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Reactivity of lanthanocene hydroxides toward carbodiimide and CO2: Synthesis and characterization of lanthanide ureido and carbonate complexes |
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| Authors: | Ruiting Liu Zhen Li Weiyin Yi Zhenxia Chen Xigeng Zhou |
| Institution: | a Department of Chemistry, Fudan University, Handan Road 220, Shanghai 200433, People’s Republic of China b Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Handan Road 220, Shanghai 200433, People’s Republic of China c State Key Laboratory of Organometallic Chemistry, Shanghai 200032, People’s Republic of China |
| Abstract: | Cp2Ln(μ-OH)(THF)]2 react with 2 equiv of CyNCNCy (Cy = cyclohexyl) to form Cp2Ln(μ-OC(NHCy)NCy)]2 (Ln = Er (1-Er), Y (1-Y)), while treatment of Cp2Ln(μ-OH)]2(μ3-O)LnCp(THF) with CyNCNCy affords the addition/rearrangement products Cp2Ln(μ3-O)(μ-OC(NHCy)NCy)LnCp]2 (Ln = Yb (3-Yb), Er (3-Er)). Compounds (Cp2Ln)2(μ3-CO3)(THF)]2 (Ln = Yb (4-Yb), Er (4-Er)) can be obtained by treatment of Cp2Ln(μ-OH)(THF)]2 with CO2 immediately followed by the reaction with the corresponding Cp3Ln. Complexes 1-4 were characterized by elemental analysis, spectroscopic properties and X-ray single crystal diffraction analysis. |
| Keywords: | Lanthanides Addition Carbodiimide Carbon dioxide Crystal structure |
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