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Synthesis, characterization and reactivity of a zwitterionic amine bridged bis(phenolate) lanthanide complex

Li, Qingyan ; Nie, Kun ; Xu, Bin ; Yao, Yingming ; Zhang, Yong ; Shen, Qi

Polyhedron [Tạp chí có phản biện]

ISSN: 0277-5387 ; DOI: 10.1016/j.poly.2011.08.033

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  • Nhan đề:
    Synthesis, characterization and reactivity of a zwitterionic amine bridged bis(phenolate) lanthanide complex
  • Tác giả: Li, Qingyan ; Nie, Kun ; Xu, Bin ; Yao, Yingming ; Zhang, Yong ; Shen, Qi
  • Chủ đề: Lanthanide–Metal ; Bis(Phenolate) Ligand ; Zwitterionic Complex ; Zinc Cluster ; Reactivity ; Structure
  • Là 1 phần của: Polyhedron
  • Mô tả: Graphical abstract A new method to approach the zwitterionic amine bridged bis(phenolate) lanthanide(III) complex has been provided, and the reactivity of the zwitterionic ytterbium complex toward a zinc alkyl cluster has been explored. Highlights ► A new approach to synthesizing zwitterionic lanthanide complex was provided. ► The reactivity of the zwitterionic lanthanide complex was explored. ► A novel alkylzinc alkoxo cluster was characterized. A zwitterionic amine bridged bis(phenolate) ytterbium(III) complex was synthesized, and its reactivity with a zinc cluster was explored. The reaction of (C 5H 5) 3Yb(THF) with the amine bridged bis(phenol) HONNOH [ONNO = Me 2NCH 2CH 2N{CH 2-(2-O-C 6H 2-Bu t 2-3,5)} 2] in a 1:2 M ratio in toluene at 80 °C produced the zwitterionic ytterbium complex [ONNO]Yb[ONNO(μ 4-H)] ( 1) in a high isolated yield. The reaction of ZnEt 2 with 1 equiv of PhCH 2OH gave a zinc cluster Zn 7Et 6(OCH 2Ph) 8 ( 2) in a good isolated yield. Complex 1 reacted with complex 2 in a 7:1 M ratio at room temperature to afford the unexpected ligand redistributed product [ONNO]Zn(THF) ( 3). These complexes were well characterized by elemental analyses, IR spectra and NMR spectroscopy in the case of complexes 2 and 3. The definitive molecular structures of complexes 2 and 3 were determined by single-crystal X-ray analyses.
  • Ngôn ngữ: English
  • Số nhận dạng: ISSN: 0277-5387 ; DOI: 10.1016/j.poly.2011.08.033

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