Design and synthesis of rhodamine based chemosensors for the detection of Fe 3+ ions

NR Chereddy, K Suman, PS Korrapati, S Thennarasu…

Index: Chereddy, Narendra Reddy; Suman, Koorathota; Thennarasu, Sathiah; Korrapati, Purna Sai; Mandal, Asit Baran Dyes and Pigments, 2012 , vol. 95, # 3 p. 606 - 613,8

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Citation Number: 56

Abstract

The number and nature of coordinating entities as well as the size of chelating cavity in rhodamine based chemosensors were tuned to enhance the selectivity and sensitivity for Fe3+ ions. An intense pink color development and enhancement in fluorescence emission intensity of chemosensor 5 upon complex formation at pH 7· 4 enabled the detection of Fe3+ ions in the presence of other competitive metal ions like Li+, Na+, K+, Cs+, Mg2+, Ca2+, ...