Precise Assembly of Photo-functional Molecules in Phenylazomethine Dendrimer

Abstract

Precise assembly of photo-functional molecules on dendritic phenylazomethine (DPA) was demonstrated. We previously reported the precise assembly of metal ions on dendritic phenylazomethine in stepwise radical fashion. Triphenylmethylium tetrafluoroborate (TPMBF₄) could be coordinated to the imine group of DPA, which allows for control of the number and position of organic molecules in DPA. As one of the applications of an organic molecular assembly, TPM⁺ derivatives holding a photo-functional molecule, azobenzene (Azo-TPM), were incorporated into DPA stepwisely.