Organic-metal Conjugation System: Preparation, Structure and Chemical and Physical Properties.

我们制备了新的π共轭多烯，Ar-(CH=CH)_n-Ar，或在多烯两端或聚合物主链中含有螯合单元的线性聚合物。π共轭有机化合物与各种过渡金属配合物反应形成有机-无机杂化共轭体系。例如，四烯（n=4）的二茂铁（Fc）配合物Fc-(CH=CH)_4-Fc与含环戊二烯基（cp）配体的钌化合物络合形成钌-铁四核配合物，其中两个Ru-Cp片段以s-顺式配位方式配位到四烯主链上。通过钯催化缩聚，制备了由N， N'-双（水杨基）-1,2-苯二胺（salophen）单元和镍配合物单元组成的共轭N， N'-双（水杨基）-1,2-苯二胺（salophen）单元组成的π共轭聚（乙烯基）s。无镍和含镍聚合物均具有电化学活性，并通过其光谱电化学数据显示出电致变色特性。

We have prepared newly πconjugated polyenes, Ar-(CH=CH)_n-Ar, or linear polymers containing chelating units at both ends of the polyene or in the polymer backbone. The π-conjugated organic compounds reacted with various transition metal complexes to give organic-inorganic hybrid conjugation system. For example, Ferrocenyl (Fc) complex of tetraene (n=4), Fc-(CH=CH)_4-Fc, made complexation with a ruthenium compound bearing a cyclopentdadienyl (cp) ligand to afford ruthenium-iron tetranuclear complex, in which two Ru-Cp fragments coordinated to the tetraene backbone in s-cis coordination mode. π-Conjugated poly(aryleneethynylene)s consisting of chelating N, N'-bis(salicylidene)-1,2-phenylenediamine (salophen) units and the nickel complex units were prepared in high yields by the palladium-catalyzed polycondensation of the corresponding monomers. Both the Ni-free and Ni-containing polymers were electrochemically active, and showed electrochromic properties revealed by their their spectro-electrochemical data.