نتایج جستجو برای: nanographene
تعداد نتایج: 237 فیلتر نتایج به سال:
Strong dense many-spin interactions have been proposed to organize novel orbital dynamics (the Little Effect) for novel chemical and catalytic phenomena. The recent determinations of the relativistic and quantum Hall effects of carriers in graphene under strong magnetic confinement have substantiated the Little Effect. Moreover such nonclassical phenomena under the stronger magnetic confinement...
Hexa-peri-hexabenzocoronides (HBC) was successfully used as a model system for investigating the complex mechanism of the reductive functionalization of graphene. The well-defined molecular HBC system enabled deeper insights into the mechanism of the alkylation of reductively activated nanographenes. The separation and complete characterization of alkylation products clearly demonstrate that na...
Klaus Müllen's works cover a broad range of science, ranging from NMR/ESR spectroscopy or electrochemistry to polymer and nanoscience. After the Chemistry diploma in 1969 (early work with Emanuel Vogel/Cologne University), he received his doctorate 1971 at University Basel (working Fabian Gerson) on investigations bridged annulenes. During postdoctoral period ETH Zurich Jean François Michel Oth...
We report a detailed investigation by Raman spectroscopy of the holey nanographene C216, hexagon-shaped disk with armchair edges (1.4 nm long), from which central aromatic ring is missing. Density functional theory (DFT) calculations allow to assign main features spectra that have been recorded several excitation wavelengths. In spectra, we observe signatures hole in structure, G and D modes, a...
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