or eight neutral sp 2 hybridized C atoms (cubic species) we formally have, in both cases, eight radially oriented electrons at the vertices which can conjugate with the electrons in the radial -orbitals of the linkers. Both polyene and polyyne linkers were considered, yet, we start with the rigid polyyne linkers butadiynyl, hexatriynyl or octatetraynyl which contribute with four, six or eight electrons to radially oriented -orbital frameworks.