Cover : J. Porph. Phthalocyanines [CLAC]

Abstract :

The synthesis of a series of novel tetra-(benzo-24-crown-8)-phthalocyanines (Mg(II), Ni(II) and Co(II)) as well as a modified procedure for the free-base ligand and its Zn(II) and Cu(II) complexes are reported. The tendency of these phthalocyanines to undergo supramolecular cofacial dimerization induced by interaction with a viologen (N,N" role="presentation" id="MathJax-Element-1-Frame">𝑁,𝑁-di(but-3-ynyl)-4,4′" role="presentation" id="MathJax-Element-2-Frame">′-bipyridinium) was investigated by UV-vis absorption and EPR spectral studies in solution. The nature of the metal cation in phthalocyanine, the concentration, as well as the solvent all influenced the assembly processes.

Reference :

A. Safonova, J. A. Wytko, J. Weiss, E.A. Ugolkova, N. N. Efimov, V. V. Minin, Y. G. Gorbunova, A. Y. Tsivadze
Tetra-(benzo-24-crown-8)-phthalocyanines as a platform for supramolecular ensembles: Synthesis and interaction with viologen
J. Porph. Phthalocyanines, 2020, 24, 1083–1092, DOI - https://doi.org/10.1142/S1088424620500297

Contacts :

J. Weiss, J. A. Wytko, équipe CLAC, Institut de Chimie (UMR 7177).

 

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