Syntheses and structures of four organic–inorganic hybrids based on the surface restricted image building unit and various zinc coordination groups

Exploitation of interesting As–V–O cluster and transition metal complexes to construct extended framework has resulted in the four novel compounds View the MathML source[Zn(en)2][(H2O)Zn(en)2As8IIIV14IVO42(H2O)]·H2O(1), View the MathML source[(H2O)Zn(1,10-phen)2]2[As8IIIV14IVO42(H2O)]·4H2O(2), View the MathML source[{(H2O)Zn(2,2′-bpy)2}{Zn(2,2′-bpy)2}As8IIIV14IVO42(H2O)0.5]2[{(H2O)Zn(2,2′-bpy)2As8IIIV14IVO42(H2O)0.5}2{Zn(2,2′-bpy)2}2]·3H2O(3), and View the MathML source[(H2O)Zn(4,4′-bpy)]2[As8IIIV14IVO42(H2O)]·2H2O(4) (en = ethylenediamine, phen = phenanthroline and bipy = bipyridine) under mild hydrothermal conditions and characterized by IR, XPS, TGA, and single-crystal X-ray diffraction. The main structural feature of these compounds is the presence of View the MathML source[As8IIIV14IVO42] as inorganic building block, on which the zincorganic blocks are supported. Different bidentate organodiamine ligands are used in the four reaction systems, which are responsible for the variety of structures. Furthermore, the electrochemical properties of these compounds have been studied via the method of bulk-modified carbon paste electrodes.