Intercalation Assembly and Luminescent Properties of a Novel Luminescent Supramolecular Composite Material, Eu(Ⅲ) Complex with Tetrapodal LigandMontmorillonite

Chem. J. Chinese Universities

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Intercalation Assembly and Luminescent Properties of a Novel Luminescent Supramolecular Composite Material, Eu(Ⅲ) Complex with Tetrapodal LigandMontmorillonite

JIANG Wei^1,2, TANG Yu¹, LIU Wei-Sheng¹, TAN Min-Yu¹

1. State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China;
2. Department of Applied Chemistry, Maoming College, Maoming 525000, China

Received:2006-04-18 Revised:1900-01-01 Online:2006-12-10 Published:2006-12-10
Contact: TANG Yu

Abstract

Abstract:

Eu(Ⅲ) complex with tetrapodal ligand, [EuL(NO₃)]²⁺[L=1,1,1',1'-tetra(2-pyridinecarboxylester)-di(trimethylpropane)] was intercalated into the interlayer space of montmorillonite(MT) by ion exchanging, and a novel luminescent supramolecular composite material [EuL(NO₃)]²⁺-MT was obtained. Its composition and structure were characterized by elemental analysis, XRD and FTIR spectra. The luminescent property of the material was also studied. The results show that the intercalation composite material has a regular layered structure and good luminescent property. Under ultraviolet light the material could emit the characteristic red luminescence emission of Eu³⁺ strongly. The relative luminescence intensity, the monochromaticity and the luminescence lifetime of the Eu(Ⅲ) complex in the composite material are much better than those of the complex dissolved in ethanol solution. It is also found that the luminescent property and the stability of [EuL(NO₃)]²⁺ in the composite material are distinctly improved after it is intercalated into the MT. We deduce that the supramolecular interaction between the host layer and the guest complex ion and the rigid layered structure of the material may be the main reasons of this result.

Key words: Europium(Ⅲ) complex, Montmorillonite, Intercalation assembly, Supramolecular function, Composite material

CLC Number:

O614.33

TrendMD:

JIANG Wei^1,2, TANG Yu¹, LIU Wei-Sheng¹, TAN Min-Yu¹.

Intercalation Assembly and Luminescent Properties of a Novel Luminescent Supramolecular Composite Material, Eu(Ⅲ) Complex with Tetrapodal LigandMontmorillonite

[J]. Chem. J. Chinese Universities, doi: .

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Intercalation Assembly and Luminescent Properties of a Novel Luminescent Supramolecular Composite Material, Eu(Ⅲ) Complex with Tetrapodal LigandMontmorillonite

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