Kinetics and thermodynamics of the reaction of iminodiacetate copper(II) complexes with 1,10- phenanthroline and 2,2‘-bipyridine in aqueous, anionic, cationic and nonionic surfactants solutions

Joanna Drzeżdżon , Agnieszka Piotrowska , Dariusz Wyrzykowski , Aleksandra Tesmar , Lech Chmurzyński , Dagmara Jacewicz

Abstract

The kinetics and thermodynamics have been studied for the reactions of the copper(II) complexes with iminodiacetate (ida), 2,2′-bipyridine (bipy) and 1,10-phenanthroline (phen) as ligands. The kinetics of substitution reactions of two aqua ligands for bipy and phen in the [Cu(ida)(H2O)2] coordination compound has been studied in water and three type of aqueous solutions of the following surfactants: anionic sodium dodecyl sulfate (SDS), cationic hexadecyl trimethyl-ammonium bromide (CTAB) and nonionic t-octylphenoxypolyetoxyethanol (Triton X-100). The progress of the substitution reactions in the studied solutions was monitored spectrophotometrically using the stopped-flow method. The studies have allowed the determination of the effect of the type of surfactant solutions on the rate of the substitution reaction. Moreover, the order of studied reactions has been determined. The research performed has also allowed us to propose the reaction mechanism of the [Cu(ida)(H2O)2] binary complex with chelate ligands (bipy or phen). In addition, the thermodynamic stability of complexes under study in aqueous solutions has been examined using the potentiometric titration method. Moreover, the potential scavenging activity of the copper(II) complexes has been investigated towards the superoxide radical.
Author Joanna Drzeżdżon PFZK
Joanna Drzeżdżon,,
- Laboratory of Physicochemistry of Coordination Complexes
, Agnieszka Piotrowska PFZK
Agnieszka Piotrowska,,
- Laboratory of Physicochemistry of Coordination Complexes
, Dariusz Wyrzykowski PBChN
Dariusz Wyrzykowski,,
- Pracownia Biologicznej Chemii Nieorganicznej
, Aleksandra Tesmar PFZK
Aleksandra Tesmar,,
- Laboratory of Physicochemistry of Coordination Complexes
, Lech Chmurzyński PFZK
Lech Chmurzyński,,
- Laboratory of Physicochemistry of Coordination Complexes
, Dagmara Jacewicz PFZK
Dagmara Jacewicz,,
- Laboratory of Physicochemistry of Coordination Complexes
Journal seriesReaction Kinetics Mechanisms and Catalysis, ISSN 1878-5190
Issue year2017
Vol122
No2
Pages729-740
Publication size in sheets0.55
Keywords in Englishcopper(II) complexes, kinetics, effect of micelle, surfactants, radical scavengers
DOIDOI:10.1007/s11144-017-1269-9
URL https://link.springer.com/content/pdf/10.1007%2Fs11144-017-1269-9.pdf
Languageen angielski
Score (nominal)15
ScoreMinisterial score = 15.0, 20-12-2017, ArticleFromJournal
Ministerial score (2013-2016) = 15.0, 20-12-2017, ArticleFromJournal
Publication indicators WoS Impact Factor: 2016 = 1.264 (2) - 2016=1.143 (5)
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