Polysilane Dendrimers

Polysilane Dendrimers

“…Again, purification of these compounds can be carried out easily by vacuum distillation or sublimation. The triflato-functionalized core structure 14 can conveniently be generated via protodesilylation of 9 with three equivalents of trifluoromethanesulfonic acid [20]. The hexachloro-functionalized silane 17 is generated by base-induced redistribution of Cl 2 MeSi-SiMeCl 2 (derived from chlorination of the Mueller-Rochow disilane fraction) [68,69].…”

“…Sekiguchi's group was the first to report the synthesis of a single-core polysilane dendrimer of second generation 47 by using a divergent synthetic methodology ( Figure 11) [20]. In the first step, silyl triflate 14 (X = OTf) was generated in situ from the reaction of TfOH with 9 (see also Figure 4) and subsequently reacted with 3 equivalents of lithium silanide Li-20 to afford the phenyl-functionalized first-generation dendrimer 45 (S-1312) in 43% yield.…”

“…Soon after the synthesis and structural characterization of further dendritic polysilanes including the first polysilane dendrimer of second generation reported by Sekiguchi et al [20], the field developed rapidly, in part driven by the belief that polysilane dendrimers have the potential of being useful as optoelectronic materials. In fact, polysilane dendrimers combine photo-physical properties with good solubility-similar to linear polysilanes-but have higher thermal and chemical resistance.…”

PAMAMOS: The first commercial silicon‐containing dendrimers and their applications

“…Most notable among these were the dendrimerbased catalysts of Gerard van Koten and his colleagues at University of Utrecht, Holland, 12 which were aimed at revolutionizing the field of catalytic chemistry by marrying the benefits of homogeneous and heterogeneous catalysis. 13 The other two main groups of siliconbased dendrimers were reported later: polysilanes independently by Lambert's, 14 Sekiguchi's, 15 and Suzuki's 16 groups, and polysilazenes by Hu and Son, 17 in 1995 and 1998, respectively.…”

Synthesis of novel bis[(tris(dimethylsilyl)methyl)alkyl]ferrocene derivatives as new ferrocenyl multi-functional silyl ether compounds

“…More recently, examples of dendrimers with silicon-included, such as carbosilane and siloxane, that have come to the fore. [7][8] The dendrimers including silicon can be classified into three main categories, having siloxane (Si-O), 9 carbosilane (Si-C) [10][11][12][13][14][15] or polysilane (Si-Si) 16 backbones. Synthetic methods for the preparation of silicon-containing dendrimers were reported by many researchers who used the simple repeating procedures such as hydrosilylation, dehydrocoupling, alkenylation as well as alcoholysis.…”