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Halogen‐Bond‐Mediated Assembly of a Single‐Component Supramolecular Triangle and an Enantiomeric Pair of Double Helices from 2‐(Iodoethynyl)pyridine Derivatives
Author(s) -
Ng ChunFai,
Chow HakFun,
Mak Thomas C. W.
Publication year - 2018
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201800469
Subject(s) - supramolecular chemistry , halogen bond , pyridine , intermolecular force , monomer , crystallography , chemistry , enantiomer , supramolecular assembly , crystallization , halogen , stereochemistry , supramolecular chirality , double bond , single bond , hydrogen bond , polymer chemistry , molecule , crystal structure , organic chemistry , alkyl , polymer
Construction of single‐component supramolecular triangle and unprecedented spontaneous resolution of pairs of intertwined supramolecular 3 1 ‐ and 3 2 ‐double helices by the self‐assembly of achiral 2‐(iodoethynyl)pyridine and its derivatives have been achieved through intermolecular ethynyl C−I⋅⋅⋅⋅N halogen bonds in the crystalline state. Fine‐tuning of the molecular structure of the achiral monomer and choice of solvents for crystallization have a dominant effect on the resultant supramolecular architectures.