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Convergent Synthesis of Platinum-Acetylide Dendrimers

机译:聚合缩水合乙炔树状大分子

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An efficient convergent route to the main chain type of organo-metallic dendrimers,in which platinum moieties are linked by 1,3,5-triethynyl-benzene,has been developed.The synthesis of platinum-acetylide dendrons involved the use of two types of trial-kylsilyl groups for protection of the terminal acetylene.The platinum-acety-lide dendrimers were prepared up to the third generation by reacting dendrons with a triplatinum core and a tet-raplatinum core.Spectroscopic characterization and trace experiments by gel permeation chromatography indicated that the dendrimer molecules have no structural defects.Although a it-conjugated system was used as the bridging ligand,electronic and fluorescence spectra suggested that the interaction among the platinum-acetylide moieties in the dendrimers was small.
机译:已开发出一种有效的收敛途径,以有机金属树枝状聚合物为主链,其中铂部分通过1,3,5-三乙炔基苯连接。铂-乙炔树状树枝状化合物的合成涉及两种类型的通过使树枝状分子与三lat核和四叔-铂核反应,制得直至第三代的铂-乙酰基树枝状大分子。凝胶渗透色谱的光谱表征和痕量实验表明:尽管使用it-共轭体系作为桥联配体,但电子和荧光光谱表明,树枝状聚合物中铂-乙炔基部分之间的相互作用很小。

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