期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 133, 期 21, 页码 8110-8113出版社
AMER CHEMICAL SOC
DOI: 10.1021/ja2018898
关键词
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资金
- MICINN [MAT2009-14636-C03-01, CSD2006-00012, CTQ2007-61048]
- EU
- Aragon Government
- Principado Asturias [IB08-088]
The supramolecular architectures of a fluorophore are controlled through the design of a conjugated polycatenar molecule, the self-assembly of which can be addressed toward a columnar liquid-crystalline phase and organogels. Thus, depending on the environmental conditions for self-assembly, compound CA9 organizes into an unprecedented hexagonal columnar mesophase in the condensed state, in which half a molecule constitutes the slice of the column, or into a rectangular mesomorphic-like organization in the presence of apolar solvents such as cyclohexane and dodecane, at a concentration in which fibers form and gelling conditions are fulfilled. In this Col(r)-type arrangement, the organization within the columns depends on the solvent. All of the materials prepared show luminescence, and moreover, a remarkable 3-fold increase in fluorescence intensity was observed in going from the solution to the gel state.
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