Encapsulation and luminescent property of [C5H5NC16H33][Eu(TTA)4] (TTA: tetrakis(1-(2-thenoy)-3,3,3-trifluoracetate) in chiral Si-MCM-41

Xu, Qinghong; Dong, Wenjun; Li, Hongwu; Li, Liansheng; Feng, Shouhua; Xu, Ruren

doi:10.1016/s1293-2558(03)00019-0

Cited by 11 publications

(1 citation statement)

References 23 publications

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“…34,[61][62][63] On the other hand, most of the highly luminescent Eu III -tetrakis(2-thenoyltriuoroacetonates) were bonded to inorganic frameworks either by weak van der Waals or electrostatic interactions. [64][65][66][67] In the present study we report the synthesis and characterization of Ln III -tetrakis(2-thenoyl-triuoroacetonate) functionalized Bp-PMO hybrid materials, in which TTA is covalently bonded to the Bp-PMO framework. These hybrid materials are characterized by elemental and thermogravimetric analyses, FT-IR spectroscopy, powder X-ray diffraction, SEM, TEM, 29 Si, 13 C MAS NMR, UV-visible absorption and photoluminescence spectroscopy.…”

Section: Introductionmentioning

confidence: 99%

Biphenylene-bridged mesostructured organosilica as a novel hybrid host material for LnIII (Ln = Eu, Gd, Tb, Er, Yb) ions in the presence of 2-thenoyltrifluoroacetone

et al. 2013

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A hierarchically ordered 4,4 0 -biphenylene-bridged mesoporous organosilica framework (Bp-PMO) has been synthesized with the aim of using it as a new hybrid host for Ln III ions. A series of novel organicinorganic luminescent hybrid materials have been obtained by covalently linking Ln III complexes (Ln ¼ Eu, Gd, Tb, Er, and Yb) to Bp-PMO functionalized with 2-thenoyltrifluoroacetone (HTTA). The visible and NIR photoluminescence studies of the hybrid materials show that Bp-PMO acts both as an inorganic host and an organic co-sensitizer for Ln III ions. The intrinsic quantum yield and lifetime data obtained for the hybrid material containing Eu III (54.5% and 615 ms) are among the highest values reported for hybrid materials containing Eu III tetrakis(b-diketonate) complexes. The combination of Bp-PMO and HTTA also provides sizable sensitization for Tb III , Er III and Yb III ions. The overall quantum yields and lifetime measurements for mixed metallic hybrid materials show that Ln / Ln 0 energy transfer occurs in the mixed lanthanide systems. In addition, controlling the Ln/Ln 0 ratio allows one to tune the emission colour.

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