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Synfacts 2007(7): 0711-0711  
DOI: 10.1055/s-2007-968654
Synthesis of Materials and Unnatural Products
© Georg Thieme Verlag Stuttgart · New York

Novel Template for Synthesis of a Nanoring

Contributor(s): Timothy M. Swager, Koushik Venkatesan
M. Hoffmann, C. J. Wilson, B. Odell, H. L. Anderson*
Oxford University, UK
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Publication History

Publication Date:
22 June 2007 (online)

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Significance

The authors report the template-directed synthesis of a fully conjugated butadiyne-linked cyclic porphyrin octamer with a zinc-zinc distance of 3.4 nm. Remarkable features of this cyclic octamer include its high symmetry (D8h), its template-directed synthesis by bending a ‘rigid-rod’ linear oligomer, its amazingly high affinity for the template and its cylindrical belt-shaped structure, which resembles some natural-light harvesting systems. These wire loops are expected to exhibit unusual magnetic and optical behavior.