阳离子-π 相互作用使硬/软 Ti/Ag 杂双金属协同作用能够在丙交酯开环聚合中发生。

Cation-π interactions enabling hard/soft Ti/Ag heterobimetallic cooperativity in lactide ring-opening polymerisation.

机构信息

Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, White City Campus, Wood Lane, London, W12 0BZ, UK.

出版信息

Chem Commun (Camb). 2021 Nov 23;57(93):12524-12527. doi: 10.1039/d1cc05083d.

DOI:10.1039/d1cc05083d

PMID:34751687

Abstract

The combination of a Ti-salen complex with AgBArF reveals unique hard/soft heterobimetallic cooperativity in lactide ring-opening polymerisation (ROP), enabling significant activity at room temperature. Reactivity, mechanistic and computational studies highlight the role of cation-π interactions in the formation of heterobimetallic species and provide key insights into the role of both metals in ROP.

摘要

Ti-salen 配合物与 AgBArF 的组合在丙交酯开环聚合（ROP）中表现出独特的硬/软杂金属协同作用，使室温下的活性显著提高。反应性、机理和计算研究突出了阳离子-π 相互作用在杂金属物种形成中的作用，并为两种金属在 ROP 中的作用提供了关键见解。