受限几何构型氧和硫官能化环戊二烯基铬配合物的合成、表征及其在烯烃聚合催化中的应用

Synthesis and Characterization of Constrained Geometry Oxygen and Sulphur Functionalized Cyclopentadienylchromium Complexes and Their Use in Catalysis for Olefin Polymerization.

作者信息

Zhao Ruiguo, Ma Jun, Zhang Hao, Huang Jiling

机构信息

School of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, China.

The Laboratory of Organometallic Chemistry, East China University of Science and Technology, Shanghai 200237, China.

出版信息

Molecules. 2017 May 22;22(5):856. doi: 10.3390/molecules22050856.

DOI:10.3390/molecules22050856

PMID:28531160

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6154690/

Abstract

A series of constrained geometry O-functionalized cyclopentadienylchromium complexes (-) and a S-functionalized cyclopentadienylchromium complex () were first synthesized, characterized, and tested as catalyst precursors for the olefin polymerization. In the presence of MAO, the complexes exhibited high catalytic activity for the polymerization of ethylene. It is shown that ligand variations can have a substantial effect on catalyst activity and stability. The effect of Al/Cr ratio on catalytic activity was also studied.

摘要

首次合成、表征并测试了一系列具有受限几何结构的O-官能化环戊二烯基铬配合物（-）和一种S-官能化环戊二烯基铬配合物（）作为烯烃聚合的催化剂前体。在甲基铝氧烷（MAO）存在下，这些配合物对乙烯聚合表现出高催化活性。结果表明，配体变化对催化剂活性和稳定性有显著影响。还研究了铝/铬比对催化活性的影响。