Synthesis and solid state structures of N,N′-linked carbazoles and indoles

The synthesis and solid state conformations of a number of N,N′-linked carbazoles and indoles has been investigated. Using xylyl-based linkers, the o, m and p-linked carbazoles and indoles , and , were prepared. Likewise, unsymmetrical derivatives were also prepared. Investigation using X-ray crystallography showed that the heterocycles adopted either stretched or folded conformations in the solid state.