Yazarlar

• Başoǧlu, Aysel(2)
• Ocak, Miraç(2)
• Ocak, Ümmühan(2)
• Parlayan, Semanur(2)
• Alp, Hakan(1)
• Bahadr, Zekeriyya(1)
• Başaran, Dilek(1)
• Kantekin, Halit(1)
• Çaǧlar, Yasemin(1)

• MakaleYalnız künye2011Scopus SJRQ1/r/bayburt/12628
  Azathia crown ethers carrying pyrene pendant as receptor molecules for metal sensor systems

  Ocak, Ümmühan; Ocak, Miraç; Parlayan, Semanur; Başoǧlu, Aysel; Çaǧlar, Yasemin; Bahadr, Zekeriyya

  A series of crown ethers carrying a pyrene group with nitrogensulfur donor atoms, that differ in having three, four and five sulfur atoms in the macrocycle was designed and synthesized by the reaction of the corresponding macrocyclic compound and 1-bromomethylpyrene. The influence of metal cations such as Mn 2+, Fe2+, Fe3+, Co2+, Ni 2+, Cu2+, Zn2+, Cd2+, Hg 2+, Pb2+ and Al3+ on the spectroscopic properties of the ligands was investigated in acetonitriledichloromethane (1:1) by means of absorption and emission spectrometry. Absorption spectra show isosbestic points in the spectrophotometric titration of Fe2+, Zn2+, Cu2+, Pb2+ and Hg2+. The results of spectrophotometric titration experiments disclosed the complexation compositions and complex stability constants of the novel ligands with Fe 2+, Zn2+, Cu2+, Pb2+ and Hg 2+ cations. The monoazatetrathia crown ether showed good sensitivity for Cu2+ with linearity in the range 5.0×10-72. 5×10-6 M and detection limit of 1.6×10-8 M.

  AtıfScopus9·WoS9·OpenAlex10

  İncele
• MakaleAçık Erişim2010Scopus SJRQ2/r/bayburt/14024
  Complexation of metal ions with the novel azathia crown ethers carrying anthracene pendant in acetonitrile-dichloromethane

  Ocak, Ümmühan; Ocak, Miraç; Başoǧlu, Aysel; Parlayan, Semanur; Başaran, Dilek; Alp, Hakan; Kantekin, Halit

  A series of crown ethers carrying an anthracene group with nitrogen-sulfur donor atom, which differ in having three, four and five sulfur atoms in the macrocycle was designed and synthesized by the reaction of the corresponding macrocyclic compound and 9-chloromethyl-anthracene. The influence of metal cations such as Al3+, Zn2+, Fe2+, Fe3+, Co2+, Ni2+, Mn2+, Cu2+, Cd2+, Hg2+ and Pb2+ on the spectroscopic properties of the ligands was investigated in acetonitrile-dichloromethane (1:1) by means of absorption and emission spectrometry. Absorption spectra show isosbestic points in the spectrophotometric titration of Al3+, Zn2+, Fe2+, Fe3+, Cu2+, Hg2+ and Pb2+ the results of which disclosed the complexation compositions and complex stability constants of the novel ligands with these cations. The monoazapentathia crown ether showed sensitivity for Al3+ with linear range and detection limit of 2.6 × 10-6 M-2.6 × 10-5 M and 8.1 × 10-7 M, respectively.

  AtıfScopus10·WoS9·OpenAlex10

  İncele