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Chemistry. 2013 Dec 09;19(50):17172-9. doi: 10.1002/chem.201301346. Epub 2013 Nov 06.

Lanthanide metal-organic frameworks showing luminescence in the visible and near-infrared regions with potential for acetone sensing.

Chemistry (Weinheim an der Bergstrasse, Germany)

Song Dang, Xue Min, Weiting Yang, Fei-Yan Yi, Hongpeng You, Zhong-Ming Sun

Affiliations

  1. State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022 (P. R. China) http:/zhongmingsun.weebly.com.

PMID: 24203320 DOI: 10.1002/chem.201301346

Abstract

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.

Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Keywords: lanthanide-based luminescence; metal-organic frameworks; near-infrared luminescence; nonlinear optics; solvent sensing

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