Synthetic, Structural, Spectroscopic, Electrochemical Studies and Self-assembly of Nanoscale Polyoxometalate−Organic Hybrid Molecular Dumbbells

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• 作者：Yi Zhu ; Longsheng Wang ; Jian Hao ; Zicheng Xiao ; Yongge Wei ; Yuan Wang
• 刊名：Crystal Growth & Design
• 出版年：2009
• 出版时间：August 5, 2009
• 年：2009
• 卷：9
• 期：8
• 页码：3509-3518
• 全文大小：551K
• 年卷期：v.9,no.8(August 5, 2009)
• ISSN：1528-7505

文摘

Three rigid-rod conjugated organic−inorganic hybrid nanodumbbells (Bu₄N)₄[O₁₈Mo₆N(C₆H₄)NMo₆O₁₈] (1), (Bu₄N)₄[O₁₈Mo₆N(C₁₂H₈)NMo₆O₁₈] (2), and (Bu₄N)₄[O₁₈Mo₆N(C₁₄H₁₂)NMo₆O₁₈] (3) bearing terminal polyoxometalate (POM) cages, with different lengths of approximately 2−3 nm and different substituents on the rod, have been synthesized via one-pot reaction of octamolybdate and the appropriate aromatic diamine dihydrochloride with N,N′-dicyclohexylcarbodiimide (DCC) as a dehydrating agent. These complexes have been characterized with UV−vis, IR, ¹H NMR, ESI mass spectrometry, cyclic voltammetry, differential pulse voltammetry, and X-ray single-crystal diffraction techniques. The influence of the rod length and substituents on properties of these complexes has been investigated. In addition, the self-assembly of these nanorods has also been explored.