Molecular Structure and Magnetic Properties of 1-Ethyl-2-(1-oxy-3-oxo-4,4,5,5-tetramethylimidazolin-2-yl)-3-methylimidazolium Arylcarboxylates and Other Salts
作者:Hiroyuki Hayashi、Satoru Karasawa、Noboru Koga
DOI:10.1021/jo801657a
日期:2008.11.21
molecule and converted to seven salts, [EMINN](+)[X](-) (X = I, TFSI (bis(trifluoromethanesulfonyl)imide), BPh4 (tetraphenylborate), [EMINN](+)(1-3)[BA(1-3)]((1-3)-); BA1 (benzoic acid), BA2 (terephthalic acid), and BA3 (trimesic acid), and [EMINN](+)[BANN](-); BANN (4-NN-benzoic acid)), by the ion-exchange reaction. The molecular structure of the cation units for all salts revealed by X-ray crystallography
1-乙基-2-(1-氧-3-氧代-4,4,5,5-四甲基咪唑啉-2-基)-3-甲基咪唑鎓溴化物,[EMINN](+)[Br](-),带有硝酰基硝基氧(NN)在阳离子单元中被制备为母体分子,并转化为七种盐[EMINN](+)[X](-)(X = I,TFSI(双(三氟甲磺酰基)酰亚胺),BPh4(四苯基硼酸酯) ,[EMINN](+)(1-3)[BA(1-3)]((1-3)-); BA1(苯甲酸),BA2(对苯二甲酸)和BA3(三苯甲酸),以及[ EMINN](+)[BANN](-); BANN(4-NN-苯甲酸)),通过离子交换反应。X射线晶体学揭示的所有盐的阳离子单元的分子结构是相似的,其中咪唑鎓环与NN平面之间的二面角为51-58度。在晶体结构中,[EMINN](+)[X](-)(X = Br,I,TFSI和BPh4)形成了从头到尾的二聚体,而由两个[EMINN](+)[羧酸盐](-)