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Title: Probing the dimensions of semi-rigid inner functionalised U-shaped 'bis'-porphyrin cavities
Contributor(s): Gaynor, Shaun Patrick (author); Gunter, Maxwell John (author); Johnston, MR (author); Warrener, RN (author)
Publication Date: 2006
DOI: 10.1039/b601417h
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Abstract: The synthesis of a series of open U-shaped 'bis'-porphyrin cavity molecules is described, with bridged bicyclic backbones to confer rigidity, and a pendant substituted aromatic probe unit suspended on the inside of the cavity. The dimensions and flexibility of the 'bis'-zincporphyrin cavity were probed using several different techniques. Initially the molecular ruler concept was employed, using flexible bidentate ligands as guests with a range of possible linear dimensions. Secondly, NMR methods were employed with rigid bidentate ligand guests of fixed lengths, and thirdly diffusion based NMR methods were utilised. The range of inter-porphyrin distances estimated by these methods suggests that these types of open-cavity systems have a surprising degree of flexibility.
Publication Type: Journal Article
Source of Publication: Organic & Biomolecular Chemistry, v.4, p. 2253-2266
Publisher: Royal Society of Chemistry
Place of Publication: Cambridge, England
ISSN: 1477-0520
Field of Research (FOR): 030302 Nanochemistry and Supramolecular Chemistry
Peer Reviewed: Yes
HERDC Category Description: C1 Refereed Article in a Scholarly Journal
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