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ELECTRICAL AND MAGNETIC PROPERTIES OF CONJUGATED SCHIFF BASE POLYMERS

机译:共轭席夫基聚合物的电和磁性能

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摘要

Two new conjugated poly-Schiff bases (PPpP and PPmP) were synthesized by polycondensation of p-phenylene diamine or m-phenylene diamine with 2,6-pyridine dicarboxaldehyde. PPpP and PPmP can form charge transfer complexes with iodine. Maximum conductivity of PPpP-iodine complex at room temperature is 10(-6) S/cm, which is 2 orders of magnitude higher than that of PPmP-iodine complex. Electronic spin resonance measurements discovered that there are stable radicals in both charge transfer complexes; and g value, line width, and spin concentration depend on doping degree. Magnetic susceptibility of charge transfer complexes of PPmP-iodine is composed of Curie magnetic susceptibility (chi(C)) and Pauli magnetic susceptibility (chi(P)). Its Curie constant (C), Curie spin concentration (N-C), and density of state at the Fermi level also depend on doping degree. (C) 1996 John Wiley & Sons, Inc. [References: 16]
机译:通过将对苯二胺或间苯二胺与2,6-吡啶二甲醛进行缩聚反应,合成了两种新的共轭席夫碱(PPpP和PPmP)。 PPpP和PPmP可以与碘形成电荷转移复合物。室温下PPpP-碘复合物的最大电导率为10(-6)S / cm,比PPmP-碘复合物的电导率高2个数量级。电子自旋共振测量发现,两种电荷转移复合物中均存在稳定的自由基。 g值,线宽和自旋浓度取决于掺杂程度。 PPmP-碘的电荷转移复合物的磁化率由居里磁化率(chi(C))和Pauli磁化率(chi(P))组成。它的居里常数(C),居里自旋浓度(N-C)和费米能级的状态密度也取决于掺杂程度。 (C)1996 John Wiley&Sons,Inc. [参考:16]

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