منابع مشابه
The Nitration of Monoalkyl Benzene and the Separation of its Isomers by Gas Chromatography
Di dalam tindakbalas penitration, ion nitronium, N0 2+, dipercayai sebagai e/ektrofii penyerang. Bila tindakbalas ini dilakukan terhadap sebatian bergantian benzena monoalkil, kumpulan gantian ini memainkan peranan yang penting di dalam menentukan hasil yang akan didapati. Ini juga bergantung kepada cara bagaimana penitratan dilakukan. Lapuran ini ialah mengenai cara bagaimana peratusan isomeri...
متن کاملPolytrifluoromethylation versus polyfluorination of the isomers of Kekulé benzene and phenol: a theoretical study.
The study of the polyfluorination and polytrifluoromethylation effects on electronic structure and intrinsic acidities has been performed using DFT B3LYP and NBO calculations for the valence isomers of benzene and phenol, i.e., the structures of prismane, benzvalene, Kekulé, and Dewar systems. Also the isodesmic reaction analysis approach to estimate the effects of the substituents on the acidi...
متن کاملInhibition of Growth by Benzene Hexachloride Isomers and Protective Effect of Glucose as Measured by Cell Counting Technique.
The purpose of this study is to evaluate the effects of benzene hexachloride isomers on root growth and the antagonism of these effects by selected chemical compounds. Interest has developed in gamma benzene hexachloride because it is highly toxic to insects (40). Five isomers of benzene hexachloride have been isolated (19) and the structural properties of most of them are well understood (40)....
متن کاملSelf-Assembly of Benzene-Dicarboxylic Acid Isomers at the Liquid Solid Interface: Steric Aspects of Hydrogen Bonding
We compare the self-assembly of the various isomers of benzene-dicarboxylic acids at the interface between solution and graphite substrate. In the case of planar benzene-dicarboxylic acids it was possible to observe long-range ordered monolayers by STM. However, no ordered adsorption was observed for the nonplanar 1,2-benzene-dicarboxylic acid. By means of a control experiment with 1,2,4,5-benz...
متن کاملElementary reactions of the phenyl radical, C6H5, with C3H4 isomers, and of benzene, C6H6, with atomic carbon in extraterrestrial environments
Binary collisions of ground state carbon atoms, C(3P j), with benzene, C6H6(XA1g), and of phenyl radicals, C6H5(XA1), with methylacetylene, CH3CCH(XA1), were investigated in crossed beam experiments, ab initio calculations, and via RRKM theory to elucidate the underlying mechanisms of elementary reactions relevant to the formation of polycyclic aromatic hydrocarbons (PAHs) in extraterrestrial e...
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ژورنال
عنوان ژورنال: Journal of Chemical Education
سال: 1992
ISSN: 0021-9584,1938-1328
DOI: 10.1021/ed069p859.2