Can Hydrophobic Interaction Explain Precise Molecular Recognition in Aqueous Mixed Solvents.
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Accession number;99A0228194
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| Title;Can Hydrophobic Interaction Explain Precise Molecular Recognition in Aqueous Mixed Solvents. |
| Author;
ENDO TADASHI
(Aoyama Gakuin Univ., Sch. of Sci. and Eng.)
IIDA TAKAHIRO
(Aoyama Gakuin Univ., Sch. of Sci. and Eng.)
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Journal Title;Abstracts. Symposium on Biofunctional Chemistry
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Journal Code:L0836A
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ISSN:
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VOL.13th;NO.;PAGE.16-18(1998)
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| Figure&Table&Reference; |
| Pub. Country;Japan |
| Language;Japanese |
| Abstract;The strength of hydrophobic interaction (hydrophobicity) increases with increasing, (i) carbon number of an alkyl group, (ii) temperature, and (iii) mole fraction of water in aqueous mixed solvents. The selectivity (R1=n-C4H9)-a measure of molecular recognition-in the oxidation exhibits a maximum for R2=n-C4H9 in the range of Et to n-C6H13 (R2). The selectivity (R1=p-Me2NC6H4) shows a maximum at 35.DEG.C. for R2=Ph, has a minimum at 35.DEG.C. for R2=p-MeC6H4, and, shows a sigmoid-like curve for R2=p-EtC6H4. Plots of the selectivity (R1=p-Me2NC6H4, R2=i-C5H11) in water-EtOH and water-dioxane each exhibit both a maximum and a minimum against mole fraction of water. Accordingly, these results indicate that hydrophobic interaction cannot explain precise molecular recognition in aqueous mixed solvents. (author abst.) |
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