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Micellar effect on the photophysics of heteroleptic ruthenium(II)–phenanthrolinedisulfonato complexes
Author(s) -
Sangiliapillai Ramanathan,
Arumugam Ramdass,
Eswaran Rajkumar,
Seenivasan Rajagopal
Publication year - 2016
Publication title -
luminescence
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.428
H-Index - 45
eISSN - 1522-7243
pISSN - 1522-7235
DOI - 10.1002/bio.2917
Subject(s) - ruthenium , cationic polymerization , luminescence , quantum yield , micelle , chemistry , phenanthroline , micellar solutions , ligand (biochemistry) , homogeneous , photochemistry , coordination sphere , polymer chemistry , fluorescence , ion , inorganic chemistry , organic chemistry , materials science , catalysis , aqueous solution , receptor , biochemistry , physics , optoelectronics , quantum mechanics , thermodynamics
Luminescent heteroleptic ruthenium(II) complexes of type RuL n X 3– n [L = 1,10‐phenanthroline (phen), X = 4,7 diphenyl phenanthroline disulfonate, (dpsphen) n = 0,1,2,3] were synthesized and their photophysical properties investigated in homogeneous and cationic (CTAB), anionic (SDS) and nonionic (Triton X‐100) micelles. The luminescent quantum yield and lifetime of the complexes were found to increase in the presence of micellar media and on the introduction of a disulfonate ligand into the coordination sphere. Both electrostatic and hydrophobic interactions play an important role in the micellar media. Thus, by changing the nature of the ligands and the medium, we were able to tune the photophysical properties of Ru(II) complexes. Copyright © 2015 John Wiley & Sons, Ltd.