Acta Phys. -Chim. Sin. ›› 2001, Vol. 17 ›› Issue (09): 797-801.doi: 10.3866/PKU.WHXB20010907

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Photoluminescence of Solid Complexes EuxM1-x(TTA)3 (H2O)2 (M=La,Gd)

Liu Ming-Zhao;Yang Zhan-Lan;Zhang Li;Weng Shi-Fu;Wu Jin-Guang   

  1. State Key Laboratory of Rare Earth Material Chemistry and Applications,Chemistry College,Peking University,Beijing　100871
  • Received:2001-02-12 Revised:2001-04-20 Published:2001-09-15
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Abstract: A series of solid complexes EuxM1－x(TTA)3(H2O)2 (M=La,Gd) were synthesized.Their compositions were ensured by the ICP analysis.The FTIR spectroscopy showed that no new compound formed besides Eu (TTA)3(H2O)2 and M(TTA)3(H2O)2(M=La,Gd)(to see Table 3).The luminescence property of them was investigated by using luminescence spectroscopy.The results indicated that the luminescence intensity of the complexes did not have a linear relation with the concentration of Eu3＋.Addition of M3＋ (La3＋ or Gd3＋) enhanced the luminescence of Eu3＋.Furthermore,the enhancement by Gd3＋ is more remarkable than by La3＋.The possible intermolecular energy transfer mechanism was discussed,which explained the phenomena very well.

Key words: Photoluminescence, Complexes, Infrared spectra, Luminescence spectra, 　Energy transfer