摘要
采用对掺入Ｌａ_２Ｏ_３的石墨棒原位活化并结合交换电极回放方法制备了产率较高的金属富勒烯，并用甲苯高温热提取的方法有效地提取出Ｌａ＠Ｃ_（２ｎ），其中Ｌａ＠Ｃ_（７４）为可溶性金属富勒烯增加了新成员．同时，首次采用解吸电子轰击质谱对提取物进行了表征，讨论了提取物的ＥＳＲ谱．
The synthesis for lanthanofullerenes was studied by activating the La_2O_a containing graphite rod in situ and back-burning the carbide-rich cathode deposite, La@C_(2n) are efficiently extracted in high temperature toluene, among them, La@C_(74) as a new species is added into the soluble lanthanofullerenes, The toluene extraction is first characterized by desorption electron impact(DEI)mass spectrometry, The ESR spectrum of the extraction at room temperature is also discussed.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
1996年第5期690-692,共3页
Chemical Journal of Chinese Universities
基金
国家自然科学基金
中国科学院稀土物理与化学开放实验室资助
关键词
金属
富勒烯
ESR
镧
DEIMS
Lanthanofullerenes La@C_(2n)
High temperature toluene extraction
DEI MS
ESR spectrum
