Closing the Nanographene Gap: Surface‐Assisted Synthesis of Peripentacene from 6,6′‐Bipentacene Precursors
Abstract
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.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Oct 20, 2015
- Source ID
- 10.1002/ange.201507104
Entities
People
- Arash A. Omrani
- Cameron Rogers
- Chen Chen
- Felix R. Fischer
- Han Sae Jung
- Hsin‐zon Tsai
- Michael F. Crommie
- Song Lin
- Zahra Pedramrazi
Organizations
- National Institutes of Health
- National Science Foundation
- Office of Basic Energy Sciences
- Office of Naval Research
- Swiss National Science Foundation
- United States Department of Energy