Di-, tri-, pseudo-di- and pseudo-tetra-acetylenic polymers of platinum: Synthesis, characterization and optical spectra
作者:Jack Lewis、Muhammad S. Khan、Ashok K. Kakkar、Brian F.G. Johnson、Todd B. Marder、Helen B. Fyfe、Felix Wittmann、Richard H. Friend、Ann E. Dray
DOI:10.1016/0022-328x(92)80033-t
日期:1992.2
Reactions of Me3Sn-CC-(CC-)m-CC-SnMe3 (m= 0, 1) (1, 2), Me3Sn-(CC)m-p-C6H4-(CC)m-SnMe3 (m = 1, 2) (3, 4) with the platinum metal halide complexes, [Pt(XnBu3)2Cl2] (where X = P (5), As (6)) afford high molecular weight polymeric species, [-Pt(XnBu3)2-CC-(CC)m-CC-]n (7-10), and [-Pt(PnBu3)2-(CC)m-p-C6H4-(CC)m-]n (11, 12) in excellent yields. Investigations of the optical absorption and photoluminescence
的反应我3的Sn-CC-(CC-)米-CC-SnMe 3(米= 0,1)(1,2)中,Me 3 Sn的(CC)米- p - ç 6 ħ 4 - (CC)米-SnMe 3(米= 1,2)(3,4与铂金属卤化物复合物),[PT(X ñ卜3)2氯2 ](其中X = P (5),As(6))提供高分子量的聚合物,[-Pt(X nBu 3)2- CC-(CC)m- CC-] n(7-10)和[-Pt(P n Bu 3)2-(CC)m - p -C 6 H 4-(CC)m- ] n(11,12)的良率。这些配合物的光吸收和光致发光光谱的研究表明,通过链上金属位点扩展了π电子共轭,三乙炔的π-π*能隙比二乙炔聚合物的配合物低。在吸收和发射方面都观察到与-CC-拉伸频率相关的良好解析的振动子结构,表明二乙炔和三乙炔聚合物具有很强的电子-声子耦合。