1. Two Organic-Inorganic Hybrids Assembled from Transition-Metal Complexes and Keggin-Type Silicotungstates.
- Author
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Luo, Jie, Liu, Jian-Cai, Shao, Bo, Chen, Li-Juan, and Zhao, Jun-Wei
- Subjects
TRANSITION metals ,METAL complexes ,HYDROTHERMAL synthesis ,POLYOXOTUNGSTATES ,PHENANTHROLINE ,X-ray diffraction ,INFRARED spectroscopy - Abstract
By introducing rigid aromatic N-ligands to the lacunary silicotungstate system under hydrothermal conditions, two new Keggin-type polyoxotungstate hybrids with copper-organic complexes [Cu(phen)(HO)][Cu(phen)][α-SiWO]·4HO ( 1) and [Cu(4,4′-bpy)]H[α-SiWO]·3 HO ( 2) (phen = 1,10-phenanthroline, 4,4′-bpy = 4,4′-bipyridine) have been made and characterized by elemental analysis, IR spectra and single-crystal X-ray diffraction. The common architectural feature of 1 and 2 is that both comprise the plenary Keggin-type [α-SiWO] polyoxoanions modified by Cu-organic fragments containing various organic ligands. It should be pointed out that {[Cu(phen) (HO)][α-SiWO]} and {[Cu(phen)][α-SiWO]} building units in 1 are alternately held together into an infinite 1-D chain fashion while the most striking characteristic of 2 is that two types of {-4,4′-bpy-Cu- 4,4′-bpy-Cu-} 1-D polymeric chains are combined together by hexadentate [α-SiWO] polyoxoanions as the inorganic bridging ligands, giving birth to the aesthetic 3-D extended architecture. Moreover, electrochemical properties of 1 and 2 have been investigated. [ABSTRACT FROM AUTHOR]
- Published
- 2015
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