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Synthesis, crystal structure and photoluminescence of [Rh(III)(phpy)2(dithiooxamide)]Cl (phpy = 2-(2-pyridyl)phenyl)

Vogler, Arnd ; Bodensteiner, Michael



Abstract

The salt [Rh(III)(phpy)(2) (dtoxa)](C)l with phpy = 2-(2-pyridyl)phenyl anion and dtoxa = dithiooxamide has been characterized by its crystal structure and its electronic spectra. Since Rh(III) is rather redox-inert, the lowest-energy excited state of the complex cation is of the IL (dtoxa) type. In the solid state as well as in solution the complex is luminescent and displays a dtoxa IL phosphorescence at lambda(max) = 607 nm with phi = 10(-3) and tau = 3.7 ns in CH2Cl2.


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