In:
Angewandte Chemie, Wiley, Vol. 129, No. 50 ( 2017-12-11), p. 16224-16228
Abstract:
The self‐assembly of a new perylene bisimide (PBI) organogelator with 1,7‐dimethoxy substituents in the bay position affords non‐fluorescent H‐aggregates at high cooling rates and fluorescent J‐aggregates at low cooling rates. Under properly adjusted conditions, the kinetically trapped “off‐pathway” H‐aggregates are transformed into the thermodynamically favored J‐aggregates, a process that can be accelerated by the addition of J‐aggregate seeds. Spectroscopic studies revealed a subtle interplay of π–π interactions and intra‐ and intermolecular hydrogen bonding for monomeric, H‐, and J‐aggregated PBIs. Multiple polymerization cycles initiated from the seed termini demonstrate the living character of this chain‐growth supramolecular polymerization process.
Type of Medium:
Online Resource
ISSN:
0044-8249
,
1521-3757
DOI:
10.1002/ange.v129.50
DOI:
10.1002/ange.201709307
Language:
English
Publisher:
Wiley
Publication Date:
2017
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505872-7
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1479266-7
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506259-7
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