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Copper (II) ion-sensing mechanism of oligo-phenylene vinylene derivatives: syntheses and theoretical calculations

P Tongkate, D Phromyothin, J Sumranjit

Index: Tongkate, Pratoomrat; Phromyothin, Darinee; Sumranjit, Jitapa Tetrahedron, 2012 , vol. 68, # 16 p. 3329 - 3335

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Citation Number: 4

Abstract

Oligo-phenylene vinylene (oligo-PV) with two picolinamide side-groups and six methoxy end-groups was synthesized in order to be a fluorescent sensing molecule. Various metal ion solutions (1.5× 10− 4 M) were added to the 1.5× 10− 6 M acetonitrile solution of the fluorescent molecule. The fluorescent emission spectra showed that, at about the same concentration (1.5× 10− 4 M), only Cu (II) ion can quench the fluorescent emission of the ...