Synthesis of Alkyl-substituted, Strapped Porphyrin to Prepare Stable Alkyl-chain-assisted Self-assembled Monolayers of Porphyrin Conjugates

An alkyl-substituted, strapped porphyrin was synthesized aiming at the preparation of stable alkyl-chain-assisted self-assembled monolayers (SAMs) of porphyrin conjugates. We confirmed that the synthesized strapped porphyrin could form stable SAMs by scanning tunneling microscopy (STM). This approach will lead to the functionalization of alkyl-chain-assisted SAMs by introducing a variety of functional groups in the strapped moiety.