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Kinetic Traps to Activate Stereomutation in Supramolecular Polymers
Authors:Jorge S Valera  Rafael Gmez  Luis Snchez
Institution:Jorge S. Valera,Rafael Gómez,Luis Sánchez
Abstract:The helical stereomutation in the kinetically controlled coassembly of the reported carbonyl‐bridged triarylamines (CBTs) is described. The copolymerization of chiral CBTs (S)‐1 or (R)‐1 with achiral 2 in sergeants‐and‐soldiers (SaS) experiments results in a tunable helicity conditioned by the percentage of the chiral sergeant and by the cooling rate. The dissimilar inherent chirality of the extended monomeric (M) and intramolecularly H‐bonded metastable (M*) species, as well as the different stability of the kinetic trap of the chiral CBTs (S)‐1 / (R)‐1 and the achiral CBT 2 , condition the chirality transfer and afford J‐aggregates of inverse handedness.
Keywords:Chiralitä  t  Helizitä  t  Stereomutation  Ungleichgewichtssysteme
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