Coordination and Reactivity Studies of Titanium Complexes of Monoanionic Inversely Polarized Phosphaalkene–Ethenolate Ligands,Organometallics

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Coordination and Reactivity Studies of Titanium Complexes of Monoanionic Inversely Polarized Phosphaalkene–Ethenolate Ligands
Organometallics ( IF 2.5 ) Pub Date : 2020-08-25 , DOI: 10.1021/acs.organomet.0c00476
Juan E. Rodriguez Villanueva ₁ , Matthew A. Wiebe ₁ , Gino G. Lavoie ₁

Affiliation

The synthesis and reactivity of the first series of monoanionic bidentate ligands containing an N-heterocyclic carbene–phosphinidene adduct and their corresponding half-metallocene titanium complexes were investigated. The structural characterization of 5a confirmed bidentate coordination through the phosphorus and oxygen atoms of the ligand, with evidence of significant electron delocalization over the ligand structure. The new titanium complexes produced polyethylene at room temperature and under 1 atm of ethylene at a rate of up to 9.2 kg_PE mol_Ti^–1 h^–1.

中文翻译：

单阴离子反相极化的烯烃-乙烯醇配体钛配合物的配位和反应性研究

研究了含有N-杂环卡宾-次膦基加合物及其相应的半茂金属钛配合物的第一系列单阴离子二齿配体的合成和反应性。5a的结构表征证实了通过配体的磷和氧原子的双齿配位，并证明了在配体结构上明显的电子离域。新的钛络合物在室温下和乙烯在1个大气压下以9.2 kg _PE mol _Ti^–1 h ^–1的速率生产聚乙烯。

更新日期：2020-09-14

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