alexa Synthesis and Electrochemistry of Dimetallocene-Contain
ISSN: 2161-0398

Journal of Physical Chemistry & Biophysics
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Research Article

Synthesis and Electrochemistry of Dimetallocene-Containing Titanocenyl (IV) Complexes

E. Erasmus*
Department of Chemistry, University of the Free State, Bloemfontein, 9300, Republic of South Africa
Corresponding Author : Elizabeth Erasmus
Department of Chemistry
University of the Free State
Bloemfontein, 9300, Republic of South Africa
Tel: ++27-51-4019656
Fax: ++27-51-4446384
E-mail: [email protected]
Received June 25, 2014; Accepted July 25, 2014; Published July 27, 2014
Citation: Erasmus E (2014) Synthesis and Electrochemistry of Dimetallocene- Containing Titanocenyl (IV) Complexes. J Phys Chem Biophys 4:152 doi:10.4172/2161-0398.1000152
Copyright: © 2014 Erasmus E. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
 

Abstract

A series of dimetallocenyl dicyclopentadienyl titanium (IV) complexes of the from [(C5H5)2TiIV((C5H4)MII(C5H5))2] with M=Fe, Ru and Os were synthesized by treatment of dicyclopentadienyltitanium (IV) dichloride (titanocene dichloride) with the corresponding metallocenyllithium. The metallocenyllithium was obtained by treatment of the corresponding metallocene (ferrocene (Fc), ruthenocene (Rc) and osmocene (Oc)) with either t-buthyllithium or n-buthyllithium. The electrochemistry of the dimetallocenyl dicyclopentadienyl titanium (IV) complexes was studied by cyclic voltammetry, linear sweep voltammetry and Oster Young square wave voltammetry. The titanocenyl group showed quasi-reversible to irreversible electrochemistry with the peak anodic potential (Epc vs FcH/FcH+) of the titanocenyl group dependent on the atomic electronegativity of the metallocenyl ligand (Fe (cFe=1.64), Ru (cRu=1.42), Os (coeOs=1.52)). The metallocenyl groups (Fc, Rc and Oc) showed quasi-reversibility and the quasi-formal reduction potential, E01, was also dependent on atomic electronegativity of the metal of the metallocenyl ligand.

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