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Selective Formation of a Single Atropisomer of meso – meso ‐Linked Zn II Diporphyrin through Supramolecular Self‐Assembly
Author(s) -
Maeda Chihiro,
Kamada Taisuke,
Aratani Naoki,
Sasamori Takahiro,
Tokitoh Norihiro,
Osuka Atsuhiro
Publication year - 2009
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.200901475
Subject(s) - atropisomer , supramolecular chemistry , zigzag , chemistry , stereochemistry , self assembly , crystallography , mathematics , organic chemistry , geometry , crystal structure
One‐way atropisomerism : meso ‐(4‐Butoxypyrid‐3‐yl)‐substituted Zn II porphyrins self‐assemble to form zigzag‐shaped cyclic hexamers, whereas the meso – meso ‐linked Zn II diporphyrins 1 undergo self‐sorting self‐assembly to form different assemblies. Upon heating, entropically driven one‐way atropisomerism to 1 in−in has been achieved through fragmentary reconstitution of supramolecular aggregates.