Premium
Closing the Nanographene Gap: Surface‐Assisted Synthesis of Peripentacene from 6,6′‐Bipentacene Precursors
Author(s) -
Rogers Cameron,
Chen Chen,
Pedramrazi Zahra,
Omrani Arash A.,
Tsai HsinZon,
Jung Han Sae,
Lin Song,
Crommie Michael F.,
Fischer Felix R.
Publication year - 2015
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201507104
Subject(s) - pentacene , materials science , spintronics , substrate (aquarium) , nanotechnology , ferromagnetism , condensed matter physics , oceanography , physics , layer (electronics) , geology , thin film transistor
The thermally induced cyclodehydrogenation reaction of 6,6′‐bipentacene precursors on Au(111) yields peripentacene stabilized by surface interactions with the underlying metallic substrate. STM and atomic‐resolution non‐contact AFM imaging reveal rectangular flakes of nanographene featuring parallel pairs of zig‐zag and armchair edges resulting from the lateral fusion of two pentacene subunits. The synthesis of a novel molecular precursor 6,6′‐bipentacene, itself a synthetic target of interest for optical and electronic applications, is also reported. The scalable synthetic strategy promises to afford access to a structurally diverse class of extended periacenes and related polycyclic aromatic hydrocarbons as advanced materials for electronic, spintronic, optical, and magnetic devices.