Publications (2)9.17 Total impact
-
Article: Locating the Cyclopentano Cousins of the Cucurbit[n]uril Family
[show abstract] [hide abstract]
ABSTRACT: The synthesis of the first family of fully substituted cucurbit[n]uril is discussed and the structural features of precursor glycolurils are highlighted in their importance to achieving higher homologues. The members of the family, where n = 5 – 7 have been fully characterised and increased binding affinities have been identified for dioxane in CyP6Q[6] and adamantyl NH4+ in CyP7Q[7]. A higher homologue is indicated but not conclusively identified.The Journal of Organic Chemistry 01/2012; 77(1):606-11. · 4.45 Impact Factor -
Article: Approach to 10-Unit Bracelet Frameworks Based on Coordination of Alkyl-Substituted Cucurbit[5]urils and Potassium Ions
[show abstract] [hide abstract]
ABSTRACT: The formation of 3D fused 10-membered “bracelet” frameworks derived from the alkyl-substituted curcurbit[5]-urils (SQ[5]s), 1,2,4-hexamethylcucurbit[5]uril (1,2,4-HMeQ[5]), and pentacyclopentanocucurbit[5]uril (PCyHQ[5]) and K+ ions is described. These remarkable catenated structures feature trigonal-planar branching units involving three SQ[5]s connected via their bound K+ ions in a triangular manner in which the coordination of each K+ ion to the five portal carbonyl oxygen atoms of one SQ[5] as well as to a bridging portal carbonyl oxygen from an adjacent SQ[5] draws the edges of three portals into close proximity. The corresponding offset angle at each junction provides the basis for the 3D assembly of the observed fused 10-membered SQ[5] bracelet frameworks.Crystal Growth & Design 01/2010; 10(12):5113-6. · 4.72 Impact Factor
