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参考文献:闭壳离子对:离子对溶剂中四烷基铵盐的阳离子和聚集动力学
标题:闭壳离子对:离子对溶剂中四烷基铵盐的阳离子和聚集动力学
摘要:四丁基铵离子 (1)置于cdcl3 溶液中与小阴离子 (Cl-,Bh4-) 形成紧密的离子对.这些离子对聚集作为对增加溶液浓度的响应,几乎没有温度依赖性.通过将聚集体的自扩散系数与具有相同形状和标称尺寸的内部非聚集标准四丁基硅烷 (2) 的自扩散系数进行比较来测量,最大聚集体尺寸约为四个离子对.在固定浓度的溶液中,在 1 和 Bh4-阴离子之间观测到的稳态离子间 1H{1H} Noe 的大小作为固定浓度溶液中温度的函数,通过假设与温度无关的单一聚集体尺寸,非常符合标准理论表达式. 将简化的无模型分析应用于在几个磁场强度下测量的稳态 15N{1H} Noe 和 15N T1,使用 15N 标记的 1 来获得离子聚集体重新定向相关时间的估计值.对 13C{1H} Noe 和 13C T1 的类似分析给出了...
DOI:10.1021/ja9723139
专利信息
专利号:US-5094828-A
优先权日:1990-12-31
标 题 :Synthesis of large-pore
发明人:CHU CYNTHIA T-W
权利人:MOBIL OIL CORP
摘要:This invention relates to a method for preparing large pore synthetic crystalline molecular sieve composition which may contain framework +3 valence element, e.g. aluminum, and one or more of a) +4 valence element, e.g. silicon, and b) +5 valence element, e.g. phosphorous. The method utilizes cyclohexylamine as directing agent in the forming mixture. The source of +3 valence element and, optionally +4 element is an alkoxide thereof, e.g., aluminum iso-propoxide. The resulting product may be used as a catalyst.
专利号:US-6921487-B2
优先权日:2002-08-14
标题 :Removal of zinc salts from nonaqueous synthesis solutions comprising zinc alkoxides or zinc amides
发明人:SORGER KLAS; PETERSEN HERMANN; STOHRER JUERGEN
权利人:CONSORTIUM ELEKTROCHEM IND
摘要:A process for removing zinc from organic solutions comprising zinc alkoxides or zinc amides, includes admixing the solution with an alkylating, arylating, acylating or silylating agent in the presence of a precipitating reagent having at least two nitrogen donors and subsequently removing the precipitated solid.
专利号:DE-10237274-A1
优先权日:2002-08-14
标题:Process for the separation of zinc salts from zinc alcoholates or non-aqueous synthesis solutions containing zinc amides
专利号:US-2004089613-A1
优先权日:2002-08-14
标 题:Removal of zinc salts from nonaqueous synthesis solutions comprising zinc alkoxides or zinc amides
专利号:DE-10237274-B4
优先权日:2002-08-14
标题 :Process for the separation of zinc salts from zinc alcoholates or non-aqueous synthesis solutions containing zinc amides
专利号:ES-2236653-T3
优先权日:2002-08-14
标题:PROCESS FOR SEPARATION OF CINC SALTS FROM NON-WATERY SYNTHESIS SOLUTIONS CONTAINING CINC ALCOHOLATES OR CINC AMIDURES.