Synthesis and characterization of regioselective substituted tetrapyridophenazine ligands and their Ru(II) complexes
Karnahl M, Tschierlei S, Kuhnt C, Dietzek B, Schmitt M, Popp J, Schwalbe M, Krieck S, Goerls H, Heinemann FW, Rau S (2010)
Publication Status: Published
Publication Type: Journal article
Publication year: 2010
Journal
Publisher: ROYAL SOC CHEMISTRY
Book Volume: 39
Pages Range: 2359-2370
Journal Issue: 9
DOI: 10.1039/b917484b
Abstract
A series of novel regioselective substituted tpphz ligands and two novel mononuclear ruthenium complexes of the type [(tbbpy)(2)Ru(tpphzRn)](PF(6))(2) (where tbbpy = 4,4'-di-tert.-butyl-2,2'-bipyridine, tpphz = tetrapyrido[3,2-a:2',3'-c:3 '',2 ''-h:2''',3'''-j]phenazine, with n = 2 and R represents the bromine substituents at different positions) have been synthesized. All compounds were completely characterized by NMR and MS spectroscopy, absorption and steady-state emission spectroscopy as well as emission lifetime and electrochemical measurements. Additionally the solid-state structures of the two isomers [(tbbpy)(2)Ru(Br(2)tpphz)](PF(6))(2) 6 and [(tbbpy)(2)Ru(tpphzBr(2))](PF(6))(2) 7 are presented and compared with the results of density-functional theory calculations (DFT). Furthermore calculated Raman spectra were obtained by means of DFT calculations and used to assign the vibrational modes of the measured off resonance Raman spectra. A clear influence caused by the electronic effects of the different type and position of the substituents of tpphz on the photophysical behavior was observed.
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APA:
Karnahl, M., Tschierlei, S., Kuhnt, C., Dietzek, B., Schmitt, M., Popp, J.,... Rau, S. (2010). Synthesis and characterization of regioselective substituted tetrapyridophenazine ligands and their Ru(II) complexes. Dalton Transactions, 39(9), 2359-2370. https://doi.org/10.1039/b917484b
MLA:
Karnahl, Michael, et al. "Synthesis and characterization of regioselective substituted tetrapyridophenazine ligands and their Ru(II) complexes." Dalton Transactions 39.9 (2010): 2359-2370.
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