Phenylacetylene polymerisation mediated by cationic cyclometallated palladium(<scp>ii</scp>) complexes bearing benzylidene 2,6-diisopropylphenylamine and its derivatives as ligands
作者:M. Cassiem. Joseph、Andrew J. Swarts、Selwyn F. Mapolie
DOI:10.1039/c8dt02728e
日期:——
A series of novel cationic palladacycle complexes bearing benzylidene-2,6-diisopropylphenylamine derivatives as ligands and with the general formula [Pd(MeCN)(L)(R-C6H3)CHN2,6-iPr2-C6H3}][B(3,5-(CF3)2-C6H3)] (R = H, Cl, Br, F, OMe and L = 1,3,5-triaza-7-phosphaadamantane (PTA), tricyclohexylphosphine (PCy3) and triphenylphosphine (PPh3)) were prepared and characterized by a range of analytical techniques
一系列带有亚苄基-2,6-二异丙基苯基胺衍生物作为配体且通式为[Pd(MeCN)(L)(RC 6 H 3)CH N 2,6- i Pr 2 -C 6的新型阳离子palladacycle配合物H 3 }] [B(3,5-(CF 3)2 -C 6 H 3)](R = H,Cl,Br,F,OMe和L = 1,3,5-triaza-7-phosphaadamantane( PTA),三环己基膦(PCy 3)和三苯膦(PPh 3))的制备方法,并通过一系列分析技术进行了表征。发现这些阳离子的palladacycle配合物是用于苯乙炔聚合的活性预催化剂。该元的环金属化的环上的-取代被发现有关于该复合物,其包含吸电子取代基的催化剂的性能有显着影响,被认为是最活跃的在聚合过程。此外,增加膦配体的空间体积导致产生更高分子量的聚苯乙炔(PPA)。在25进行的聚合反应℃下,得到的两个的混合物CI S-transoidal和TRAN