Increase in coordination number of lanthanide complexes with 2,2′-bipyridine and 1,10-phenanthroline by using β-diketonates with electron-withdrawing groups
作者:Dave R. van Staveren、Gerard A. van Albada、Jaap G. Haasnoot、Huub Kooijman、Anna Maria Manotti Lanfredi、Peter J. Nieuwenhuizen、Anthony L. Spek、Franco Ugozzoli、Thomas Weyhermüller、Jan Reedijk
DOI:10.1016/s0020-1693(01)00334-6
日期:2001.4
Abstract The coordination chemistry of Ln(hfpd)3 (hfpd=1,1,1,5,5,5-hexafluoropentane-2,4-dionate) with phen and bpy depends on the size of the Ln3+ ion and on the used solvent. The complexes [Er(hfpd)3(phen)] (7) and [Er(hfpd)3(bpy)] (14) were obtained from the synthesis of Er(CF3SO3)3 with Hhfpd, CsOH and either 1,10-phenanthroline or 2,2′-bipyridine in acetonitrile. The structure of 7 was determined
摘要Ln(hfpd)3(hfpd = 1,1,1,5,5,5-六氟戊烷-2,4-二酸酯)与phen和bpy的配位化学取决于Ln3 +离子的大小和所用的溶剂。[Er(hfpd)3(phen)](7)和[Er(hfpd)3(bpy)](14)的配合物是由Er(CF3SO3)3与Hhfpd,CsOH和1,10-菲咯啉或2,2'-联吡啶在乙腈中。通过X射线晶体学确定7的结构。根据化学计量和光谱性质,类似的反应但与其他多种镧系元素在甲醇中进行,导致分离出五种不同类型的配合物。稍后在镧系元素中包含元素[Ln(hfpd)3(bpy)](对于Ln = Dy,Ho和Yb)和[Ln(hfpd)3(phen)](对于Ln = Tb) ,Ho和Yb),就像7一样,而对于早期的镧系元素,[Ln(hfpd)3(bpy)2](对于Ln = La和Sm)和[Ln(hfpd)3(phen)2](对于Ln = La,分离出C