Issue 10, 2012
From the journal:

CrystEngComm

Near-infrared (NIR) luminescent homoleptic lanthanide Salen complexes Ln4(Salen)4 (Ln = Nd, Yb or Er)†

Weixu Feng,a   Yao Zhang,a   Xingqiang Lü,*ab   Yani Hui,a   Guoxiang Shi,a   Dan Zou,a   Jirong Song,a   Daidi Fan,a   Wai-Kwok Wong*c  and  Richard A. Jonesd  

* Corresponding authors

a Shaanxi Key Laboratory of Degradable Medical Material, Shaanxi Key Laboratory of Physico-inorganic Chemistry, Northwest University, Xi'an 710069, Shaanxi, China
E-mail: lvxq@nwu.edu.cn

b Fujian Institute of Research on the Structure of Matter, Chinese Academy of Science, Fuzhou 350002, Fujian, China

c Department of Chemistry, Hong Kong Baptist University, Waterloo Road, Kowloon Tong, Hong Kong, China
E-mail: wkwong@hkbu.edu.hk

d Department of Chemistry and Biochemistry, The University of Texas at Austin, 1 University Station A5300, Austin, TX 78712-0165, United States

Abstract

The series of homoleptic tetranuclear [Ln4(L)2(HL)2(NO3)2(OH)2]·2(NO3) (Ln = Nd, 1; Ln = Yb, 2; Ln = Er, 3; Ln = Gd, 4) have been self-assembled from the reaction of the Salen-type Schiff-base ligand H222L with Ln(NO3)3·6H2O (Ln = Nd, Yb, Er or Gd), respectively (H222L: N,N′-bis(salicylidene)cyclohexane-1,2-diamine). The result of their photophysical properties shows that the strong and characteristic NIR luminescence for complexes 1 and 2 with emissive lifetimes in microsecond ranges are observed and the sensitization arises from the excited state (both 1LC and 3LC) of the Salen-type Schiff-base ligand with the flexible linker.

Graphical abstract: Near-infrared (NIR) luminescent homoleptic lanthanide Salen complexes Ln4(Salen)4 (Ln = Nd, Yb or Er)

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Article information

DOI
https://doi.org/10.1039/C2CE06566E
Article type
Paper
Submitted
23 Nov 2011
Accepted
02 Mar 2012
First published
29 Mar 2012

CrystEngComm, 2012,14, 3456-3463

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Near-infrared (NIR) luminescent homoleptic lanthanide Salen complexes Ln4(Salen)4 (Ln = Nd, Yb or Er)

W. Feng, Y. Zhang, X. Lü, Y. Hui, G. Shi, D. Zou, J. Song, D. Fan, W. Wong and R. A. Jones, CrystEngComm, 2012, 14, 3456 DOI: 10.1039/C2CE06566E

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