SYNTHESIS OF BIS[(4,10-DIAZA-4,10-DITOSYL-BENZO-12-CROWN-4) 4'-YL] DIAMINOGLYOXIME AND ITS COMPLEXES

Citation
U. Avciata et al., SYNTHESIS OF BIS[(4,10-DIAZA-4,10-DITOSYL-BENZO-12-CROWN-4) 4'-YL] DIAMINOGLYOXIME AND ITS COMPLEXES, Journal of inclusion phenomena and molecular recognition in chemistry, 26(1-3), 1996, pp. 27-38
Citations number
24
Categorie Soggetti
Chemistry,Crystallography
ISSN journal
09230750
Volume
26
Issue
1-3
Year of publication
1996
Pages
27 - 38
Database
ISI
SICI code
0923-0750(1996)26:1-3<27:SOB4D>2.0.ZU;2-O
Abstract
A new macrocyclic ligand (HL) has been synthesised by reaction of 4'-a mino-4, 10-diaza-4, 10-ditosyl-benzo-12-crown-4 with 1, 2-dichloroetha nedial-dioxime. Protonation constants of the ligand and overall format ion 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 formati on constants of the mononuclear complexes are U(VI)O-2 > Cu(II) > Ni(I I) = Co(II) > Cd(II).