Synthesis and Characterization of Paramagnetic Lanthanide Benzyl Complexes

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• 作者：Wenliang Huang ; Brianna M. Upton ; Saeed I. Khan ; Paula L. Diaconescu
• 刊名：Organometallics
• 出版年：2013
• 出版时间：March 11, 2013
• 年：2013
• 卷：32
• 期：5
• 页码：1379-1386
• 全文大小：375K
• 年卷期：v.32,no.5(March 11, 2013)
• ISSN：1520-6041

文摘

The organometallic chemistry of paramagnetic lanthanides (Ln, from Ce to Yb) is far less developed compared to that of their diamagnetic counterparts (Sc, Y, La, and Lu). Lack of available starting materials and characterization methods are the major obstacles. Herein we report the synthesis and characterization of trisbenzyl complexes of neodymium, gadolinium, holmium, and erbium. In addition, we introduce a direct procedure for the synthesis of lanthanide benzyl and iodide complexes supported by a ferrocene diamide ligand starting from the corresponding oxides. All newly synthesized compounds were characterized by X-ray crystallography, ¹H NMR spectroscopy (except for gadolinium compounds, which were NMR silent), and elemental analysis.