The stabilities and formation kinetics of some macrocycles with copper(II): crystal structures of some pendant arm macrocycles

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dc.authoridOzay, Hava/0000-0002-4184-7801
dc.contributor.authorOzay, Hava
dc.contributor.authorBaran, Yakup
dc.contributor.authorMiyamae, Hiroshi
dc.date.accessioned2025-01-27T20:22:32Z
dc.date.available2025-01-27T20:22:32Z
dc.date.issued2011
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractKinetics of complex formation and stability constants of tetra-(2-hydroxpropyl) substituted cyclam (L-3) and cyclen (L-4) with copper(II) have been studied in aqueous solution at room temperature. These data are compared to the corresponding parent compounds (cyclam L-1 and cyclen L-2) in an attempt to define the effect of pendant arm upon kinetics and stability constants of the complexes. The kinetics were observed by stopped-flow measurements followed at multiwavelengths. These ligands were chosen to furnish information concerning effect of pendant groups and cavity size on the kinetics and stability of the complexes. Stopped-flow and spectrophotometric titration techniques were used for evaluation of the kinetics and stability constants, respectively. The apparent rate constants increase as CuL3 > CuL4 > CuL1 > CuL2. Activation parameters and stability constants of the complexes were estimated. The effect of cavity size on the rate of reaction can be observed in CuL3 > CuL4 and CuL1 > CuL2 and the effect of pendant groups in CuL3 > CuL1 and CuL4 > CuL2. Mechanism of the complex formation reaction is proposed. The enhanced stability of the copper(II) complexes formed with L-1 and L-2 macrocyclic ligands is compared to those formed with analogous pendant arm species.
dc.description.sponsorshipScientific and Technological Research Council of Turkeys [104T389]
dc.description.sponsorshipFinancial support is received from the Scientific and Technological Research Council of Turkeys research program 1001. Grant for 104T389 is gratefully acknowledged.
dc.identifier.doi10.1080/00958972.2011.574128
dc.identifier.endpage1480
dc.identifier.issn0095-8972
dc.identifier.issn1029-0389
dc.identifier.issue8
dc.identifier.scopus2-s2.0-84891920176
dc.identifier.scopusqualityQ3
dc.identifier.startpage1469
dc.identifier.urihttps://doi.org/10.1080/00958972.2011.574128
dc.identifier.urihttps://hdl.handle.net/20.500.12428/21939
dc.identifier.volume64
dc.identifier.wosWOS:000290405600001
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherTaylor & Francis Ltd
dc.relation.ispartofJournal of Coordination Chemistry
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subjectKinetics
dc.subjectStability
dc.subjectPendant arm
dc.subjectCavity size
dc.subjectStopped-flow
dc.subjectSpectroscopic titration
dc.titleThe stabilities and formation kinetics of some macrocycles with copper(II): crystal structures of some pendant arm macrocycles
dc.typeArticle

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