Corannulene-Helicene Hybrids: Chiral π-Systems Comprising Both Bowl and Helical Motifs

Org Lett. 2016 Aug 19;18(16):3992-5. doi: 10.1021/acs.orglett.6b01801. Epub 2016 Aug 4.

Abstract

Two distinct structural elements that render π-systems nonplanar, i.e., geodesic curvature and helical motifs, have been combined into new polyarenes that contain both features. The resultant corannulene-[n]helicenes (n = 5, 6) show unique molecular dynamics in their enantiomerization processes, including inversion motions of both the bowl and the helix. Optical resolution of a corannulene-based skeletally chiral molecule was also achieved for the first time, and the influence of the bowl-motif annulation on the chiroptical properties was investigated.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.