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Synthesis of Triply Fused Porphyrin‐Nanographene Conjugates
Author(s) -
Chen Qiang,
Brambilla Luigi,
Daukiya Lakshya,
Mali Kunal S.,
De Feyter Steven,
Tommasini Matteo,
Müllen Klaus,
Narita Akimitsu
Publication year - 2018
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201805063
Subject(s) - porphyrin , raman spectroscopy , conjugated system , mass spectrometry , molecule , spectroscopy , infrared spectroscopy , desorption , absorption spectroscopy , absorption (acoustics) , scanning tunneling microscope , photochemistry , materials science , chemistry , analytical chemistry (journal) , adsorption , nanotechnology , organic chemistry , polymer , optics , physics , chromatography , quantum mechanics , composite material
Two unprecedented porphyrin fused nanographene molecules, 1 and 2 , have been synthesized by the Scholl reaction from tailor‐made precursors based on benzo[ m ]tetraphene‐substituted porphyrins. The chemical structures were validated by a combination of high‐resolution matrix‐assisted laser desorption/ionization time‐of‐flight mass spectrometry (HR MALDI‐TOF MS), IR and Raman spectroscopy, and scanning tunnelling microscopy (STM). The UV‐vis‐near infrared absorption spectroscopy of 1 and 2 demonstrated broad and largely red‐shifted absorption spectra extending up to 1000 and 1400 nm, respectively, marking the significant extension of the π‐conjugated systems.