Spectral characterization and theoretical interpretation of a new bis-µ- phenoxo-bridged heterodinuclear nickel(II)-sodium(I) complex

Department of Chemistry and Environment, Heritage Institute of Technology, Kolkata-700 107, India

E-mail : samiranju92@gmail.com, samiran.mitra@heritageit.edu

Department of Chemistry, West Bengal State University, Kolkata-700 126, India

Instituto de Ciencia Molecular (ICMol), C/ José Beltrán Martinez nº 2, 46980 Paterna, Valencia, Spain

Departament de Química, Universitat de les Illes Balears, Crta. de Valldemossa km 7.5,

07122 Palma de Mallorca (Baleares), Spain

Manuscript received 02 November 2016, revised 16 February 2017, accepted 28 February 2017

Doubly phenoxo bridged heterometallic dinuclear Ni(II)-Na(I) complex [NiNaL(ClO₄ )(CH₃OH)], 1 (H₂L = [(OCH₃ )C₆H₃ (OH)CH=N(CH₂CH)(CH₃ )N=CH(OH)C₆H₃ (OCH₃ )] has been synthesised and characterized by infrared, electronic spectra, electrochemistry and single crystal X-ray diffraction study. In complex 1, Ni(II) centre is distorted square-planar while the sodium(I) centre possesses pentagonal bipyramidal geometry. In the dimeric unit, the nickel and sodium atoms are held together by two distinct µ₂ -phenoxo oxygen of the Schiff base ligand. The Ni-Na distance is 3.354(2) Å and the Ni-O-Na angles are found to be 107.4(5)º and 108.2(4)º. Density functional theory (DFT) calculation results for the complex 1 are also reported and compared with the experimental data.