Three Zinc(II) Phosphonates: Syntheses, Structures and Sensing of Copper(II) Ions
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- 作者：Hongjie He ; Peng Zhang ; Prof. Dr. Yun Ling ; Prof. Dr. Zhenxia Chen and Prof. Dr. Yaming Zhou
- 刊名：ChemPlusChem
- 出版年：2016
- 出版时间：August 2016
- 年：2016
- 卷：81
- 期：8
- 页码：822-827
- 全文大小：1437K
- ISSN：2192-6506
文摘
Three zinc(II) phosphonocarboxylates, [Zn3(m-bpc)2(OH)]⋅(CH3)2NH2⋅H2O (1), [Zn2(m-bpc)(m-Hbpc)(4,4′-bpy)]⋅(CH3)2NH2⋅H2O (2) and [Zn3(m-bpc)2(4,4′-bpy)(CH3)2NH]⋅H2O (3) (m-H3bpc=3-phosphonobenzoic acid, 4,4′-bpy=4,4′-bipyridine), have been solvothermally synthesised to generate unique topologies, as characterised by single-crystal XRD. Compound 1 possesses a diamond topology, which has rarely been found among phosphonate-based metal–organic frameworks. Compound 2 shows a 2D layered structure with pendant m-Hbpc and 4, 4′-bpy ligands, in which the layers feature as a zeolite-like network. Compound 3 has a 3D sandwich pillared-layer framework with an interesting double-helix structure. Only 1 shows an adsorption capacity for CO2 of 28.5 cm3 g−1 at 273 K. Luminescence studies revealed that both 1 and 2 could be potential sensors to copper(II) ions.