Electrochemistry of Acetate-, Carbonate-, Sulfate-, and Dihydrogenphosphate-Bridged Dirhodium(ii) Complexes

dc.authorscopusid 36840873700
dc.authorscopusid 7004825485
dc.authorscopusid 6603198547
dc.contributor.author Yaman,Ş.Ö.
dc.contributor.author Önal,A.M.
dc.contributor.author Isci,H.
dc.contributor.other Chemical Engineering
dc.date.accessioned 2024-07-05T15:41:56Z
dc.date.available 2024-07-05T15:41:56Z
dc.date.issued 2003
dc.department Atılım University en_US
dc.department-temp Yaman Ş.Ö., Faculty of Engineering, Atilim University, 06836 Ankara, Turkey; Önal A.M., Department of Chemistry, Middle East Technical University, 06531 Ankara, Turkey; Isci H., Department of Chemistry, Middle East Technical University, 06531 Ankara, Turkey en_US
dc.description.abstract Complexes, [Rh2(B-B)4L2]n (B-B = CH3CO2-, L = CH3CN, H2O, Cl-, Br-, SCN-; B-B = CO32-, SO42-, H2PO4-, L = H2O, Cl-, Br-, SCN-) were prepared and their cyclic voltammograms (CV) and electronic absorption spectra were measured in solution. The CV of the complexes exhibits a reversible one-electron transfer from a metal-based orbital. Constant potential electrolysis at the oxidation peak potential of [Rh2 (O2CCH3)4 (NCCH3)2] in acetonitrile yielded [Rh2 (O2CCH3)4 (NCCH3)2]+, a mixed valent Rh(II)-Rh(III) cation complex. The formation of the mixed valent complex was monitored by measuring electronic absorption spectra of the solution in situ during the oxidative electrolysis. The reductive electrolysis of the mixed valent complex solution, in the same electrolysis cell, yielded the original electronic absorption spectrum of the starting complex. The changes in the oxidation and reduction potentials of the complexes with different axial ligands, L = H2O, Cl-, Br-, SCN-, are correlated to the relative energy changes of HOMO and LUMO of the complexes, which indicates the metal-axial ligand σ- and π-bonding interactions. Spectroscopic and CV data indicate that the degree of σ-interaction is Cl- > Br- > SCN-, and that of π-interaction is Br- > SCN- > Cl-. en_US
dc.description.sponsorship Türkiye Bilimsel ve Teknolojik Araştirma Kurumu, TÜBITAK, (TBAG-2025); Middle East Technical University Research Fund en_US
dc.identifier.citationcount 2
dc.identifier.doi 10.1515/znb-2003-0612
dc.identifier.endpage 570 en_US
dc.identifier.issn 0932-0776
dc.identifier.issue 6 en_US
dc.identifier.scopus 2-s2.0-0042744747
dc.identifier.scopusquality Q3
dc.identifier.startpage 563 en_US
dc.identifier.uri https://doi.org/10.1515/znb-2003-0612
dc.identifier.volume 58 en_US
dc.identifier.wosquality Q4
dc.institutionauthor Özalp Yaman, Şeniz
dc.language.iso en en_US
dc.publisher Verlag der Zeitschrift fur Naturforschung en_US
dc.relation.ispartof Zeitschrift fur Naturforschung - Section B Journal of Chemical Sciences en_US
dc.relation.publicationcategory Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı en_US
dc.rights info:eu-repo/semantics/closedAccess en_US
dc.scopus.citedbyCount 2
dc.subject Cyclic Voltammetry en_US
dc.subject Dirhodium(II) Complexes en_US
dc.subject Spectroelectrochemistry en_US
dc.title Electrochemistry of Acetate-, Carbonate-, Sulfate-, and Dihydrogenphosphate-Bridged Dirhodium(ii) Complexes en_US
dc.type Article en_US
dspace.entity.type Publication
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relation.isOrgUnitOfPublication.latestForDiscovery bebae599-17cc-4f0b-997b-a4164a19b94b

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