二茂铁基席夫碱及盐的合成与导电性能  

Synthesis and conductivity of ferrocenyl Schiff base and its salt

作　　者：刘卫军[1] 熊国宣[1] 黄海清[1] 

机构地区：[1]东华理工学院化学工程与工艺系,江西抚州344000

出　　处：《化工学报》2007年第5期1331-1336,共6页CIESC Journal

摘　　要：中性条件下，以二茂铁甲醛和对苯二胺为原料，合成了二茂铁基席夫碱，考查了反应温度和时间对产率的影响，并测得其本征态室温电导率σ=1．26×10^-3 S·cm^-1。利用Fe^3＋、Al^3＋、Ti^3＋盐对二茂铁基席夫碱进行了掺杂，探讨了掺杂量和掺杂温度对产物室温电导率的影响，研究了掺杂产物电导率与温度的变化关系，并用红外光谱、紫外光谱和电子探针对产物结构和组成进行了表征。结果表明：经金属盐掺杂后，电导率可提高4～5个数量级，根据Arrhenius曲线得到了化合物的电活化能在0．09～1．54eV范围内，表明了它们具有较好的半导体性能。Ferrocenyl Schiff base was synthesized with ferrocenecarboxaldehyde and p-phenylenediamine as precursors under neutral condition. The effects of the temperature and time of reaction on the yield were investigated, and the room-temperature electric conductivity of the intrinsic sample was 1.26 × 10^-9 S ·cm^-1. The doping of ferrocenyl Schiff base with Fe^3＋ , Al^3＋ and Ti^2＋ salt, and the effects of the dosage of doping agent and doping temperature on the room-temperature electric conductivity of samples were discussed. In addition, the temperature dependence of electric condu their structures and compositions were characterized with infrared electron probe X-ray microanalyser. The results showed that the elec ctivity of samples were spectrum, ultraviolet tric conductivity of the studied, and spectrum and sample could increase 4-5 by orders of magnitude after doping with metallic salt. The electrical activation energies of the complexes in the range of 0.09 -1.54 eV were calculated from Arrhenius plots, indicating their favourable semiconducting behavior.

关 键 词：二茂铁基席夫碱 掺杂 电导率 

分 类 号：TN304.2[电子电信—物理电子学]