Journal
BEILSTEIN JOURNAL OF ORGANIC CHEMISTRY
Volume 9, Issue -, Pages 2877-2885Publisher
BEILSTEIN-INSTITUT
DOI: 10.3762/bjoc.9.324
Keywords
charge transfer; glycyrrhetinic acid; organogel; self-assembly
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Funding
- NNSF of China [21172130]
- CSC [201208110117]
- NBRP of China (973 Program) [2012CB821600]
- University of South Carolina, College of Arts and Sciences
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We describe herein the two-component charge-transfer (CT) interaction induced organogel formation with 18 beta-glycyrrhetinic acid appended pyrene (GA-pyrene, 3) as the donor, and 2,4,7-trinitrofluorenone (TNF, 4) as the acceptor. The use of TNF (4) as a versatile electron acceptor in the formation of CT gels is demonstrated through the formation of gels in a variety of solvents. Thermal stability, stoichiometry, scanning electron microscopy (SEM), optical micrographs, and circular dichroism (CD) are performed on these CT gels to investigate their thermal and assembly properties. UV-vis, fluorescence, mass spectrometric as well as variable-temperature H-1 NMR experiments on these gels suggest that the CT interaction is one of the major driving forces for the formation of these organogels.
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