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Structurally elusive inositol hexakisphosphates have been trapped in host–guest sandwiches between two picolinamide macrocycles that remain intact in solution, aided by hydrogen bonds and electrostatic interactions. This first report of macrocyclic complexes of inositol hexakisphosphates provides structural insight to significant biosources of phosphorus that impact the global phosphorus cycle.
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Macrocyclic and acyclic supramolecular elements for co-precipitation of square-planar gold( iii ) tetrahalide complexes
Macrocyclic hosts have long been used for guest encapsulation, and recently a new application has emerged; employment as supramolecular elements for capture and recovery of gold through host/guest co-precipitation. The guests are square-planar tetrahaloaurate anions, practically important gold complexes with a capacity to engage in non-covalent interactions such as hydrogen bonding and Au–π interactions. The successful macrocyclic hosts for co-precipitation include cyclodextrins, cucurbiturils, and cyclophanes, with recent expansion of the structural scope to include acyclic amides.
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- Award ID(s):
- 1708240
- PAR ID:
- 10281818
- Date Published:
- Journal Name:
- Organic Chemistry Frontiers
- Volume:
- 8
- Issue:
- 6
- ISSN:
- 2052-4129
- Page Range / eLocation ID:
- 1294 to 1301
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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- Free Publicly Accessible Full Text
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Accepted Manuscript1.0
- Journal Article:
- https://doi.org/10.1039/D0QO01562H
