Coordination Chemistry of Functionalized Mercaptoimidazoles
Author | : Jonathon Andrew Maner |
Publisher | : |
Total Pages | : 168 |
Release | : 2011 |
Genre | : |
ISBN | : |
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The coordination chemistry of three mixed-donor ligands mebMe, mmteMe, and mteSimMe has been developed. Each ligand contains a mercaptoimidazole group and a pendant group containing a different potential donor. Thus methyl-mercaptoimidazolyl ethyl benzene (mebMe) is a mixed-donor containing mercaptoimidazole and an arene donor group separated by two carbons. Similarly, methyl-mercaptoimidazolyl (methylthio)ethane (mmteMe) is a mixed-donor containing mercaptoimidazole and thioether donor groups, and (methylthio)ethyl methyl-mercaptoimidazolyl sulfide (mteSimMe) contains imine and thioether donor groups. Previously, the Rabinovich group has investigated the chemistry of toxic metals such as Cd(II), Hg(II), and Pb(II) using the 6w(mercaptoimidazolyl)xylene (BmxR) and Z>/.s(mercaptoirnidazolyl)methane (BmmR) ligands. Both of these systems are bidentate 6/s(thione) ligands that bind metals to form tetrahedral and octahedral structures. As an extension of this work, the coordination chemistry of mebMe, mmteMe, and mteSimMe has been explored using the same heavy metals. A study of the reactivity of mebMe towards Pb(II) ions, the reactivity of mmteMe towards Hg(II) ions, and the reactivity of mteSimMe towards Hg(II) and Cd(II) ions has been performed.