Induction of Columnar Mesomorphism in Tetracoordinated Ionic Silver(
<scp>I</scp>
) Complexes Based on Chelate 4,4'‐Disubstituted 2,2'‐Bipyridines
作者:Daniela Pucci、Giovanna Barberio、Anna Bellusci、Alessandra Crispini、Massimo La Deda、Mauro Ghedini、Elisabeta Ildyko Szerb
DOI:10.1002/ejic.200500002
日期:2005.6
nonmesomorphic 4,4'-disubstituted 2,2'-bipyridines, Ln, yielded a series of bis-chelate ionic silver complexes [Ag(Ln)2]X. Complexation induced columnar mesomorphism in all the silver(I) tetra-branched bipyridine derivatives and the role of the counterion proved to be crucial in the generation of different symmetries of the mesophase. Remarkably, all silver(I) complexes exhibit emission at room temperature
三氟甲磺酸银 (AgOTf) 和十二烷基硫酸银 (AgDOS) 与两种非介晶 4,4'-二取代 2,2'-联吡啶 Ln 反应生成一系列双螯合离子银络合物 [Ag(Ln)2] X。所有银 (I) 四支化联吡啶衍生物中的络合诱导柱状介晶现象,并且证明反离子的作用在中间相的不同对称性的产生中至关重要。值得注意的是,所有的银 (I) 配合物在室温下在溶液和固态下都表现出发射。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005)