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A Promising White‐Light‐Emitting Material Constructed from Encapsulating Eu3+/Tb3+ Hybrid Ions into a Robust Microporous Metal–Organic Framework
Author(s) -
Gao Xuechuan,
Chang Siyuan,
Liu Houting,
Liu Zhiliang
Publication year - 2016
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201501431
Subject(s) - chemistry , microporous material , metal organic framework , hybrid material , metal ions in aqueous solution , ion , nanotechnology , polymer chemistry , chemical engineering , inorganic chemistry , organic chemistry , adsorption , materials science , engineering
Metal–organic frameworks (MOFs) as extremely promising luminescent materials have become a hot area of research in recent years. Porous MOFs containing uncoordinated groups within the pores play a central role in the functional properties of the material and create a driving force for loading lanthanide(III) (Ln 3+ ) ions. In this work, we report the fascinating {[Zn(H 2 thca) 0.5 (tib)] · 5H 2 O} n [ 1 ; H 6 thca = p ‐terphenyl‐3,3′,3′′,5,5′,5′′‐hexacarboxylic acid; tib = 1,3,5‐tris(imidazolyl)benzene] MOF, which has a permanently porous structure and uncoordinated carboxyl groups within the pores; it can emit blue light and can serve as a host for several guest Ln 3+ ions. Strong red fluorescence and green fluorescence can be generated by introducing Eu 3+ and Tb 3+ ions into the pores of compound 1 , respectively. Furthermore, the luminescence properties of Ln 3+ @ 1 can be easily modulated simply by adjusting the amounts of complexing Tb 3+ and Eu 3+ ions, and in this way the material exhibits broadband white emission with ideal CIE coordinates of (0.3438, 0.3547). This work provides a simple and practical strategy for the design and development of white‐light emitters based on lanthanide‐functionalized MOFs, which opens a new perspective for the development of white‐light‐emitting materials.