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Frontispiece: Optical Sensing of Anions via Supramolecular Recognition with Biimidazole Complexes
Author(s) -
Rommel Sebastian A.,
Sorsche Dieter,
Fleischmann Maximilian,
Rau Sven
Publication year - 2017
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201787262
Subject(s) - ruthenium , supramolecular chemistry , osmium , phosphorescence , iridium , molecular recognition , luminescence , combinatorial chemistry , chemistry , metal ions in aqueous solution , coordination complex , nanotechnology , metal , materials science , molecule , catalysis , organic chemistry , fluorescence , optoelectronics , physics , quantum mechanics
Phosphorescent metal complexes with peripheral N‐H donor functionalities have attracted great attention as potential molecular sensing units for anionic species lately. In this contribution we discuss the development and potential of anion recognition and sensing features of recent examples of luminescent 2,2′‐biimidazole complexes of ruthenium(II), iridium(III), osmium(II) and cobalt(III). The general dependency of photophysical features in these complexes regarding the acid‐base chemistry of the peripheral N‐H functionalities will be outlined as a basic requirement for optical ion recognition. Systematic strategies for the tuning and specific improvement by synthetic means will be discussed regarding recent reports. For more details, see the Review by S. Rau et al. on page 18101 ff.