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∪ E =Diethyldithiocarbamate,2-Pyridinethiolateand2-Quinoline-thiolate =Deprotonated2-PhenylpyridineandS (phpy) (S ∪ E)Complexeswithphpy SynthesisandLuminescenceofRh

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Synthesis and Luminescence of Rh

III

(phpy)

2

(S E) Complexes with phpy

= Deprotonated 2-Phenylpyridine and S E

= Diethyldithiocarbamate, 2-Pyridinethiolate and 2-Quinoline- thiolate

Valeri Pawlowski*, Horst Kunkely, and Arnd Vogler Institut f¨ur Anorganische Chemie, Universit¨at Regensburg, D-93040 Regensburg, Germany

Reprint requests to Prof. Dr. A. Vogler.

E-mail: Arnd.Vogler@chemie.uniregensburg.de Z. Naturforsch. 60b, 359 – 362 (2005);

received November 11, 2004

Complexes of the general composition RhIII(phpy)2(SE) with phpy= 2-(2-pyridyl)phenyl and S∪E= diethyldithio- carbamate, 2-pyridinethiolate and 2-quinolinethiolate were prepared and characterized.

The complexes with S∪E= diethyldithiocarbamate and 2-pyridinethiolate show a low-temperature luminescence which originates from a phpyππintraligand triplet. For the complex with S∪E= 2-quinolinethiolate (or thiooxinate) the lowest-energy excited state is of the quinolinethiolate in- traligand type. This complex displays a fluorescence as well as a phosphorescence under ambient conditions.

Key words: Electronic Spectra, Luminescence, Rhodium Complexes, Thiolate Complexes

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