1233972-45-6Relevant articles and documents
Coordination assembly of p-substituted aryl azo imidazole complexes: Influences of electron donating substitution and counter ions
Pramanik, Avijit,Basu, Arghya,Das, Gopal
, p. 1980 - 1989 (2010/08/21)
The formation of a series of Cu(II), Zn(II) and Cd(II) complexes using the p-substituted aryl azo system has been reported. Presence of electron donating -Me, -OMe groups impart some unusual coordination behaviors in Cu(II) complexes. Varying coordination mode and electron density in the ligand results in the formation of an unusual Cu-S bond in complex 1 and an unusual equatorial coordination of H2O in Cu(II) complex 2 with a square-pyramidal geometry. The hydrogen bonding site along with the metal coordination site in the ligand results in the formation of higher dimensional self-assembled supramolecular architectures. Compatibility of the hard-soft nature of the metal ion and symbiosis effect of the ligand with metal is responsible for the formation of long range higher dimensional networks in the solid-state, which were confirmed by single crystal X-ray structure analysis. Furthermore, various physicochemical studies, viz. thermal behaviors, absorption spectra, electrochemistry and EPR studies, have been conducted to rationalize the structures in the solution phase.
