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以Wells-Dawson型多金属氧簇(POM)与T8型倍半硅氧烷簇(POSS)为构筑单元,通过点击化学反应制备了一种由共价键连接形成的、新型的纳米簇-簇杂化分子(POM-2POSS),并采用核磁共振(NMR)、质谱(MS)和红外光谱(IR)对产物化学结构进行了表征.由于两个POSS簇连接在POM簇的同一侧,分子呈现“V”形.同时,利用X射线衍射(XRD)及透射电子显微镜(TEM)表征了簇-簇杂化分子在本体中通过自组装过程形成的超分子结构,结果表明该簇-簇杂化分子形成了有序的层状结构,周期仅为5.1 nm.本研究获得结果对以这类纳米簇为构筑单元构筑新型杂化分子以及通过自组装过程形成的、有序超分子结构的新型杂化材料的设计及制备提供了一个新的思路.
Wells-Dawson-type polyoxometalates (POMs) and T8-type silsesquioxane clusters (POSS) were used as the building blocks. A novel nanocluster-cluster (POM-2POSS), and the chemical structure of the product was characterized by using nuclear magnetic resonance (NMR), mass spectrometry (MS) and infrared spectroscopy (IR) .As the two POSS clusters are connected on the same side of the POM cluster, “V ” shape.Meanwhile, the supramolecular structure formed by self-assembly of cluster-cluster hybrid in bulk was characterized by X-ray diffraction (XRD) and transmission electron microscopy (TEM) The hybrid molecules form an ordered lamellar structure with a period of only 5.1 nm.The results obtained in this study are helpful to construct novel hybridized hybrids by using these nanoclusters as building blocks and to form ordered supramolecular structures by self-assembly New hybrid materials design and preparation provides a new idea.