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- Title
Synthesis and Disassembly/Reassembly of Giant Ring-Shaped Polyoxotungstate Oligomers.
- Authors
Minato, Takuo; Suzuki, Kosuke; Yamaguchi, Kazuya; Mizuno, Noritaka
- Abstract
The disassembly and reassembly of giant molecules are essential processes in controlling the structure and function of biological and artificial systems. In this work, the disassembly and reassembly of a giant ring-shaped polyoxometalate (POM) without isomerization of the monomeric units is reported. The reaction of a hexavacant lacunary POM that is soluble in organic solvents, [P2W12O48]14−, with manganese cations gave the giant ring-shaped POM [{γ-P2W12O48Mn4(C5H7O2)2(CH3CO2)}6]42−. This POM is a hexamer of manganese-substituted {P2W12O48Mn4} units, and its inner cavity was larger than any of those previously reported for ring-shaped polyoxotungstates. It was disassembled into monomeric units in acetonitrile, and the removal of the capping organic ligands on the manganese cations led to reassembly into a tetrameric ring-shaped POM, [{γ-P2W12O48Mn4(H2O)6}4(H2O)4]24−.
- Subjects
MOLECULAR self-assembly; POLYOXOTUNGSTATES; OLIGOMERIZATION; ISOMERIZATION; MOLECULAR structure
- Publication
Angewandte Chemie International Edition, 2016, Vol 55, Issue 33, p9630
- ISSN
1433-7851
- Publication type
Article
- DOI
10.1002/anie.201604094