Introduction of per(fluoroorganosilyl) peripheries into carbosilane dendrimers and related core-functionalized monodendrons gives rise to anomalous hydrodynamic and viscosimetric behavior

被引：8

作者：

Casado, MA

Roovers, J

Stobart, SR ^{[1
]}

机构：

[1] Univ Victoria, Dept Chem, Victoria, BC V8W 2Y2, Canada

[2] Natl Res Council Canada, Inst Chem Proc & Environm Technol, Ottawa, ON K1A 0R6, Canada

来源：

CHEMICAL COMMUNICATIONS | 2001年 / 04期

关键词：

D O I：

10.1039/b008992n

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Platinum-catalyzed hydrosilylation of allyl-terminated carbosilane monodendrons using the silanes SiHMe2[(CH2)(n)R-f] (1a, n = 2, R-f = n-C6F13; 1b, n = 3, R-f = -C6F5) yields fluorous, liquid analogues to [G-3], BrC6H4(CH2)(3)SiMe[(CH2)(3)SiMe[(CH2)(3)SiMe[(CH2)(3)SiMe2(CH2)(n)R-f](2)](2)](2) (7a, n = 2, R-f = n-C6F13- ; 7b, n = 3, R-f = -C6F5), intrinsic viscosities [eta] for which are unusually low, resulting in calculated hydrodynamic radii/Angstrom (ca. 6.3, [G-1]; 8.3, [G-2]; 11.5, [G-3]) that imply unusually compact structures.

引用

页码：313 / 314

页数：2