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).
Proton NMR study on the complexation of organic molecules with cyclotetra-5-sulfonatotropolonylene in aqueous solution
โ Scribed by Bo-Long Poh; Yian Yian Ng
- Publisher
- Elsevier Science
- Year
- 1998
- Tongue
- French
- Weight
- 381 KB
- Volume
- 54
- Category
- Article
- ISSN
- 0040-4020
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โฆ Synopsis
The complexation of aromatic (phenols and monosubstituted benzenes) and aliphatic organic molecules by the macrocycle, cyclotetra-5sulfonatotropolonylene, in an aqueous medium was studied by proton nmr spectroscopy. The aromatic molecules formed moderately strong complexes whereas the aliphatic molecules formed weak complexes.
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