Premium
Self‐Assembly of Coordination Polyhedra with Highly Entangled Faces Induced by Metal–Acetylene Interactions
Author(s) -
Domoto Yuya,
Abe Masahiro,
Kikuchi Takashi,
Fujita Makoto
Publication year - 2020
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201913142
Subject(s) - acetylene , tetrahedron , chemistry , crystallography , supramolecular chemistry , polyhedron , metal , self assembly , structural motif , stereochemistry , crystal structure , geometry , mathematics , organic chemistry , biochemistry
The self‐assembly of nanostructures is dominated by a limited number of strong coordination elements. Herein, we show that metal–acetylene π‐coordination of a tripodal ligand (L) with acetylene spacers gave an M 3 L 2 double‐propeller motif (M=Cu I or Ag I ), which dimerized into an M 6 L 4 interlocked cage (M=Cu I ). Higher (M 3 L 2 ) n oligomers were also selectively obtained: an M 12 L 8 truncated tetrahedron (M=Cu I ) and an M 18 L 12 truncated trigonal prism (M=Ag I ), both of which contain the same double‐propeller motif. The higher oligomers exhibit multiply entangled facial structures that are classified as a trefoil knot and a Solomon link. The inner cavities of the structures encapsulate counteranions, revealing a potential new strategy towards the synthesis of functional hollow structures that is powered by molecular entanglements.