(HL)2(MeOH)2], [HL = 2–[(2–hydroxypropylimino)methyl)–3,5–chlorophenol] has been synthesized and characterized by elemental analysis, UV and IR spectroscopy, single crystal X-ray diffraction, magnetic and photoluminescence study. The asymmetric unit contains half of the dinuclear unit. The Ni(HL) units in each dinuclear molecule are connected to each other by two bridging end-on azide ligands. In the crystalline architecture of the Ni(II) complex, intermolecular OH⋯N hydrogen bonds link the molecules which form one-dimensional structure. Additionally, low temperature magnetic measurements indicate a dominant intradimer ferromagnetic interactions in double end-on azide-bridged dinuclear Ni(II) complex. Room temperature solid state photoluminescence measurements of Ni(II) complex show strong green emission band at λmax = 508 nm while its free ligand H2L shows broad yellow emission band at λmax = 594 nm. The luminescent performances making Ni(II) complex may be good candidates for potential luminescence materials.
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