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化学学报
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化学学报 ›› 2003, Vol. 61 ›› Issue (11): 1803-1808. 上一篇    下一篇

研究论文

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

贺海鹰;赵成学   

  1. 上海交通大学化学系
  • 发布日期:2003-11-15

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

He Haiying;Zhao Chengxue   

  1. Department of Chemistry, Shanghai Jiaotong University
  • Published:2003-11-15

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变温ERP研究揭示氟烷基化富勒烯C_(60)(R_f)_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-C_(60)(R_f)_n的居里温度高达190K[R_f = C_3F_7，H（CF_2）_4]。而非氟烷基化络合物TDAE-C_(60)的相应值仅为16.1K。 这种铁磁性可能是络合物分子中氟烷基化富勒烯多价阴离子基在相应居里温度下具 有某种有序排列的缘故。

关键词: 富勒烯, 乙烯 P, 氨基化物, 电荷转移, 顺磁共振

Variable temperature EPR studies show that the CT-complexes of TDAE [ tetrakis (iV, N- dimethyl) -aminoethylene]-C_(60)(R_f)_n [R_f = C_3F_7, H(CF_2)_4] exhibit good stability and very high Curie temperature up to 190 K (16.1 K for TDAE-Cgo 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.

Key words: fullerene, ETHYLENE P, AMIDE, CHARGE TRANSFER, PR

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