Imaging Science and Photochemistry ›› 2000, Vol. 18 ›› Issue (3): 223-228.DOI: 10.7517/j.issn.1674-0475.2000.03.223

Previous Articles     Next Articles

INTRAMOLECULAR ENERGY TRANSFER IN ANTHRAQUIONE CROWN ETHER EuEu3+ COMPLEX

JIANG Hua, XU Hui-jun, SHEN Shu-yin, ZHOU Qing-fu   

  1. Institute of Photographic Chemistry, The Chinese Academy of Sciences, Beijing 100101, P.R.China
  • Received:2000-03-21 Revised:2000-05-24 Online:2000-08-20 Published:2000-08-20

Abstract: The photophysical properties of anthraquione crown ether and its Eu3+ complex were investigated. Selective excitation of the anthraquione moiety intramolecular energy transfer from excitated anthraquione to Eu3+ occurred, the luminescence of Eu3+ was observed.Luminescence decay measurement showed that the lifetime of Eu3+ in the complex was prolonged as the result of encapsulation of Eu3+ in the crown ether ring. Addition of water into the solution of Eu3+ -complex,the intensity of the emission of Eu3+ complex decreased showing that the crown ether does not completely shield the Eu3+ from interaction with water and the solvent.

Key words: intramolecular energy transfer, anthraquione crown ether, Eu3+-complex

CLC Number: