π-Conjugated poly(1,10-phenanthroline-3,8-diyl), PPhen, and its 5,6-dialkoxy derivatives, PPhen(5,6-OR)s, have been synthesized by using an organometallic polycondensation with a zerovalent nickel complex. They had average molecular weights of 4300−6800. PPhen had a stiff structure, as revealed by a light scattering method, and exhibited a strong dichroism in UV−vis absorption and photoluminescence. PPhen(5,6-OR)s formed an end-to-end packing assembly assisted by the side chain crystallization of the OR groups. PPhen and PPhen(5,6-OR)s were susceptible to chemical and electrochemical reduction, and the reduced state showed certain stability toward oxygen in air. The π-conjugated polymers underwent quantitative complex formation with [Ru(bpy)₂]²⁺. Introduction of two more imine nitrogens in the repeating unit of PPhen enhanced much the electron accepting property of PPhen, and n-doping of the obtained polymer took place at E_pc of −1.38 V vs Ag⁺/Ag.

中文翻译：

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聚（1,10-菲咯啉-3,8-二基）及其衍生物。制备，光学和电化学性质，固体结构及​​其金属配合物

π共轭聚（1,10-菲咯啉-3,8-二基）PPhen及其5,6-二烷氧基衍生物PPhen（5,6-OR）s是利用零价的有机金属缩聚反应合成的镍配合物。他们的平均分子量为4300-6800。如通过光散射法所揭示的那样，PPhen具有坚硬的结构，并且在UV-vis吸收和光致发光方面表现出很强的二色性。PPhen（5,6-OR）s通过OR基团的侧链结晶形成了一个端到端的组装组件。PPhen和PPhen（5,6-OR）s易于化学和电化学还原，并且还原态对空气中的氧气显示出一定的稳定性。π共轭聚合物与[Ru（bpy）₂ ] ²⁺形成定量络合物。在PPhen的重复单元中再引入两个亚胺氮大大提高了PPhen的电子接受性能，所得聚合物的n-掺杂在相对于Ag ⁺ / Ag的E _pc为-1.38 V下发生。