Spectral characterization of a newly synthesized fluorescent semicarbazone derivative and its usage as a selective fiber optic sensor for copper(II)

Oter Ö., ERTEKİN K., Kirilmis C., Koca M.

ANALYTICA CHIMICA ACTA, vol.584, no.2, pp.308-314, 2007 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 584 Issue: 2
  • Publication Date: 2007
  • Doi Number: 10.1016/j.aca.2006.11.052
  • Journal Name: ANALYTICA CHIMICA ACTA
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.308-314
  • Keywords: semicarbazone derivative, copper sensor, fluorescence spectroscopy, MEMBRANE
  • Dokuz Eylül University Affiliated: Yes

Abstract

In this work photoluminescent properties of highly Cu2+ selective organic fluoroionophore, semicarbazone derivative; bis(naphtho[2,1-b]furan-2-yl)methanone semicarbazone (BNF) was investigated in different solvents (dichloromethane, tetrahydrofuran, toluene and ethanol) and in polymer matrices of polyvinylchloride (PVC) and ethyl cellulose (EC) by absorption and emission spectrometry. The BNF derivative displayed enhanced fluorescence emission quantum yield, Q(f) = 6.1 x 10(-2) and molar extinction coefficient, epsilon = 29,000 +/- 65 cm(-1) M-1 in immobilized PVC matrix, compared to 2.6 x 10(-3) and 24,573 115 in ethanol solution.