Issue 1, 2009
From the journal:

CrystEngComm

Four 2D metal–organic networks incorporating Cd-cluster SUBs: hydrothermal synthesis, structures and photoluminescent properties†

Shuangquan Zang,a   Yang Su,a   Yi-Zhi Li,a   Jianguo Lin,a   Xianying Duan,a   Qingjin Meng*a  and  Song Gaob  

* Corresponding authors

a Coordination Chemistry Institute, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, 210093, Nanjing, P. R. China
E-mail: mengqj@nju.edu.cn

b State Key Laboratory of Rare Earth Materials Chemistry and Applications, Peking University, Beijing, P.R. China

Abstract

Hydro(solvo)thermal reactions between 1,1′-biphenyl-2,2′,3,3′-tetracarboxyl acid (H4bptc) and Cd(NO3)2·4H2O at the presence of the ‘second’ ligands of bpydo, bpe, bpp and bix (bpydo = 4,4′-bipyridine-N,N′-dioxide; bpe = 1,2-bis-(4-pyridyl)ethane; bpp = 1,3-Bis-(4-pyridyl)propane; bix = 1,4-bis(imidazol-1-yl-methyl)benzene) yield four new 2D metal–organic coordination polymers [Cd9(bptc)4(μ3-OH)2(H2O)14]·(bpydo)·2H2O (2), [Cd2(bptc)(bpe)(H2O)2]·H2O (3), [Cd4(bptc)(Hbptc)(bpp)(μ3-OH)(H2O)4] (4), [Cd2(bptc)(bix)(H2O)] (5). Compound 2 presents a 2D grid structure with heptanuclear cadmium cluster and two kinds of discrete Cd atoms secondary building units (SUBs), 3 has a 2D structure with the novel Schläfli symbol of (4.62)(43.63)(44.610.8), 4 gives a 2D grid structure with a pentanuclear cadmium cluster, binuclear cadmium cluster and discrete Cd atom SUBs, and 5 has a 2D distorted CdI2-type topology structure with the Schläfli symbol of (43)2(46.66.83). The novel achiral crown-ether-like cycles in 2, 4 and 5 are found and occupied by the single Cd atom or binuclear cadmium cluster. All compounds give strong luminescent emission and have potential application as optical materials.

Graphical abstract: Four 2D metal–organic networks incorporating Cd-cluster SUBs: hydrothermal synthesis, structures and photoluminescent properties

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Article information

DOI
https://doi.org/10.1039/B806899B
Article type
Paper
Submitted
23 Apr 2008
Accepted
04 Aug 2008
First published
08 Oct 2008

CrystEngComm, 2009,11, 122-129

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Four 2D metal–organic networks incorporating Cd-cluster SUBs: hydrothermal synthesis, structures and photoluminescent properties

S. Zang, Y. Su, Y. Li, J. Lin, X. Duan, Q. Meng and S. Gao, CrystEngComm, 2009, 11, 122 DOI: 10.1039/B806899B

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