All submissions of the EM system will be redirected to Online Manuscript Submission System. Authors are requested to submit articles directly to Online Manuscript Submission System of respective journal.

Abstract

Synthesis and Spectral Studies of Nickel (II) Complexes with 18-Membered Macrocyclic Ligand Derived from Malonodihydrazide and Diketones

Author(s): Raman Kumar, Kumari Anita and Kumari Upma Jain

18-Membered macrocyclic complexes of Ni (II) of the type [Ni(H2Cz)] have been synthesized and characterized on the basis of spectral, magnetic and conductivity studies. The macrocyclic ligands H4Cz are tetrabasic having four imido hydrogen but behave in a dibasic manner. Out of eight nitrogens, four are imido and four are imino. Ligands utilize four imido nitrogens for square planar coordination forming four 7 : 6 : 7 : 6 chelate rings giving rise to a 18 membered macrocyclic framework. Nickel (II), complexes having red color are diamagnetic. Low molar conductivity values in the range 7-12 ohm-1 cm2 mol-1 suggest complexes to be non-electrolytic in nature. High dilute conditions have been employed in the synthesis of macrocyclic complexes in order to dispense with polymerization reaction.


Share this       

Recommended Conferences