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Âé·³´ó¼Ò°ïæ·ÒëÒ»ÏÂ!Óнð±Ò½±ÀøÑ½£¡ NamboodiriµÈ²ÉÓó¬Éù²¨×÷ΪÄÜÁ¿Ô´£¬ÔÚÃܱÕÌåϵ·ÇÈܼÁÌõ¼þϺϳÉÀë×ÓÒºÌå¡£ËûÃÇ·¢ÏÖ±´úÎïÓë¼×»ùßäßòµÄ·´Ó¦»îÐÔ²»Í¬£ºI>Br>C1¡£äåºÍµâµÄ±´úÎïÔÚÊÒÎÂÏÂ0.5¡«2 h¼´¿ÉÍê³É·´Ó¦£¬ÊÕÂʶ¼¸ßÓÚ90£¥£¬ÂÈ»¯Îï·´Ó¦ÔòÐèÒª¼ÓÈȺͽϳ¤Ê±¼äµÄ³¬Éù²¨×÷Óá£LevequeµÈÀûÓó¬Éù²¨ÄܼõСҺÌåÖÐÐü¸¡Á£×ӵijߴ磬Ìá¸ßÒìÏà·´Ó¦ËÙÂʵÄÌØµã£¬Ñо¿ÁË[bmim]C1ÓëNH4BF4£¬NH4CF3SO3£¬NH4PF6µÈÑεÄÀë×Ó½»»»·´Ó¦¡£´ÅÁ¦½Á°èÒ»°ãÐèÒª5¡«8 h£¬¶ø³¬Éù²¨×÷ÓÃÖ»Ðè1 h£¬´ó´ó¼õÉÙÁË·´Ó¦Ê±¼ä¡£Â¬ÔóÏàµÈÔÚ·ÖÎößäßòÀàÀë×ÓÒºÌåµÄÖÆ±¸·´Ó¦»úÀíºÍºÏ³ÉʵÑéµÄ»ù´¡ÉÏ£¬²ÉÓÃ΢²¨·øÉäµÄ·½·¨ÒÔNÒ»¼×»ùßäßòΪÔÁÏ£¬ºÏ³ÉÁËÂÈ»¯1-¶¡»ù-3-¼×»ùßäßòÀë×ÓÒºÌå(1-butyl-3-methylimidazole chloride)¡£ [ Last edited by lirenxing on 2008-12-26 at 08:57 ] |
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| Namboodir, etc. synthesize ionic liquids on closed non-solution conditions using ultrasonic as energy source. They find the reactivities of halogen compounds with methyl imidazole are different: I>Br>Cl. Bromine and iodine substituted compounds finidsh the reactions at room temperature for about 0.5~2 hrs and the yields are more than 90%. Otherwise chloride substituted compounds need more time and heat with ultrasonic. Leveque, etc. use ultrasonic which can reduce the size of suspended particles in solution and increase the rate of heterogeneous reaction to study ion-exchange reactions of [bmim]C1 and NH4BF4£¬NH4CF3SO3£¬NH4PF6 and so on. It takes 5~8 hrs for magnetic stirring but 1hrs for ultrasonic. Luze Xiang, etc. synthesize 1-butyl-3-methylimidazole chloride ionic solution N-methyl imidazole as materials with microwave radiation baesd on prepared reactive mechanism and snthetic experiments of imisazole analogues. |
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