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Title: Supramolecular Archimedean Cages Assembled with 72 Hydrogen Bonds

Self-assembly of multiple components into well-defined and predictable structures remains one of the foremost challenges in chemistry. Here, we report on the rational design of a supramolecular cage assembled from 20 ions of three distinct species through 72 hydrogen bonds. The cage is constructed from two kinds of hexagonal molecular tiles, a tris(guanidinium)nitrate cluster and a hexa(4-sulfonatophenyl)benzene, joined at their edges through complementary and metrically matched N-H {hor_ellipsis} O-S hydrogen bonds to form a truncated octahedron, one of the Archimedean polyhedra. The truncated octahedron, with an interior volume of 2200 cubic angstroms, serves as the composite building unit of a body-centered cubic zeolite-like framework, which exhibits an ability to encapsulate a wide range of differently charged species, including organic molecules, transition metal complexes, and 'ship-in-a-bottle' nanoclusters not observed otherwise.
Authors:
; ; ;  [1] ;  [2]
  1. (Milano)
  2. (
Publication Date:
OSTI Identifier:
1025633
Resource Type:
Journal Article
Resource Relation:
Journal Name: Science; Journal Volume: 333; Journal Issue: 07, 2011
Research Org:
Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
Sponsoring Org:
FOREIGNNSFOTHER
Country of Publication:
United States
Language:
ENGLISH
Subject:
08 HYDROGEN; CHEMISTRY; DESIGN; HYDROGEN; TRANSITION ELEMENTS