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  • structure dependent thermo-reversible dissolution of organic molecules based on b-cyclodextrin complexes and its application in preparetive-scale separation of xylene isomers

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    • تاریخ ارائه: 1392/07/24
    • تاریخ انتشار در تی پی بین: 1392/07/24
    • تعداد بازدید: 958
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     this paper describes an interesting structure dependent thermo-reversible dissolution of organic molecules in the presence of β-cyclodextrin (β-cd) in n, n-dimethyllformamide (dmf). β-cd could influence the solubility of dissolved organic molecules, resulting in the precipitation of organic molecule–β-cd complex from the original transparent solution as the temperature is increasing, while the precipitate will be dissolved again upon cooling. different organic molecule–β-cd complex precipitates corresponded to different turbid temperatures (tt). no precipitates were observed solely for either organic molecules or β-cd in dmf when the temperature increased, indicating the structure dependent recognition of β-cd to organic molecules. this molecular recognition behavior had been successfully applied in the separation of xylene isomers in preparative scale.

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