Abstract
A tristerephthalamide host exhibited two helical geometries with (M)- and (P)-helicity, respectively, in terms of the twisting direction of a two-layer structure, and the helical preference switched upon complexation with a ditopic guest. In both uncomplexed and complexed states, the intramolecular transmission of chirality was responsible for the control of helicity.
Highlights
Complexation-induced inversion of helicity by an organic guest in a dynamic molecular propeller based on a tristerephthalamide host with a two-layer structure†
A tristerephthalamide host exhibited two helical geometries with (M)- and (P)-helicity, respectively, in terms of the twisting direction of a two-layer structure, and the helical preference switched upon complexation with a ditopic guest
We used a dynamic molecular propeller to study the inversion of helicity accompanied by a change in conformation upon complexation with a guest, and designed tristerephthalamide hosts 1 with a two-layer structure (Fig. 1)
Summary
Complexation-induced inversion of helicity by an organic guest in a dynamic molecular propeller based on a tristerephthalamide host with a two-layer structure. A preference for a particular sense of dynamic helicity in a state is switched in the other state, accompanied by a change in conformation from a nonpropeller form to a propeller form. As featured in: See Ryo Katoono, Takanori Suzuki et al, Chem.
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