Synthesis and Characterization of Cyclometalated Platinum Complexes Containing 2-Vinylpyridine Ligand

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Kamyar Khaledi, Niloufar | 2015

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 47614 (03)
University: Sharif University of Technology
Department: Chemistry
Advisor(s): Jamali, Sirous
Abstract:
The cyclometalated platinum(II) complex [Pt(Me)(bhq)(2-vpy)], 2, in which bhq = benzo{h}quinolone, 2-vpy = 2-vinylpyridine, has been prepared by reaction of the cyclometalated complex [Pt(Me) bhq)(SMe2)], 1 with one equiv 2-vinylpyridine. The similar complex [Pt(p-tolyl)(ppy)(2-vpy)], 3 in which ppy = 2-phenyl pyridine, has been prepared from reaction of the platinum(II) complex cis-[Pt(p-MeC6H4)2(SMe2)2] with one equiv 2-phenylpyridine and one equiv 2-vinylpyridine. Reaction of 2 with one equiv Br2 in acetone gave the cyclometalated platinum(IV) complex [Pt(bhq)Me(Br)(NC5H4CHCH2Br)], 4. The structure of the complexes 1-3 were determined using NMR Spectroscopy. The crystal structure of 3 further determined by X-ray crystallography.The platinum(II) hydride complex [PtH(CH3CN)(tBu3P)2]PF6, 5 has been prepared by the reaction of 2 equiv platinum(0) complex [Pt(tBu3P)2] with 3 equiv [Cu(CH3CN)4]PF6 in acetone. Reaction of 5 with one equiv 2-vinylpyridine monitored using 1H and 1P{1H} NMR spectroscopy. The spectra show that hydride ligand removed from the complex and activation
of the C-H of tBu groups take placed in product
Keywords:
Spectrometry ; Cyclometalated Complex ; Platinum ; 2-Vinylpyridine