Synthesis and structural investigation of new triptycene-based ligands: en route to shape-persistent dendrimers and macrocycles with large free volume.

Triptycene was used to build a series of ligands containing pyrazine groups for use in forming coordination frameworks and as model compounds toward target shape-persistent dendrimers and macrocycles. The phenylenediamine precursors are formed by controlled double nitration/reduction of triptycene, followed by condensation with triptycenyl o-quinone to form… CONTINUE READING