Novel tetranuclear Ni(II) Schiff base complex containing Ni4O4 cubane core: Synthesis, X-ray structure, spectra and magnetic properties

作者：Jana Mahendra Sekhar; Priego Jose L; Jimenez Aparicio Reyes^*; Mondal Tapan Kumar

来源：Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy , 2014, 133: 714-719.

DOI：10.1016/j.saa.2014.06.032

• Tetranuclear Ni(II) complex with Ni4O4 cubane core
• X-ray structure
• Absorption and emission spectra
• Magnetic properties

Novel tetranuclear nickel(II) Schiff base complex having symmetric Ni4O4 cubane-core, [Ni4O2(OAc)(2)(L)(2)] (1) has been synthesized. Single crystal of the complex exhibits four nickel atoms in the alternate corner of the cubane and other four sites are occupied by phenolate-O and mu 3-O2-. Variable temperature magnetic moment data suggests the Ni centres are weakly antiferromagnetically coupled with J(1) = -4.82 cm(-1) and J(2) = -4.83 cm(-1). The electronic spectra, emission properties and life time measurement of ligand, HL and complex 1 have been studied.

• 出版日期2014-12-10