首页> 外文会议>Fullerenes and Nanotubes: The Building Blocks of Next Generation Nanodevices: Fullorenes >CHEMICAL REDUCTION OF FULLERENES C_(60) AND C_(70) EMBEDDED IN CAST FILMS OF CATIONIC LIPIDS
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CHEMICAL REDUCTION OF FULLERENES C_(60) AND C_(70) EMBEDDED IN CAST FILMS OF CATIONIC LIPIDS

机译:阳离子脂质铸膜中富勒烯C_(60)和C_(70)的化学还原

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Chemical generation of fullerene radical anions, C_(60)~(·-) and C_(70)~(·-) using a reducing reagent, Na_2S_2O_4, at thin films of lipids (amphiphiles) containing C_(60) or C_(70) were investigated. Visible-near IR spectra revealed that C_(60)~(·-) and C_(70)~(·-) were chemically produced at cationic lipid matrix films in aqueous media. The absorption maxima appeared at 1076-1078 nm and 1376-1378 nm for C_(60)~(·-) and C_(70)~(·-), respectively. On the contrary, C_(60)~(·-) and C_(70)~(?-) were not detected when neutral and anionic lipids were used instead of the cationic lipids. The chemical reduction for films of a single component of C_(60) and of C_(70) with Na_2S_2O_4 was also unable to detect. All results suggest that the charge of the matrix lipids and the formed microenvironments in the lipid films play important role for the generation of C_(60)~(·-) and C_(70)~(·-) at film states in aqueous media.
机译:使用还原剂Na_2S_2O_4在含有C_(60)或C_(70)的脂质(两亲物)薄膜上化学生成富勒烯自由基阴离子C_(60)〜(·-)和C_(70)〜(·-) )进行了调查。可见-近红外光谱表明,C_(60)〜(·-)和C_(70)〜(·-)是在水性介质中的阳离子脂质基质薄膜上化学生成的。 C_(60)〜(·-)和C_(70)〜(·-)的最大吸收出现在1076-1078 nm和1376-1378 nm。相反,当使用中性和阴离子脂质代替阳离子脂质时,未检测到C_(60)-(·-)和C_(70)-(α--)。用Na_2S_2O_4也无法检测到C_(60)和C_(70)单一成分的薄膜的化学还原。所有结果表明,脂膜中基质脂质的电荷和形成的微环境对于水性介质中膜状态下C_(60)〜(·-)和C_(70)〜(·-)的生成起重要作用。 。

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