• Elastomers and Composites
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• v.54 no.3
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• pp.252-256
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• 2019

Fullerene oxide[$C_{60}(O)_n$, ($n{\geq}1$)] was synthesized by dissolving fullerene[$C_{60}$] and 3-chloroperoxybenzoic acid in toluene under refluxing condition for 5 h. Hybrid fullerene oxide-silver nanoparticle composites were synthesized by dissolving fullerene oxide and silver nitrate[$AgNO_3$] in diethylene glycol under ultrasonic irradiation for 3 h. The synthesized hybrid nanocomposites were characterized by X-ray diffraction, scanning electron microscopy, and ultraviolet-visible[UV-vis] spectroscopy. The catalytic activity for the reduction of various nitroanilines[NAs] was identified by UV-vis spectrophotometer. The efficiency of the catalytic reduction by the synthesized hybrid nanocomposites has an order of 4-NA > 2-NA > 3-NA.

• Journal of the Korean Chemical Society
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• v.17 no.6
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• pp.391-394
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• 1973

A semiempirical molecular orbital theory which is known as extended H ckel theory is applied to explain the sweet taste mechanism of nitroaniline, 1-methoxy-4-nitroaniline, and 1-ethoxy-4-nitroaniline which has different sweetness respectively. In this paper, the assumption is made that the nitroaniline is coplanar. The relationship between charge density and sweetness has been calculated according to the geometrical rotation of the orthosubstitute of nitroanilines. It has been shown that the calculated results are consistent with the experimental order of the relative sweetness.