Several bis(trialkylsilylethynyl)indeno[1,2-b]fluorene-6,12-diones have been prepared for study as potential n-type organic semiconductors. The syntheses of the alkynylated IF-diones as well as the synthesis of the parent IF-dione will be described. X-ray crystallographic analysis of two of the alkynylated diones shows that these molecules can display both herringbone packing and �brick and mortar' packing in the solid state, where the molecules possess close carbon van der waals interactions. Cyclic voltammetry data illustrate that the molecules can be reduced easily. These results as a whole suggest that the alkynylated IF-diones could be useful as n-type materials.

Synthesis and crystal structures of alkynylated indeno[1,2-<i>b</i>]fluorene-6,12-diones

245th National Meeting (2013)

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Synthesis and crystal structures of alkynylated indeno[1,2-b]fluorene-6,12-diones