Premium
Anion‐Dependent Substitution of Zinc by Magnesium in Mononuclear Schiff Base Complexes
Author(s) -
Hermann Jolante,
Schumacher Dinah,
Erxleben Andrea
Publication year - 2002
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/1099-0682(200209)2002:9<2276::aid-ejic2276>3.0.co;2-b
Subject(s) - chemistry , schiff base , zinc , magnesium , methanol , medicinal chemistry , base (topology) , inorganic chemistry , glycine , substitution reaction , ion , substitution (logic) , nuclear chemistry , polymer chemistry , organic chemistry , amino acid , biochemistry , computer science , programming language , mathematical analysis , mathematics
The zinc and magnesium Schiff‐base complexes [ZnL(H 2 O)(NO 3 )]NO 3 ( 1 ) and [MgL(H 2 O) 3 ](NO 3 ) 2 ·H 2 O ( 2 ) (L = Schiff base derived from 4‐bromo‐2‐[(2‐diethylaminoethyl)ethylaminomethyl]‐6‐formylphenol and glycine) have been prepared and structurally characterized. The reaction of 1 with Mg 2+ has been studied in water, methanol and DMSO. Substitution of Zn by Mg 2+ was observed in DMSO and methanol and the amount of Mg complex formed was found to be strongly dependent on the nature and concentration of the anions in solution: Cl − and CH 3 CO 2 − mediate conversion of 1 into 2 , while ClO 4 − , NO 3 − , F − , Br − , I − and SO 4 2− are ineffective. (© Wiley‐VCH Verlag GmbH, 69451 Weinheim, Germany, 2002)