Synthesis and spectral characterization of macrocyclic Ni-II complexes derived from various diamines, Ni-II perchlorate and 1,4-bis(2-carboxyaldehydephenoxy)butane


Ilhan S., Temel H. , Kilic A., Tas E.

TRANSITION METAL CHEMISTRY, vol.32, no.8, pp.1012-1017, 2007 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 32 Issue: 8
  • Publication Date: 2007
  • Doi Number: 10.1007/s11243-007-0260-0
  • Title of Journal : TRANSITION METAL CHEMISTRY
  • Page Numbers: pp.1012-1017

Abstract

Six new macrocyclic complexes were synthesized by reaction of 1,4-bis(2-carboxyaldehyde phenoxy)butane with various diamines. Then, their nickel(II) perchlorate complexes were synthesized by the template effect by reaction of 1,4-bis(2-carboxyaldehyde phenoxy)butane, Ni(ClO4)(2) center dot 6H(2)O and various diamines. The metal-to-ligand ratio of Ni-II metal complexes was found to be 1:1. The compounds are coordinated to the central metal as tetradentate O2N2 ligands The Ni-II complexes are proposed to exhibit tetrahedral geometry. Ni-II metal complexes are 1:2 electrolytes as shown by their molar conductivities (Lambda(M)) in DMF (dimethyl formamide) at 10(-3) M. The structure of Ni-II metal complexes is proposed from elemental analysis, f.t.-i.r., u.v.-vis., magnetic susceptibility measurements, molar conductivity measurements and mass spectra.