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[ Last edited by 0733110117 on 2011-6-7 at 20:46 ]

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sltmac(½ð±Ò+1): лл½»Á÷~ 2011-06-07 22:25:46
0733110117(½ð±Ò+30, ·­ÒëEPI+1): ÄãÕæÊÇÌ«À÷º¦ÁË£¡·Ç³£Ð»Ð»ÄãµÄ°ïÖú~£¡24Сʱºó£¬Èç¹ûÀÏʦûʲôÒâ¼ûÁË£¬ÎÒ°ÑʣϵÄÔÙ¸øÄã~£¡ 2011-06-07 23:19:22
sltmac(½ð±Ò+20): 3Q 2011-06-10 15:35:02
This work mainly investigates synthetic methods of cucurbituril under different conditions and preliminary exploration of synthesis of hydroxylcucurbituril and its properties. First, glycoluril was prepared with urea and glyoxal under acidic conditions. Then cucurbituril was obtained through dilute sulfuric acid catalysis, concentrate sulfuric acid catalysis and concentrate sulfuric acid-dehydration with glycoluril and formal as substrates. Cucurbituril was then heated with potassium persulfate, and then treated with alkaloid solutions, acetone and dilute water, respectively. In this way, hydroxylcucurbituril was obtained. Compounds were characterized with FT-IR. Results from TLC and HPLC jointly indicated high ratio of objective compounds with high purity. Effects of hydroxylcucurbituril on fluorescein had been evaluated with fluorescence spectroscopy, electrochemical analysis. Research indicated that with increase of hydroxylcucurbituril, fluorescence intensity of inclusion complex of hydroxylcucurbituril and fluorescein tended to decrease.
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