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Citation: Liu Ming-Zhao, Yang Zhan-Lan, Zhang Li, Weng Shi-Fu, Wu Jin-Guang. Photoluminescence of Solid Complexes Eu_xM_1-x(TTA)₃ (H₂O)₂ (M=La,Gd)[J]. Acta Physico-Chimica Sinica, ;2001, 17(09): 797-801. doi: 10.3866/PKU.WHXB20010907 shu

Photoluminescence of Solid Complexes Eu_xM_1-x(TTA)₃ (H₂O)₂ (M=La,Gd)

1.
State Key Laboratory of Rare Earth Material Chemistry and Applications,Chemistry College,Peking University,Beijing　100871

Received Date: 12 February 2001
Available Online: 15 September 2001

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.
- Photoluminescence;Complexes;Infrared spectra;Luminescence spectra;　Energy transfer
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Photoluminescence of Solid Complexes Eu_xM_1-x(TTA)₃ (H₂O)₂ (M=La,Gd)