Investigation of Spectrophotometrical and Fluorescent Behavior of 1,3-Diethyl-5-(Quinoline-2-Ylmethylene)-2-Thioxodihydropyrimidine-4,6(1H,5H)-Dione in Various Solvents

  • Mevlüde Canlica
  • H. Kerim Beker
  • İbrahim E. ÖzyiğitEmail author
  • Alper Akinci
  • Şeniz Kaban

Heterocyclic compounds containing atoms of the elements such as nitrogen, sulfur and oxygen as ring members are commonly used in various fields of industry as analytical reagents, ligands, dyestuffs, pharmaceutical substances and bioindicators.

In this study 5-(Quinoline-2-ylidene)-1,3-diethyl-2-thiobarbituric acid have been synthesized via Knoevenagel condensation reaction, the product solutions were prepared 10 −3 − 10 −5 M in CHCI 3, THF, MeOH, DMF and DMSO. UV/VIS spectra recorded and then compared at each other. Absorbance of the solutions were measured at 200 – 300 nm. The maximum absorbance value increased and a new absorption appeared at 400 – 500 nm. The samples were excited at 337 nm in order to measure fluorescence. The maximum emission was observed in MeOH at 398 nm. These values increased by time; therefore, the samples were not stable in solution state.


Fluorescence Heterocyclic compound Knoevenagel condensation Spectroscopy Yildiz Technical University Science and Art Faculty Chemistry Department 34220 Esenler-Istanbul Turkey 


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Copyright information

© Springer Science + Business Media B.V 2009

Authors and Affiliations

  • Mevlüde Canlica
    • 1
  • H. Kerim Beker
    • 2
  • İbrahim E. Özyiğit
    • 3
    Email author
  • Alper Akinci
    • 4
  • Şeniz Kaban
    • 4
  1. 1.Ylldlz Technical UniversityFaculty of Arts and Sciences, Department of ChemistryTurkey
  2. 2.Ylldlz Technical UniversityFaculty of Arts and Sciences, Department of ChemistryTurkey
  3. 3.Universiti Sains MalaysiaSchool of Chemical SciencesMalaysia
  4. 4.Ylldlz Technical UniversityFaculty of Arts and Sciences, Department of ChemistryEsenler- I stanbulTurkey

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