Carbon-Rich Molecular Objects from Multiply Ethynylated π-Complexes

Abstract

The synthesis and properties of multiply ethynylated π-complexes of Fe, Mn, and Co are described. These complexes are useful as modules for the construction of larger organometallic C-rich mol. objects which can be regarded as segments out of either a planar organometallic all-C net or an expanded fullerene, a fullerenyne. Screening of the material properties of these objects showed that some of them form organometallic liq. cryst. phases or stable Langmuir-Blodgett films at the air-H2O interface. The methodol. for the construction of these organometallic modules should lead to the future synthesis of larger segments of organometallic all-C nets of different topologies. A review with 45 refs. [on SciFinder(R)]