Organoplatinum(IV) tris-chelate complexes, each having a cyclic metallacarbonate ring: synthesis, characterization and kinetic studies of the formation

Dalton Transactions : an International Journal of Inorganic Chemistry
Mehdi RashidiS Masoud Nabavizadeh

Abstract

The complexes [Pt[(CH2)4](NN)], 1a (NN = 2,2'-bipyridine) and 1b (NN = 1,10-phenanthroline) react with 2,3-epoxypropylphenyl ether in the presence of CO2 to give tris-chelate platina(IV)cyclopentane complexes characterized by 1H and 13C NMR spectroscopy as [Pt[(CH2)4](CH2CHCH2OPhOCO2)(NN)], 2. The reactions proceed by the SN2 mechanism and the rates were independent of concentration of CO2. It is demonstrated that for 1a, the reaction proceeds 2.32 times faster than the similar reaction in which the dimethyl analog, [PtMe2(2,2'-bipyridine)], is used. The analog tris-chelate complex [Pt[(CH2)4](CH2CHPhOCO2)(phen)], 3a, was similarly synthesized.

Citations

May 8, 2008·Dalton Transactions : an International Journal of Inorganic Chemistry·S Masoud NabavizadehKeyamars Eskandari
Jul 29, 2010·Dalton Transactions : an International Journal of Inorganic Chemistry·S Masoud NabavizadehMehdi Rashidi

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