학술논문
Helix sense-selective supramolecular polymerization seeded by a one-handed helical polymeric assembly
Document Type
Report
Source
Journal of the American Chemical Society. Nov 4, 2015, Vol. 137 Issue 43, 13792-13795
Subject
Language
English
ISSN
0002-7863
Abstract
The article describes helix sense-selective supramolecular polymerization achieved using a one-handed helical nanotubular polymeric assembly as a seed. First, noncovalnet copolymerization of bipyridine (BPY)-appended achiral hexabenzocoronene (BPYHBC) with chiral BPYHBCS (or BPYHBCR) occurred, which, via the sergeants-and-soldiers effect, afforded a P-helical (or M-helical) nanotube, which was then treated with [Cu.sup.2+] to transform into (BPY)CuNT(P) (or (BPY)CuNT(M)) with a [Cu.sup.2+]/BPY coordination polymer shell. Moreover, the controlled assembly of fluorinated chiral FHBCS and FHBCR as well as achiral FHBC was brought about by the helical seeds (BPY)CuNT(P) and (BPY)CuNT(M) to yield one-handed helical nanotubular supramolecular block copolymers.