Supramolecular photocatalysis by confinement--photodimerization of coumarins within cucurbit[8]urils

Cucurbit[8]uril (as low as 10 mol%) acts as a supramolecular catalytic nanoreaction vessel and facilitates the photodimerization of coumarins in water leading to syn dimers. Saturation kinetics shows a sigmoidal dependence with a turnover number of 3.4 min(-1) and a Hill constant of 1.8 indicating a...

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Published inChemical communications (Cambridge, England) Vol. 46; no. 2; pp. 225 - 227
Main Authors Pemberton, Barry C, Barooah, Nilotpal, Srivatsava, D K, Sivaguru, J
Format Journal Article
LanguageEnglish
Published England 01.01.2010
Subjects
Bridged-Ring Compounds - chemistry
Catalysis
Coumarins - chemistry
Dimerization
Imidazoles - chemistry
Kinetics
Nanotechnology
Photochemical Processes
Water - chemistry
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Summary:Cucurbit[8]uril (as low as 10 mol%) acts as a supramolecular catalytic nanoreaction vessel and facilitates the photodimerization of coumarins in water leading to syn dimers. Saturation kinetics shows a sigmoidal dependence with a turnover number of 3.4 min(-1) and a Hill constant of 1.8 indicating a co-operative mechanism in the catalytic process.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
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ISSN:1359-7345
1364-548X
DOI:10.1039/b920605a