Issue 13, 2009
From the journal:

Dalton Transactions

Near-infrared luminescent xerogel materials covalently bonded with ternary lanthanide [Er(iii), Nd(iii), Yb(iii), Sm(iii)] complexes†

Jing Feng,ab   Jiang-Bo Yu,a   Shu-Yan Song,ab   Li-Ning Sun,a   Wei-Qiang Fan,ab   Xian-Min Guo,ab   Song Dangab  and  Hong-Jie Zhang*a  

* Corresponding authors

a State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, China
E-mail: hongjie@ciac.jl.cn
Fax: +86-431-85698041
Tel: +86-431-85262127

b Graduate School of the Chinese Academy of Sciences, Beijing, P. R. China

Abstract

A β-diketone ligand 4,4,5,5,5-pentafluoro-1-(2-naphthyl)-1,3-butanedione (Hpfnp), which contains a pentafluoroalkyl chain, was synthesized as the main sensitizer for synthesizing new near-infrared (NIR) luminescent Ln(pfnp)3phen (phen = 1,10-phenanthroline) (Ln = Er, Nd, Yb, Sm) complexes. At the same time, a series of lanthanide complexes covalently bonded to xerogels by the ligand 5-(N,N-bis-3-(triethoxysilyl)propyl)ureyl-1,10-phenanthroline (phen-Si) were synthesized in situvia a sol–gel process. [The obtained materials are denoted as xerogel-bonded Ln complexes (Ln = Er, Nd, Yb, Sm).] The single crystal structures of the Ln(pfnp)3phen complexes were determined. The properties of these complexes and the corresponding xerogel materials were investigated by Fourier-transform infrared (FTIR), diffuse reflectance (DR), and field-emission scanning electron microscopy (FE-SEM). After ligand-mediated excitation of these complexes and the corresponding xerogel materials they all show the characteristic NIR luminescence of the corresponding Ln3+ ion. This is attributed to efficient energy transfer from the ligands to the Ln3+ ion (the so-called “antenna effect”).

Graphical abstract: Near-infrared luminescent xerogel materials covalently bonded with ternary lanthanide [Er(iii), Nd(iii), Yb(iii), Sm(iii)] complexes

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Article information

DOI
https://doi.org/10.1039/B819644C
Article type
Paper
Submitted
05 Nov 2008
Accepted
08 Jan 2009
First published
12 Feb 2009

Dalton Trans., 2009, 2406-2414

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Near-infrared luminescent xerogel materials covalently bonded with ternary lanthanide [Er(III), Nd(III), Yb(III), Sm(III)] complexes

J. Feng, J. Yu, S. Song, L. Sun, W. Fan, X. Guo, S. Dang and H. Zhang, Dalton Trans., 2009, 2406 DOI: 10.1039/B819644C

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