Issue 7, 2011
From the journal:

CrystEngComm

Novel 3D lanthanide-organic frameworks with an unusual infinite nanosized ribbon [Ln3(μ3–OH)2(–CO2)6]+n (Ln = Eu, Gd, Dy): syntheses, structures, luminescence, and magnetic properties†

Hai-Juan Zhang,a   Xiao-Zhu Wang,a   Dun-Ru Zhu,*ab   You Song,b   Yan Xu,*a   Heng Xu,a   Xuan Shen,a   Ting Gaoa  and  Min-Xue Huanga  

* Corresponding authors

a State Key Laboratory of Materials-oriented Chemical Engineering, College of Chemistry and Chemical Engineering, Nanjing University of Technology, Nanjing 210009, P. R. China
E-mail: zhudr@njut.edu.cn
Fax: +86 25 83172261
Tel: +86 25 83587717

b State Key Laboratory of Coordination Chemistry, Nanjing National Laboratory of Microstructures, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, P. R. China

Abstract

Three novel lanthanide-organic frameworks, [Ln3(μ3–OH)2L2(HCO2)3(H2O)2]·H2O (Ln = Eu (1), Gd (2), Dy (3); H2L = 3,3′-dimethoxy-4,4′-biphenyldicarboxylic acid), have been prepared by the solvothermal reaction of Ln(NO3)3·6H2O and H2L in DMF/H2O mixed solvent. Crystallographic data show that 1–3 are isomorphous and crystallize in the monoclinic space groupP21/c. Each complex contains a rare infinite nanosized ribbon [Ln3(μ3–OH)2(–CO2)6]+n with three crystallographically distinct Ln(III) ions: two nine-coordinated and one eight-coordinated. The nanosized ribbons are interconnected through HCO2− anions and L2− linkers to yield a 3D framework. Furthermore, 1 exhibits strong red luminescence upon 343 nm excitation. The investigation of the magnetic properties shows the weak antiferromagnetic coupling between Gd(III) ions in 2 but ferromagnetic coupling between the Dy(III) ions in 3.

Graphical abstract: Novel 3D lanthanide-organic frameworks with an unusual infinite nanosized ribbon [Ln3(μ3–OH)2(–CO2)6]+n (Ln = Eu, Gd, Dy): syntheses, structures, luminescence, and magnetic properties

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Article information

DOI
https://doi.org/10.1039/C0CE00766H
Article type
Paper
Submitted
24 Oct 2010
Accepted
23 Dec 2010
First published
11 Feb 2011

CrystEngComm, 2011,13, 2586-2592

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Novel 3D lanthanide-organic frameworks with an unusual infinite nanosized ribbon [Ln3(μ3–OH)2(–CO2)6]+n (Ln = Eu, Gd, Dy): syntheses, structures, luminescence, and magnetic properties

H. Zhang, X. Wang, D. Zhu, Y. Song, Y. Xu, H. Xu, X. Shen, T. Gao and M. Huang, CrystEngComm, 2011, 13, 2586 DOI: 10.1039/C0CE00766H

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