title: Corannulene-Helicene Hybrids: Chiral π-Systems Comprising Both Bowl and Helical Motifs.
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.
authors.affiliation: Graduate School of Science, Nagoya University , Chikusa, Nagoya 464-8602, Japan.
authors.forename: Takao
authors.initials: T
authors.lastname: Fujikawa
authors.affiliation: Merkert Chemistry Center, Boston College , Chestnut Hill, Massachusetts 02467-3860, United States.
authors.forename: Dorin V
authors.initials: DV
authors.lastname: Preda
authors.affiliation: Graduate School of Science, Nagoya University , Chikusa, Nagoya 464-8602, Japan.|JST , ERATO, Itami Molecular Nanocarbon Project, Chikusa, Nagoya 464-8602, Japan.
authors.forename: Yasutomo
authors.initials: Y
authors.lastname: Segawa
authors.affiliation: Graduate School of Science, Nagoya University , Chikusa, Nagoya 464-8602, Japan.|JST , ERATO, Itami Molecular Nanocarbon Project, Chikusa, Nagoya 464-8602, Japan.|Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University , Chikusa, Nagoya 464-8602, Japan.
authors.forename: Kenichiro
authors.initials: K
authors.lastname: Itami
authors.affiliation: Merkert Chemistry Center, Boston College , Chestnut Hill, Massachusetts 02467-3860, United States.
authors.forename: Lawrence T
authors.initials: LT
authors.lastname: Scott