TY  - JOUR
A1  - Gershberg, Jana
A1  - Fennel, Franziska
A1  - Rehm, Thomas H.
A1  - Lochbrunner, Stefan
A1  - Würthner, Frank
T1  - Anti-cooperative supramolecular polymerization: a new K\(_2\)-K model applied to the self-assembly of perylene bisimide dye proceeding via well-defined hydrogen-bonded dimers
T2  - Chemical Science
N2  - A perylene bisimide dye bearing amide functionalities at the imide positions derived from amino acid L-alanine and a dialkoxy-substituted benzyl amine self-assembles into tightly bound dimers by π-π-stacking and hydrogen bonding in chloroform. In less polar or unpolar solvents like toluene and methylcyclohexane, and in their mixtures, these dimers further self-assemble into extended oligomeric aggregates in an anti-cooperative process in which even numbered aggregates are highly favoured. The stepwise transition from dimers into oligomers can not be properly described by conventional K\(_2\)-K model, and thus a new K\(_2\)-K aggregation model has been developed, which interpretes the present anti-cooperative supramolecular polymerization more appropriately. The newly developed K\(_2\)-K model will be useful to describe self-assembly processes of a plethora of other π-conjugated molecules that are characterized by a favored dimer species.
KW  - π–π Stacking
KW  - nucleation elongation
KW  - upramolecular polymerization process
KW  - dimerization
KW  - K2–K model
Y1  - 2016
UR  - https://opus.bibliothek.uni-wuerzburg.de/frontdoor/index/index/docId/19142
UR  - https://nbn-resolving.org/urn:nbn:de:bvb:20-opus-191428
VL  - 7
IS  - 3
ER  -