Towards the stepwise assembly of molecular Borromean rings. A donor-acceptor ring-in-ring complex

Forgan, R.S. , Spruell, J.M., Olsen, J.-C., Stern, C.L. and Stoddart, J.F. (2009) Towards the stepwise assembly of molecular Borromean rings. A donor-acceptor ring-in-ring complex. Journal of the Mexican Chemical Society, 53(3), pp. 134-138.

Abstract

The assembly of molecular Borromean Rings from constitutionally independent rings in a stepwise manner depends on the preparation of robust ``ring-in-ring'' complexes. The pi-electron rich macrocycle bis-1,5-dinaphtho[50] crown-14 (1) is shown to form a donor-acceptor ring-in-ring complex with the pi-electron poor cyclophane cyclobis(paraquat-4,4'-biphenylene) (2(4+)) in solution. In the crystal superstructure of [1 subset of 2]center dot 4PF(6), CII center dot center dot center dot O interactions between the polyether loops of 1 and the bipyridinium units of 2(4+) could disfavor the threading of dialkylammonium components of a third ring.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Forgan, Professor Ross
• Authors: Forgan, R.S., Spruell, J.M., Olsen, J.-C., Stern, C.L., and Stoddart, J.F.
• Subjects: Q Science > QD Chemistry
• College/School: College of Science and Engineering > School of Chemistry
• Journal Name: Journal of the Mexican Chemical Society
• ISSN: 1870-249X