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Six new 3d-4f heterometallic coordination polymers constructed from pyrazole-bridged Cu(II)Ln(III) dinuclear units.

作者信息

Yang Ting-Hai, Silva Ana Rosa, Shi Fa-Nian

机构信息

Department of Chemistry, CICECO, University of Aveiro, 3810-193 Aveiro, Portugal.

出版信息

Dalton Trans. 2013 Oct 14;42(38):13997-4005. doi: 10.1039/c3dt51015h. Epub 2013 Aug 9.

DOI:10.1039/c3dt51015h
PMID:23929028
Abstract

Reactions of lanthanide chlorides, copper hydroxycarbonate and 3,5-pyrazole dicarboxylic acid (H3pdc) under hydrothermal conditions result in six new 3d-4f heterometallic coordination polymers with two types of structures. Compounds [CuLn2(pdc)2(Hpdc)(H2O)4]·2H2O (Ln = Tb (1), Dy (2), Er (3), and Y (4) exhibit a layered porous structure, made up of Cu(II)Ln(III) di-nuclear units which are connected by protonated Hpdc(2-) ligand, while the others [Cu3Ln4(pdc)6(H2O)8] (Ln = Eu (5), Gd (6)) display a three-dimensional (3-D) framework structure, in which six Cu(II)Ln(III) di-nuclear units are cross-linked by two coordinated lanthanide atoms. The catalytic properties of 3 are investigated showing its activity and recyclability in the reaction of cyclopropanation of styrene.

摘要

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