Bis(phenoxy-azo)titanium(IV) Complexes: Synthesis, Structure, and Catalytic Activity in Styrene Polymerization
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https://figshare.com/articles/dataset/Bis_phenoxy_azo_titanium_IV_Complexes_Synthesis_Structure_and_Catalytic_Activity_in_Styrene_Polymerization/2515432
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资源简介：
A new class of titanium(IV) complexes bearing two phenoxy-azo
ligands
was synthesized. The Ti–N
bonds from X-ray structures were longer than those of corresponding
bis(phenoxy-imine)titanium(IV) complexes, which indicates that the
coordination of phenoxy-azo ligands becomes weaker on replacing the
imine carbon by nitrogen. These titanium complexes were applied for
the polymerization of styrene using DMAO as cocatalyst, and syndiotactic
polystyrene was obtained. Premixing DMAO with the titanium complex
resulted in higher activity, similar to the related bis(phenoxy-imine)titanium(IV)
complexes. The coordinating azobenzene subunits did not undergo E → Z photoisomerization upon UV
irradiation.
创建时间：
2016-02-20
