Preliminary Complexation Studies of Bis-(8-Hydroxyquinoline)-substituted Tetraaza-15-crown-5 with Various Metal Ions

Autor:	Xian X. Zhang, Paul B. Savage, Reed M. Izatt, Jerald S. Bradshaw, R. T. Bronson
Rok vydání:	1999
Předmět:	chemistry.chemical_compound Aqueous solution Absorption spectroscopy chemistry 15-Crown-5 Ligand Metal ions in aqueous solution Inorganic chemistry Qualitative inorganic analysis 8-Hydroxyquinoline Buffer solution Nuclear chemistry
DOI:	10.21236/ada361705
Popis:	Complexation of bis(8-hydroxyquinoline)-substituted tetraaza-15-crown-5 with Cu(2+), Co(2+), Ni(2+), Zn(2+), Cd(2+), and Pb(2+) was evaluated potentiometrically in aqueous solution (0.10 M Me4NCl) at 25 deg C. Ligand 1 formed very stable complexes with these metal ions. The UV-Vis spectra of ligand 1 and its complexes were examined in an aqueous acetic acid buffer solution (pH 4.7). The 1-Cu(2+) complex provided a new absorption band at 258 nm.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f4e37cb2a97d23e672e1393227e065ef https://doi.org/10.21236/ada361705 Zobrazit plný text záznamu