Carbon Rich Compounds II: Macrocyclic Oligoacetylenes and Other Linearly Conjugated Systems

The definition of Carbon Rich Compounds applied in this as in the previous volume (TCC Volume 196) of this series on the same general topic comprises carbon skeletons with a carbon to hydrogen ratio of 1:(kleiner gleich 1), which ultimately implies all-carbon compounds (i.e. carbon allotropes). The current volume covers modern methods for the coupling - mostly metal catalyzed - of subsystems consisting of double bonds, cyclopropyl groups, arenes, and metal-complexed pi-systems with acetylene and diacetylene units. The resulting structures range from macrocycles, including those with all sorts of linkers between the acetylene and diacetylene units, to conducting polymers and light-emitting materials. Wherever appropriate, chemical transformations of these intriguing compounds and materials are discussed as well.