Comparison of the bond lengths for the lanthanide complexes of tripodal heptadentate ligands

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• 作者：Kanesato ; Masatoshi ; Mizukami ; Shin ; Houjou ; Hirohiko ; Tokuhisa ; Hideo ; Koyama ; Emiko ; Nagawa ; Yoshinobu
• 关键词：Lanthanide complexes ; Yttrium complexes ; Crystal structures ; Tripodal ligand ; Bond lengths for complexes
• 刊名：Journal of Alloys and Compounds
• 出版年：2004
• 期刊代码：45_09258388
• 类别：ms
• 出版时间：July 14, 2004
• 卷：374
• 期：1-2
• 页码：307-310
• 文件大小：115 K

摘要

The preparation and characterization of Ln(III) complexes (Ln=Sm, Yb) of tripodal heptadentate ligand trensal, tris[2-(salicylideneamino)ethyl]amine (H₃L¹) have been studied. The molecular structures of [LnL¹] were determined by X-ray structural analysis; these are heptadentate complexes in which the metal ions are coordinated by the three oxygen atoms and the four nitrogen atoms. [LnL¹] is a novel example because the coordination number is seven in the wide range of the series of [LnL¹] (Ln=Y, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu). This has made it possible to compare the bond lengths for the lanthanide and yttrium complexes under the same coordination number.