Acta Phys. -Chim. Sin. ›› 2008, Vol. 24 ›› Issue (07): 1313-1315.doi: 10.3866/PKU.WHXB20080733

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Optically Highly Selective Sensing of Fluoride Ion by N3 Dye

YANG Wei-Chun; FAN Su-Hua; WANG Ke-Zhi   

  1. College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China; College of Chemistry and Chemical Engineering, Pingdingshan University, Pingdingshan 467002, Henan Province, P. R. China
  • Received:2008-03-11 Revised:2008-03-21 Published:2008-07-04
  • Contact: WANG Ke-Zhi E-mail:kzwang@bnu.edu.cn

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Abstract: The N3 dye, cis-Ru(H2dcbpy)2(NCS)2 (H2dcbpy=4,4’-dicarboxy-2,2’-bipyridyl), was demonstrated to be a highly selective luminescent and ratiocolorimetric sensors towards fluoride ion over chloride and bromide ions, by means of UV-Vis absorption and emission spectrophotometric titration method in dimethyl sulfoxide(DMSO) solution. Alarge“turn on”emission enhancement factor of 40, observed by the interaction of the N3 with fluoride ion was rather rare among the rutheniumcomplex-based fluoride ion sensors reported to date.

Key words: Ruthenium, Bipyridine, Fluoride ion, Fluorescent sensing, Fluorescence spectrum