Self-Assembly of Extended High-Dimensional Architectures from Anderson-type Polyoxometalate Clusters

作者：Haiyan An, Yangguang Li, Dong‐Rong Xiao, Enbo Wang, Chunyan Sun · 发表于：Crystal Growth & Design · 年份：2006 · DOI：10.1021/cg050326p · 被引用次数：133 · 研究领域：Polyoxometalates: Synthesis and Applications、Metal-Organic Frameworks: Synthesis and Applications、Nanocluster Synthesis and Applications

Three unusual compounds based on polyoxometalate building blocks, [(C 6 H 5 NO 2 ) 2 Ln(H 2 O) 4 ] 2 [IMo 6 O 24 ][NO 3 ]·4H 2 O (Ln = Ce 1 and La 2 ) and [(H 2 O) 4 Ag 3 ][Cr(OH) 6 Mo 6 O 18 ]·3H 2 O 3, have been synthesized and characterized by elemental analysis, IR and X-ray photoelectron spectroscopy, thermogravimetry analysis, and single-crystal X-ray diffraction. Compounds 1 and 2 are isostructural and possess a unique two-dimensional (2D) network, which is composed of rare earth coordination polymer chains joint together by [IMo 6 O 24 ] 5- polyoxoanions, representing the first example of 2D inorganic−organic hybrid compounds based on A-type Anderson polyoxoanions. Compound 3 is constructed from B-type Anderson polyoxoanions [Cr(OH) 6 Mo 6 O 18 ] 3- and silver (I) ions to yield a three-dimensional (3D) open framework containing “guest” water molecules. To our best knowledge, it is the first time Anderson-type polyoxometalate motifs have been connected with silver ions to construct a 3D covalent framework.