Oligophenylenes as building blocks for well-defined graphite subunits

Here we present a new approach towards extremely large polycyclic aromatic hydrocarbons (PAHs), which uses smooth ambient-temperature cyclodehydrogenation conditions of oligophenylenes in contrast to conventional pyrolytic fusion methods. Vapor-deposition of these structurally well-defined, large ar...

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Bibliographic Details
Published inCarbon (New York) Vol. 36; no. 5; pp. 827 - 831
Main Authors Müller, Markus, Kübel, Christian, Morgenroth, Frank, Iyer, Vivekanantan S., Müllen, Klaus
Format Journal Article Conference Proceeding
LanguageEnglish
Published Oxford Elsevier Ltd 1998
Elsevier Science
Subjects
A. Synthetic graphite
Applied sciences
B. oxidation
C. scanning tunneling microscopy (STM)
C. transmission electron microscopy (TEM)
Chemical modifications
Chemical reactions and properties
D. chemical structure
Exact sciences and technology
Organic polymers
Physicochemistry of polymers
B. oxidation
A. Synthetic graphite
D. chemical structure
C. transmission electron microscopy (TEM)
C. scanning tunneling microscopy (STM)
Modification
Phenylene derivative polymer
Branched polymer
Dehydrogenation
Supramolecular structure
Aromatic polymer
Polycyclic aromatic compound
Experimental study
Oligomer
Dendritic structure
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Summary:Here we present a new approach towards extremely large polycyclic aromatic hydrocarbons (PAHs), which uses smooth ambient-temperature cyclodehydrogenation conditions of oligophenylenes in contrast to conventional pyrolytic fusion methods. Vapor-deposition of these structurally well-defined, large arenes leads to supramolecular, space filling arrangements as revealed by scanning tunneling microscopy analysis. The three-dimensional ordering of PAH micro-crystals is seen by electron diffraction experiments.
ISSN:0008-6223
1873-3891
DOI:10.1016/S0008-6223(98)00011-6