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Complexation of aromatic hydrocarbons with cyclotetrachromotropylene in aqueous solution

✍ Scribed by Bo-Long Poh; Leeng-Sze Koay

Publisher
Elsevier Science
Year
1990
Tongue
French
Weight
138 KB
Volume
31
Category
Article
ISSN
0040-4039

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The stability constants I( of the 1:l host to guest complexes formed between eight phenols and the cyclis tetramer, cyclotetr chromotropylene, 't in an aqueous solution at pD 7.0 at 25 C were determined b H nmr spectroscopy. They vary from -0 (p-sodium sulfonatophenol) to 400 M \_y (pnitrophenol).

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The phosphorescence spectra of several simple arenes, pyrene, naphthahne, biphenyl and their bfiminated derivatives have been observed in aqueous micellar solutions at room temperature. The success of these experiments is due to the protective screening of the arene triplet state by solubilization i