Carborane-based building block

The last example of a potential carborane-based building block for nanoelec-tonics is shown in Figure 11.14. This molecule (FOSSIP) represents the molecular analogue of a three-way (or Y-type) junction with the carborane units that... 

SCHEME 3.1 Syntheticpathway to double- andmulticlusterinhibitorsof HIV protease based on V-substituted bis(ethyleneglycol) amine linker. The carborane-dioxanate building block 1 can be either 8-dioxane-cobalt bis(l,2-dicarbollide) la or 11-vertex 10-dioxane- irfo-7,8-dicarbaundecaborate lb (bridge hydrogen atom is not shown here for the clarity). 

Since icosahedral carboranes are generally viewed as 3D energy sinks as well as polymer building blocks, the thermal and radiation stability that these units impart on the base rubbery material needs to be explored. While the thermal stability of these materials has been studied and reported by a number of workers, there is little reported work on the stability of these materials to ionizing radiation. A brief account of our work within this area is detailed below. 

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