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Pure and Applied Chemistry

The Scientific Journal of IUPAC

Ed. by Burrows, Hugh / Stohner, Jürgen


IMPACT FACTOR 2017: 5.294

CiteScore 2017: 3.42

SCImago Journal Rank (SJR) 2017: 1.212
Source Normalized Impact per Paper (SNIP) 2017: 1.546

Online
ISSN
1365-3075
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Volume 77, Issue 11

Issues

Advanced opto-electronics materials by fullerene and acetylene scaffolding

François Diederich
  • Corresponding author
  • Department of Chemistry and Applied Biosciences, ETH Zürich, HCI G313, CH-8093 Zürich, Switzerland and NCCR "Nanoscale Science", Basel, Switzerland
  • Other articles by this author:
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Published Online: 2009-01-01 | DOI: https://doi.org/10.1351/pac200577111851

Functional π-systems with unusual opto-electronic properties are intensively investigated from both fundamental research and technological application viewpoints. This article reports on novel π-conjugated systems obtained by acetylenic and fullerene scaffolding. Linearly conjugated acetylenic nanorods, consisting of monodisperse poly(triacetylene) (PTA) oligomers and extending up to 18 nm length, were prepared to investigate the limits of effective conjugation and to explore at which length a monodisperse oligomer reaches the properties of an infinite polydisperse polymer. With the cyanoethynylethenes (CEEs), a powerful new class of electron acceptors is introduced that undergo intense intramolecular charge-transfer (CT) interactions with appended donors. Macrocyclic scaffolds with unusual opto-electronic properties are perethynylated dehydroannulenes, expanded radialenes, and radiaannulenes bearing peripheral dialkylanilino donor groups. Extended porphyrin-fullerene conjugates are investigated for their novel photophysical and efficient multicharge storage properties. Self-assembly of fullerenes and porphyrins, governed by weak interactions between the two components, leads to unprecedented nanopatterned surfaces that are investigated by scanning tunneling microscopy (STM).

Keywords: Acetylenes; annulenes; conjugated polymers; donor-acceptor interactions; electrochemistry; electron transfer; fullerenes; porphyrins; radiaannulenes; radialenes

Conference

International Conference on Physical Organic Chemistry (ICPOC-17), International Conference on Physical Organic Chemistry, ICPOC, Physical Organic Chemistry, 17th, Shanghai, China, 2004-08-15–2004-08-20

About the article

Published Online: 2009-01-01

Published in Print: 2005-01-01


Citation Information: Pure and Applied Chemistry, Volume 77, Issue 11, Pages 1851–1863, ISSN (Online) 1365-3075, ISSN (Print) 0033-4545, DOI: https://doi.org/10.1351/pac200577111851.

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