Molecular construction based on icosahedral carboranes and aromatic N,N′-dimethylurea groups. Aromatic layered molecules and a transition metal complex

Abstract cis -Preference of N -methyl aromatic ureas in combination with regulation of the C -substituent on an o -carborane cage is applicable to construct structurally unique macromolecules. Aromatic ureas with multilayer structure ( 5 – 12 ) and an aromatic urea containing an intramolecular nido -carborane–cobalt complex ( 13 ) were synthesized and their structures were determined by X-ray crystallography.