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A New Indicator for Potassium Ions at Physiological pH by Using a Macrocyclic Luminescent Metal Complex
Author(s) -
Yan Xi,
Lv Shasha,
Guo Rong
Publication year - 2013
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201202925
Subject(s) - luminescence , terbium , energy transfer , computer science , chemistry , metal , nanotechnology , materials science , chemical physics , optoelectronics , organic chemistry
Anyone for a π‐type sandwich? A luminescent indicator was developed based on the potassium‐binding‐induced conformational change of a macrocyclic terbium complex. The indicator adopts a random coil conformation in the absence of K + . In the presence of K + , it forms a π‐type sandwich complex with the arene, resulting in an effective energy transfer and strong luminescence (see figure).