A Simple and Effective Synthesis of Aryl Azides via Arenediazonium Tosylates
摘要:
Aromatic azides are formed in high yield from arenediazonium tosylates and sodium azide in water at room temperature or from aromatic amines via diazotization in the presence of p-TsOH. Besides being experimentally simple, these methods do not require any metal catalysis and provide clean products without purification.
Changes in major charge transport by molecular spatial orientation in graphene channel field effect transistors
作者:Misook Min、Sohyeon Seo、Junghyun Lee、Sae Mi Lee、Eunhee Hwang、Hyoyoung Lee
DOI:10.1039/c3cc42591f
日期:——
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.