Changes in major charge transport by molecular spatial orientation in graphene channel field effect transistors
Changes in major charge transport of graphene channel transistors in terms of the spatial orientation of adsorbed functional molecules were demonstrated. In contrast to the horizontally (physically) bound molecules, the vertically (chemically) bound molecules did not change major charge carriers of graphene channels, revealing the molecular orientation-dependent doping effects.
Unusually stable, versatile, and pure arenediazonium tosylates: Their preparation, structures, and synthetic applicability
(Graph Presented) A new, simple, and effective method for the diazotization of a wide range of arylamines has been developed by using a polymer-supported diazotization agent in the presence of p-toluenesulfonic acid. Various pure arenediazonium tosylates with unusual stabilities can be easily prepared by this method. As a result, these salts are useful and versatile substrates for subsequent transformations, such as halogenation and Heck-type reactions. The unusual stabilities of arenediazonium tosylates are also preliminarily discussed with their X-ray structures.
Filimonov, Victor D.,Trusova, Marina,Postnikov, Pavel,Krasnokutskaya, Elena A.,Lee, Young Min,Hwang, Ho Yun,Kim, Hyunuk,Chi, Ki-Whan
supporting information; experimental part
p. 3961 - 3964
(2009/05/30)
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