Journal
CHEMICAL RECORD
Volume 17, Issue 7, Pages 713-724Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/tcr.201600133
Keywords
Aggregation; Chirality; Nanoparticles; Supramolecular chemistry
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Funding
- MINECO project [CTQ2013-47401-C2-1]
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Chiral J-aggregates of achiral amphiphilic porphyrins (4-sulfonatophenyl and aryl meso-substituted porphyrins) show several effects under the hydrodynamic forces of common stirring. These effects can be classified as pure mechanic (e.g. elasticity, plasticity and breaking of the self-assembly non-covalent bonding) and chemically selective as detected in the formation/growth of the nanoparticles. Diastereoselective, enantioselective and, depending on the sign of chiral shear forces, even enantiospecific selections have been described. Some types of these effects have been reported in other type of J-aggregates. Reversible and irreversible structural effects have been studied by atomic force imaging. The determination of the optical polarization properties (linear and circular) of their solutions is best done using Mueller matrix polarimetry methods.
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