Metal template synthesis of a tripodal tris(bipyridyl) receptor that encapsulates a proton and an iron(ii) centre in a pseudo cage

Glasson, Christopher R.K., Meehan, George V., Motti, Cherie A., Clegg, Jack K., Davies, Murray S., and Lindoy, Leonard F. (2012) Metal template synthesis of a tripodal tris(bipyridyl) receptor that encapsulates a proton and an iron(ii) centre in a pseudo cage. Australian Journal of Chemistry, 65 (10). pp. 1371-1376.

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Abstract

The Fe(ii) template synthesis of the first member of a new category of tripodal tris-bipyridine ligands incorporating a nitrogen bridgehead is reported. The X-ray structure of the reaction product shows that the ligand adopts a pseudo cage-like structure that encapsulates both a proton and an Fe(ii) ion in its cavity. The complex shows an extended helical arrangement that is effectively 'capped' at its open end by a hydrogen bonded PF6– counter ion that is symmetrically aligned with the 3-fold axis of the helix. A 1H NMR study demonstrated that the encapsulated proton can be reversibly exchanged under acid/base conditions in CD3CN.

Item ID: 24177
Item Type: Article (Refereed Research - C1)
ISSN: 1445-0038
Date Deposited: 05 Dec 2012 05:30
FoR Codes: 03 CHEMICAL SCIENCES > 0302 Inorganic Chemistry > 030207 Transition Metal Chemistry @ 40%
03 CHEMICAL SCIENCES > 0303 Macromolecular and Materials Chemistry > 030302 Nanochemistry and Supramolecular Chemistry @ 50%
03 CHEMICAL SCIENCES > 0305 Organic Chemistry > 030503 Organic Chemical Synthesis @ 10%
SEO Codes: 97 EXPANDING KNOWLEDGE > 970103 Expanding Knowledge in the Chemical Sciences @ 100%
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