Robust Y and Lu TrenSal catalysts for ring-opening polymerisation

被引：0

作者：

Fazekas, Eszter ^{[1
]}

Etcheverry-Berrios, Alvaro ^{[2
]}

Nichol, Gary S. ^{[1
]}

Piligkos, Stergios ^{[3
]}

Brechin, Euan K. ^{[1
]}

Garden, Jennifer A. ^{[1
]}

机构：

[1] EaStCHEM School of Chemistry, University of Edinburgh, David Brewster Road, Edinburgh,EH9 3FJ, United Kingdom

[2] Faculty of Science and Engineering, Manchester Metropolitan University, Chester Street, Manchester,M1 5GD, United Kingdom

[3] Department of Chemistry, University of Copenhagen, Copenhagen,DK-2100, Denmark

来源：

Polyhedron | 2025年 / 266卷

关键词：

Alkylation - Ligands - Lutetium alloys - Lutetium compounds - Synthesis (chemical) - X ray powder diffraction - Yttrium - Yttrium compounds;

D O I：

10.1016/j.poly.2024.117308

中图分类号：

学科分类号：

摘要：

Mono and bimetallic cage-like TrenSal complexes based on rare-earth metals Y and Lu were synthesised and fully characterised by single crystal and powder X-ray diffraction, multinuclear NMR and IR spectroscopy, and MALDI-ToF mass spectrometry. These robust and air-stable complexes are active catalysts for the ring-opening polymerisation of rac-lactide. While the polymerisation activity is low, the complexes remain active in air using unpurified monomers, and are highly unusual examples of metal–organic cages applied in polymerisation. MALDI-ToF mass spectrometry studies of the obtained polymers revealed H and OBn end-capped chains suggesting that an ‘activated monomer’ mechanism predominates when BnOH is used as an exogenous initiator. © 2024 The Authors

引用

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