Yanagawa A, Inoue R, Morisaki Y. Synthesis and characterization of one-handed helical oligo(
o-phenylene)s: control of axial chirality by planar chiral [2.2]paracyclophane.
Chem Commun (Camb) 2024;
60:1468-1471. [PMID:
38223998 DOI:
10.1039/d3cc05000a]
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Abstract
Optically active oligo(o-phenylene)-layered molecules were synthesized from planar chiral enantiopure [2.2]paracyclophane. Their structures and optical properties were characterized by experimental and theoretical approaches. The axial chiralities between phenylene rings of the oligo(o-phenylene)s were controlled by the planar chirality to form one-handed helical structures. The o-quinquephenyl-layered molecule was emissive, and circularly polarized luminescence was observed with a high anisotropy factor (|glum| value) of 0.012.
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