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Lanthanide Metal–Organic Frameworks Showing Luminescence in the Visible and Near‐Infrared Regions with Potential for Acetone Sensing
Author(s) -
Dang Song,
Min Xue,
Yang Weiting,
Yi FeiYan,
You Hongpeng,
Sun ZhongMing
Publication year - 2013
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201301346
Subject(s) - lanthanide , luminescence , fluorescence , materials science , quenching (fluorescence) , infrared , metal , energy transfer , acetone , photochemistry , chemistry , optoelectronics , organic chemistry , optics , ion , metallurgy , molecular physics , physics
The luminescent properties of a family of lanthanide metal–organic frameworks LnL ( Ln =Y, La–Yb, except Pm; L =4,4′‐({2‐[(4‐carboxyphenoxy)methyl]‐2‐methylpropane‐1,3‐diyl}bis{oxy})dibenzoic acid) have been explored, and the energy‐transfer process in the compounds has been carefully analyzed. The visible‐emitting Tb 0.08 Gd 0.92 L and the near‐infrared (NIR)‐luminescent Yb 0.10 Gd 0.90 L show excellent optical performances and can be considered as fluorescent probes for acetone sensing based on luminescence quenching effects arising from host–guest interactions. Moreover, GdL exhibits a strong second harmonic generation (SHG) signal 6.1 times that of potassium dihydrogen phosphate (KDP) and an outstanding phase‐matchable effect. These lanthanide compounds combining fluorescent and nonlinear optical (NLO) properties could meet further requirements as multifunctional materials.