A series of hybrids with a framework constructed from {-SiW11-Ln-SiW11-}(n) chains and {Cu/bimpy} ribbons

作者：Zhou, Wanli^*; Zhang, Zheyu; Peng, Jun; Wang, Xiang; Shi, Zhenyu; Li, Guangzhe

来源：CrystEngComm, 2014, 16(47): 10893-10901.

DOI：10.1039/c4ce01409j

• BOND-VALENCE PARAMETERS
• KEGGIN-TYPE
• MAGNETIC-PROPERTIES
• CRYSTAL-STRUCTURE
• POLYOXOMETALATE
• POLYOXOTUNGSTATES
• DERIVATIVES
• TUNGSTOPHOSPHATE
• POLYOXOANIONS
• SINGLE

This paper reports the preparation and X-ray single crystal structures of five organic-inorganic hybrid compounds with 3D framework, [Cu-2.5(bimpy)(2)(H2O)(2)][Ln(H2O)(3)(alpha-SiW11O39)]center dot xH(2)O [Ln = Eu-III and x = 3.5 for (1), Ln = Sm-III and x = 2.5 for (2), Ln = Ho-III and x = 3.5 for (3), Ln = Y-III and x = 3.5 for (4), Ln = Ce-III and x = 3 for (5)] (bimpy = 3,5-bis(1-imidazolyl)pyridine). Compounds 1-5 are isostructural, showing a 3D framework featured by {-SiW11-Ln-SiW11-}(n) inorganic chains and {Cu/bimpy} metal-organic ribbons stemmed from Cu2+ ions and bimpy ligands. The adjacent {Cu/bimpy} ribbons are connected by two antiparallel {-SiW11-Eu-SiW11-}(n) chains to create a 2D layer structure, which is extended to a (3,4,4,4,6)connected 3D framework with (4 center dot 7(2))(4 center dot 6 center dot 7(3)center dot 8)(4(2)center dot 5(3)center dot 7)(4(2)center dot 7(2)center dot 9(2))(4(2)center dot 5(2)center dot 6(7)center dot 8(3)center dot 10) topology through the Cu-O covalent bonds. The magnetic and electrochemical properties of compounds 1 and 2 have been studied.

• 出版日期2014
• 单位东北师范大学; 通化师范学院