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首页> 外文期刊>The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory >Study of Molecular Complex Formation between [60]Fullerene and Two Series of Donors by the NMR Method
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Study of Molecular Complex Formation between [60]Fullerene and Two Series of Donors by the NMR Method

机译:NMR法研究[60]富勒烯与两个供体的分子配合物形成

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Formation of molecular complexes between [60]fullerene and (i) a series of aromatic hydrocarbons, namely, anthrracene, acenaphthene, phenanthrene, pyrene, durene, pentamethylbenzene, and hexamethylbenzene, and (ii) a series of pyridines, namely, pyridine, 2-picoline, 3-picoline, 4-picoline, 2,6-lutidine, and 2,4,6-collidine has been studied in CCl_4 medium by NMR method. [60]Fullerene has been shown to form 1:1 molecular adducts with the above series of compounds. Formation constants (K) of the above complexes have been determined from the systematic variation of NMR chemical shifts of specific protons of the donors in the presence of C_(60). The K values of [60]fullerene complexes with pyridine, 3-picoline, and 4-picoline yield good estimates of the Hammett constant, p, for the complexation reaction.
机译:在[60]富勒烯与(i)一系列芳族烃,即蒽、,、菲,pyr,戊二烯,五甲基苯和六甲基苯之间,以及(ii)一系列吡啶,即吡啶2之间的分子配合物形成通过NMR方法在CCl_4介质中研究了-picoline,3-picoline,4-picoline,2,6-lutidine和2,4,6-collidine。 [60]富勒烯已经显示出与上述系列化合物形成1:1的分子加合物。上述配合物的形成常数(K)已根据存在C_(60)时供体特定质子的NMR化学位移的系统变化确定。 [60]富勒烯与吡啶,3-甲基吡啶和4-甲基吡啶的配合物的K值可很好地估计络合反应的Hammett常数p。

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