Title page for etd-0628112-005647


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URN etd-0628112-005647
Author Ting-Ting Tsai
Author's Email Address No Public.
Statistics This thesis had been viewed 5330 times. Download 459 times.
Department Chemistry
Year 2011
Semester 2
Degree Master
Type of Document
Language zh-TW.Big5 Chinese
Title Synthesis and Characterization of Titanium Complexes of Aryl Diamides and Tantalum Complexes of Diphenolate Phosphine Ligands
Date of Defense 2012-05-11
Page Count 207
Keyword
  • catalyst
  • ring-opening polymerization
  • dinitrogen activation
  • aryl diamide ligand
  • chelating ligand
  • Abstract The novel chelating ligand, Me[NOON]H2 (N,N'-((ethane-1,2-diylbis(oxy))-bis(ethane-2,1-diyl))- bis(2,6-dimethylaniline)), have been synthesized successfully
    and characterized by NMR. The lithium complexes of the aryl diamide ligand have also been synthesized by n-BuLi react with neutral ligand, Me[NOON]H2. And the
    lithium complexes is a ether adduct according to the 1H NMR. The lithium complex, Me[NOON]Li2(OEt2) react with Ti(OiPr)4 and TiCl4(THF)2 to form the NOON titanium alkoxide and dichloride complexes respectively, and they have been characterized by
    1H NMR and X-ray diffraction. These NOON titanium complexes are expected to be a catalyst for the ring opening polymerization of lactide or caprolactone in the future.
    The tantalum complexes of diphenolate phosphine ligands have been synthesized and characterized successfully by NMR, X-ray diffraction, and elemental analysis. The tantalum complexes, [tBuOPO]2TaX (X=Me, Et, H) is produced by the reaction of
    [tBuOPO]2TaCl with Grignard reagent (MeMgBr and EtMgCl) and superhydride(LiHBEt3). These tantalum complexes will be applied in dinitrogen activation in the
    future work.
    Advisory Committee
  • Teng-Yuan Dong - chair
  • Tsu-Hsin Chang - co-chair
  • Ting-Yu Lee - co-chair
  • Ting-Yu Lee - co-chair
  • Lan-Chang Liang - advisor
  • Files
  • etd-0628112-005647.pdf
  • Indicate in-campus at 2 year and off-campus access at 2 year.
    Date of Submission 2012-06-28

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