Issue 30, 2014
From the journal:

CrystEngComm

Alkaline cation directed structural diversity of cubic-cage-based cobalt(ii) metal–organic frameworks: from pcu to bct net†

Ji-Yong Zou,ab   Wei Shi,*a   Jing-Ya Zhang,a   Yan-Fei He,a   Hong-Ling Gao,b   Jian-Zhong Cuib  and  Peng Cheng*a  

* Corresponding authors

a Department of Chemistry, Key Laboratory of Advanced Energy Material Chemistry (MOE), and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, PR China
E-mail: shiwei@nankai.edu.cn
Fax: +86 22 23502458

b Department of Chemistry, Tianjin University, Tianjin 300072, PR China

Abstract

Three 2p–3d heterometallic cubic-cage-based metal–organic frameworks (MOFs), formulated as {[H2N(CH3)2]9(H3O)6[Co(H2O)6][Co8Li3(TDA)12]·14H2O}n (1), {(H3O)15[Co(H2O)6][Co8Li3(TDA)12]·10H2O}n (2) and {[H2N(CH3)2](H3O)16[Co8K5(μ2-O)(TDA)12(H2O)2]·10H2O}n (3) (H3TDA = 1H-1,2,3-triazole-4,5-dicarboxylic acid), have been successfully synthesized and structurally characterized in detail. In these 2p–3d heterometallic cubic-cage-based MOFs, eight Co2+ cations as the vertexes are interconnected by twelve TDA3− ligands as the edges to form an unusual [Co8(TDA)12]20− cubic cage with edges of 6.12 Å, in which a hexahydrated Co2+ ion is captured for 1 and 2. The neighboring [Co8(TDA)12]20− cubic cages are further bridged by Li+ ions for 1 and 2 and K+ ions for 3 to give 3D 6-connected pcu nets for 1 and 2 and a 10-connected bct net for 3. The magnetic properties of 1–3 were studied in detail.

Graphical abstract: Alkaline cation directed structural diversity of cubic-cage-based cobalt(ii) metal–organic frameworks: from pcu to bct net

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Article information

DOI
https://doi.org/10.1039/C4CE00597J
Article type
Paper
Submitted
23 Mar 2014
Accepted
30 May 2014
First published
30 May 2014

CrystEngComm, 2014,16, 7133-7140

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Alkaline cation directed structural diversity of cubic-cage-based cobalt(II) metal–organic frameworks: from pcu to bct net

J. Zou, W. Shi, J. Zhang, Y. He, H. Gao, J. Cui and P. Cheng, CrystEngComm, 2014, 16, 7133 DOI: 10.1039/C4CE00597J

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