A naked-eye selective detection of cyanide ion: studies on the effect of chromophores and spacers on ditopic receptors.

نویسندگان

  • Vinod Kumar
  • Hemlata Rana
  • M P Kaushik
چکیده

A series of novel thiourea based receptors (1-12) with different signaling units and spacers have been synthesized for the detection of cyanide ion. Among these receptors, 4,4'-bis-[3-(4-cyanophenyl)thiourea]diphenyl sulfide 6 and 4,4'-bis-[3-(3-cyanophenyl)thiourea]diphenyl sulfide 9 exhibited selective detection of cyanide by the naked-eye as well as by UV-Vis spectroscopy. Furthermore, the chemosensor is insensitive to the presence of other environmentally relevant anions. The chromogenic transformation permits the detection of cyanide (TBA(+) and K(+) salts) in the natural environment.

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عنوان ژورنال:
  • The Analyst

دوره 136 9  شماره 

صفحات  -

تاریخ انتشار 2011