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Supramolecular circular helicates formed by destabilisation of supramolecular dimers
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Hamblin, Jacqueline, Tuna, Floriana, Bunce, Siona, Childs, Laura J., Jackson, Alexander, Errington, William, Alcock, Nathaniel W., Nierengarten, Helene, Van Dorsselaer, Alain, Leize-Wagner, Emmanuelle and Hannon, M. J. (Michael J.) (2007) Supramolecular circular helicates formed by destabilisation of supramolecular dimers. Chemistry - A European Journal, Volume 13 (Number 33). pp. 9286-9296. doi:10.1002/chem.200700848 ISSN 0947-6539.
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Official URL: http://dx.doi.org/10.1002/chem.200700848
Abstract
The effect of changes in the angles at the connection points of linear/circular helicates is explored as a route to control the nuclearity and architecture of metallo-supramolecular arrays. This effect is probed by changing the geometry of the metal centre used to assemble bis-pyridylimine ligands that contain a 1,3-bis(aminomethyl) benzene spacer group. Tetrahedral metal ions favour linear dimers, whereas octahedral nickel(II) predominantly gives a triangular circular helicate. Five-coordinate copper(II) falls in the middle of these extremes and results in the formation of solvent-dependent mixtures of dimer and trimer. The trinuclear, triangular, circular helicate structures, which result from coordination to copper(H) and nickel(II), are structurally characterised by X-ray crystallography and reveal that the units can aggregate into hexagonal arrays that contain anion-filled tubelike channels in the solid state.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QD Chemistry | ||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Chemistry | ||||
Journal or Publication Title: | Chemistry - A European Journal | ||||
Publisher: | Wiley - V C H Verlag GmbH & Co. KGaA | ||||
ISSN: | 0947-6539 | ||||
Official Date: | 2007 | ||||
Dates: |
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Volume: | Volume 13 | ||||
Number: | Number 33 | ||||
Number of Pages: | 11 | ||||
Page Range: | pp. 9286-9296 | ||||
DOI: | 10.1002/chem.200700848 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access |
Data sourced from Thomson Reuters' Web of Knowledge
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