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Organometallic chiral Schiff base for enantio-selective fluorescent recognition of methionine

Asuman Ucar, Mukerrem Findik, Haluk Bingol, Ersin Guler, and Emine Ozcan

Department of Science Education, Education Faculty, Agri İbrahim Cecen University, Agri, Turkey

 

E-mail: asucar340@gmail.com

Abstract: Herein, the synthesis and characterization of a novel chiral Schiff bases derived from ferrocene, coded as 3, have been reported. The sensing behavior of the synthesized compound has been examined towards the enantiomers of some amino acids (methionine, alanine, serine, histidine, and threonine) by spectrofluorimetric method. The fluorescence response of compound 3 showed noticeable enhancement upon addition of d-methionine compared to l-methionine and kept nearly linear correlation with the concentration of d-methionine. The value of enantiomeric fluorescence difference ratio (ef) has been determined to be 1.54 when d- and l- methionine amount is 100 times more than compound 3. The results showed that the compound 3 can be used as a sensor for enantio-selective recognition of d-methionine.

Keywords: Schiff base; Amino acid methylester; Ferrocene; Fluorescence sensor; Chiral sensor; Molecular recognition

Full paper is available at www.springerlink.com.

DOI: 10.1007/s11696-017-0179-7

 

Chemical Papers 71 (10) 1855–1862 (2017)

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