Parallel Synthesis of Photoluminescent π-Conjugated Polymers by Polymer Reactions of an Organotitanium Polymer with a Titanacyclopentadiene Unit
Parallel Synthesis of Photoluminescent π-Conjugated Polymers by Polymer Reactions of an Organotitanium Polymer with a Titanacyclopentadiene Unit
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DOI：
10.1002/marc.201400667
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发表时间：
2015-04-01
影响因子：
4.6
通讯作者：
Tomita, Ikuyoshi
中科院分区：
文献类型：
--
作者：
Matsumura, Yoshimasa;Fukuda, Katsura;Tomita, Ikuyoshi
由2,7-二乙基芴衍生物与低价钛配合物反应得到的具有钛环戊二烯单元的区域规则有机金属聚合物，与三种亲电试剂（即一氯硫、盐酸和二氯苯基膦）反应，得到既有芴又有主链上钛环转化而产生的构建单元的共轭聚合物。例如，一种含磷聚合物，其数平均分子量估计为5000，产率为50%。所制得的噻吩、丁二烯和含磷聚合物表现出高效的光致发光（PL），其发射颜色分别为蓝色、绿色和黄色。例如，含磷聚合物呈现黄色PL，发射最大值（E-max）为533 nm，量子产率（phi）为0.37。
A regioregular organometallic polymer with titanacyclopentadiene unit, obtained by the reaction of a 2,7-diethynylfluorene derivative and a low-valent titanium complex, is subjected to the reaction with three kinds of electrophiles (i.e., sulfur monochloride, hydrochloric acid, and dichlorophenylphosphine) to give -conjugated polymers possessing both fluorene and building blocks originated from the transformation of the titanacycles in the main chain. For example, a phosphole-containing polymer whose number-average molecular weight is estimated as 5000 is obtained in 50% yield. The obtained thiophene, butadiene, and phosphole-containing polymers exhibit efficient photoluminescence (PL) with emission colors of blue, green, and yellow, respectively. For example, the phosphole-containing polymer exhibits yellow PL with an emission maximum (E-max) of 533 nm and a quantum yield (phi) of 0.37.