Synthesis and structural characterization of magnesium complexes bearing benzotriazole phenoxide ligands: Photoluminescent properties and catalytic studies for ring-opening polymerization of l-lactide

Chen Yu Li, Jing Kai Su, Chia Jung Yu, Yu En Tai, Chia Her Lin, Bao Tsan Ko*

*此作品的通信作者

研究成果: 雜誌貢獻期刊論文同行評審

23 引文 斯高帕斯(Scopus)

摘要

Magnesium catalysts incorporated by sterically bulky benzotriazole- phenoxide ligands ( CMe2PhBTP -, t-BuBTP - and TMClBTP -) are synthesized and structurally characterized. The reaction of Mg nBu 2 with CMe2PhBTP-H (2.0 mol Eq) in THF produces penta-coordinated monomeric magnesium complex [( CMe2PhBTP) 2Mg(THF)] (1). However, six-coordinated bis-adduct magnesium complexes [( t-BuBTP) 2Mg(THF) 2] (2) and [( TMClBTP) 2 Mg(THF) 2] (3) result from treatments of Mg nBu 2 with t-BuBTP-H and TMClBTP-H in THF under the same stoichiometric proportion, in which each Mg center is coordinated by two THF molecules. Optical properties and catalytic studies for l-lactide polymerizations of magnesium complexes 1-3 are investigated. Magnesium complex 3 catalyzes the ring-opening polymerization effectively not only in a controlled fashion but also in an immortal manner, giving polymers with the expected molecular weights and narrow molecular weight distributions.

原文英語
頁(從 - 到)60-65
頁數6
期刊Inorganic Chemistry Communication
20
DOIs
出版狀態已發佈 - 2012 6月
對外發佈

ASJC Scopus subject areas

  • 物理與理論化學
  • 無機化學
  • 材料化學

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