Issue 11, 2011
From the journal:

CrystEngComm

A series of silver(i)–lanthanide(iii) heterometallic coordination polymers: syntheses, structures and photoluminescent properties†

Min Chen,a   Man-Sheng Chen,a   Taka-aki Okamura,b   Mei-Fang Lv,a   Wei-Yin Sun*a  and  Norikazu Ueyamab  

* Corresponding authors

a Coordination Chemistry Institute, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing 210093, China
E-mail: sunwy@nju.edu.cn
Fax: +86 25 83314502

b Department of Macromolecular Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan

Abstract

A series of new 4d–4f heterometallic coordination complexes based on 5-(4H-1,2,4-triazol-4-yl)benzene-1,3-dicarboxylic acid (H2L), namely [AgLn(L)2(H2O)4] [Ln = Nd (1), Eu (2) and Tb (3)], [AgLn(L)2] [Ln = Nd (4), Eu (5) and Tb (6)] and [AgLn(L)2(H2O)]·H2O [Ln = Er (7) and Yb (8)] were successfully synthesized under hydrothermal conditions and characterized by single-crystal X-ray diffraction, IR, elemental and thermogravimetric analyses. Complexes 1–3 consist of two-dimensional (2D) networks, which are further connected by hydrogen bonding and π–π interactions to give three-dimensional (3D) frameworks. Complexes 4–6 display a 3D (4,6)-connected framework containing 2D heterometallic bilayers. Complexes 7 and 8 are 3-fold interpenetrated (3,4,6)-connected 3D frameworks. The results show that the reaction temperature and the lanthanide have great influence on the structure of the complexes. Luminescent measurements revealed that 2, 3, 5 and 6 exhibit the characteristic emission bands of the lanthanide in the visible region with lifetimes in the range of 0.24–1.81 ms and the strongest emissions are 5D0 → 7F2 for 2 and 5, and 5D4 → 7F5 transitions for 3 and 6.

Graphical abstract: A series of silver(i)–lanthanide(iii) heterometallic coordination polymers: syntheses, structures and photoluminescent properties

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Article information

DOI
https://doi.org/10.1039/C0CE00921K
Article type
Paper
Submitted
07 Dec 2010
Accepted
10 Mar 2011
First published
04 Apr 2011

CrystEngComm, 2011,13, 3801-3810

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A series of silver(I)–lanthanide(III) heterometallic coordination polymers: syntheses, structures and photoluminescent properties

M. Chen, M. Chen, T. Okamura, M. Lv, W. Sun and N. Ueyama, CrystEngComm, 2011, 13, 3801 DOI: 10.1039/C0CE00921K

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