CJCU

Chem. J. Chinese Universities ›› 2013, Vol. 34 ›› Issue (6): 1318.doi: 10.7503/cjcu20121156

• Article: Inorganic Chemistry • Previous Articles     Next Articles

Assembly of Rare-earth Complex [Eu(Bipy)2]Cl3 and [Tb(Bipy)2]Cl3 on Surface Modified Exfoliated LDHs and Photoluminescent Properties of the Assemblies

ZHAO Xiu-Qiao, WANG Hui, DONG Li-Jun, XU Qing-Hong   

  1. State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
  • Received:2012-12-21 Online:2013-06-10 Published:2013-04-01

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Abstract:

[Eu(Bipy)2]Cl3 and [Tb(Bipy)2]Cl3 are assembled on surface of exfoliated Mg2Al-NO3-LDH modified with N——acetamide by covalent bonding and photophysical properties of the assembly were studied. Emission spectra show that the fluorescence intensities of the rare earth complexes are increased on the surface of exfoliated Mg2Al-NO3-LDH greatly. The fluorescence intensities of EM-Mg2Al-NO3-LDH/[Eu(Bipy)2]3+ and EM-Mg2Al-NO3-LDH/[Tb(Bipy)2]3+ are 43.5 and 53.7 times of the pure compelex. XPS and UV-Vis studies show that the increase is illuminated from the interactions between the host and guests, and the affections from host’s structure to the luminance of guests were studied carefully.

Key words: Rare-earth complex, Excitation and emission spectra, Exfoliated Mg2Al-NO3-LDH, Silane modification

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