Synthesis of bis[(4,10-diaza-4,10-ditosyl-benzo-12-crown-4) 4′-yl] diaminoglyoxime and its complexes

A new macrocyclic ligand (HL) has been synthesised by reaction of 4-amino-4,10-diaza-4,10-ditosyl-benzo-l2-crown-4 with 1,2-dichloroethanedial-dioxime. Protonation constants of the ligand and overall formation constants have been calculated from potentiometric data using the program TITFIT. Both amino and hydroxyimino groups provide donor atoms together with hydroxyl ions at higher pH values. The order of formation constants of the mononuclear complexes are U(VI)O₂>Cu(II)>Ni(II)=Co(II)>Cd(II).Presented at the Sixth International Seminar on Inclusion Compounds, Istanbul, Turkey, 27–31 August 1995.     

Hydrothermal in situ preparation of phthalocyanine–TiO2 nanocomposites for photocatalytic activity under visible light irradiation

Research on Chemical Intermediates - In this study, phthalocyanine (Pc)–TiO2 nanocomposites were prepared via in situ hydrothermal method. The metal-free, zinc(II), cobalt(II), nickel(II) and...