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Circularly Polarized Luminescence of Chiral Perylene Diimide Based Enantiomers Triggered by Supramolecular Self-Assembly.
- Source :
- Chemistry - A European Journal; 8/26/2016, Vol. 22 Issue 36, p12910-12915, 6p
- Publication Year :
- 2016
-
Abstract
- Two perylene diimide (PDI) enantiomers ( d/l-PDI) incorporating the d/ l-alanine moiety have been designed and synthesized. d/l-PDI in chloroform displays bright-yellow fluorescence that is redshifted to orange-red when the solvent contains a methanol fraction of 99 vol %. No circular dichroism (CD) or circularly polarized luminescence (CPL) signals were observed for d/l-PDI enantiomers in CHCl<subscript>3</subscript>. Interestingly, the d/l-PDI enantiomers exhibit clear mirror-image Cotton effects and CPL emission in the aggregate state. The optical anisotropy factor ( g<subscript>lum</subscript>) is as high as 0.02 at f<subscript>m</subscript>=99 %, which can be attributed to self-assembly through intermolecular π-π interactions in the aggregate state. [ABSTRACT FROM AUTHOR]
- Subjects :
- AMINO acids
CIRCULAR dichroism
LUMINESCENCE
IMIDES
MOLECULAR self-assembly
Subjects
Details
- Language :
- English
- ISSN :
- 09476539
- Volume :
- 22
- Issue :
- 36
- Database :
- Complementary Index
- Journal :
- Chemistry - A European Journal
- Publication Type :
- Academic Journal
- Accession number :
- 117573819
- Full Text :
- https://doi.org/10.1002/chem.201601328