氟烷基化C_(60)与四(N,N-二甲基)氨基乙烯电荷转移复合物磁性的EPR研究  

Charge Transfer Complexes TDAE-C_(60)(R_f)_n ──Synthesis and EPR Magnetic Studies

作　　者：贺海鹰[1] 赵成学[1] 

机构地区：[1]上海交通大学化学系,上海200240

出　　处：《化学学报》2003年第11期1803-1808,共6页Acta Chimica Sinica

基　　金：国家自然科学基金 (No.2 9972 0 31 );博士点基金 (No.2 0 0 2 0 2 4 80 0 3)资助项目

摘　　要：变温EPR研究揭示氟烷基化富勒烯C60 (Rf) n 与四 (N ,N 二甲基 )氨基乙烯 (TDAE)间稳定的电荷转移络合物TDAE C60 (Rf) n 的居里温度高达 190K [Rf=C3 F7,H(CF2 ) 4 ] .而非氟烷基化络合物TDAE C60 的相应值仅为 16.1K .Variable temperature EPR studies show that the CT-complexes of TDAE [tetrakis ( N,N-dimethyl)-aminoethylene]-C-60(R-f)(n) [R-f = C3F7, H(CF2)(4)] exhibit good stability and very high Curie temperature up to 190 K (16.1 K for TDAE-C-60 complex). It is possible that multi-radical anions may be formed during the complexation and the ordered array of their spins at relatively much higher Curie temperature may be the origin of the ferromagnetism for TDAE-C-60(R-f)(n).

关 键 词：氟烷基化富勒烯 C60 四(N N-二甲基)氨基乙烯 电荷转移复合物 磁性 EPR 顺磁共振 铁磁体 

分 类 号：O621.13[理学—有机化学]