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Kinetics of base hydrolysis of novel low spin Fe(II) amino acid Schiff base chelates—hydrophobic structural effects
Author(s) -
Shaker Ali M.,
Nassr Lobna A. E.
Publication year - 2002
Publication title -
international journal of chemical kinetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.341
H-Index - 68
eISSN - 1097-4601
pISSN - 0538-8066
DOI - 10.1002/kin.10086
Subject(s) - chemistry , salicylaldehyde , schiff base , hydrolysis , kinetics , reaction rate constant , reactivity (psychology) , aqueous solution , chelation , base (topology) , aldehyde , polymer chemistry , medicinal chemistry , inorganic chemistry , organic chemistry , catalysis , medicine , mathematical analysis , physics , alternative medicine , mathematics , pathology , quantum mechanics
The reactivity against OH − ion of some novel Fe(II) complexes of Schiff base ligands derived from salicylaldehyde or o ‐hydroxynaphth‐aldehyde and some variety of amino acids has been examined in aqueous and aqua‐ethanol mixtures. The rate law and relevant mechanism were assumed. Base hydrolysis kinetics measurements revealed pseudo‐first‐order doubly stage rates because of the presence of mer‐ and fac‐isomers. The evaluated rate constants and activation parameters are consistent with the stability constants of the investigated complexes. © 2002 Wiley Periodicals, Inc. Int J Chem Kinet 34: 595–602, 2002