[(bmppy)Cu(μ-I)]2 (bmppy=2,6-bis(1-methyl-1H-pyrazol-3-yl) pyridine): Synthesis, crystal structure and its catalytic performance for MMA polymerization

被引：13

作者：

Ding, Hong-Ye ^{[1
]}

Cheng, Hong-Jian ^{[1
]}

Wang, Fan ^{[1
]}

Liu, De-Xian ^{[1
]}

Li, Hong-Xi ^{[1
]}

Fang, Yang-Yang ^{[1
]}

Zhao, Wei ^{[1
]}

Lang, Jian-Ping ^{[1
,2
]}

机构：

[1] Soochow Univ, Coll Chem Chem Engn & Mat Sci, Suzhou 215123, Peoples R China

[2] Chinese Acad Sci, Shanghai Inst Organ Chem, State Key Lab Organometall Chem, Shanghai 200032, Peoples R China

来源：

JOURNAL OF ORGANOMETALLIC CHEMISTRY | 2013年 / 741卷

基金：

中国国家自然科学基金;

关键词：

Cupper(I) complex; 2,6-Bis(1-methyl-1H-pyrazol-3-yl)pyridine; Structure; Catalysis; Methyl methacrylate; Polymerization; TRANSFER RADICAL POLYMERIZATION; METHYL-METHACRYLATE; COORDINATION POLYMERS; COPPER(I) COMPLEXES; LIGAND; ATRP; PRECATALYSTS; BROMIDE; DONOR; NO;

D O I：

10.1016/j.jorganchem.2013.05.012

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Reaction of CuI with equimolar amount of 2,6-bis(1-methyl-1H-pyrazol-3-yl)pyridine (bmppy) in MeCN and CH2Cl2 yielded a binuclear complex [(bmppy)Cu(mu-I)](2) (1). It was characterized by elemental analysis, IR, H-1 NMR and single crystal X-ray diffraction. Complex 1 possesses an iodide-bridged dimeric structure in which each Cu(l) center is tetrahedrally coordinated by two mu-I and two N atoms from one bmppy ligand. Complex 1 exhibited good catalytic performance in the polymerization of methyl methacrylate (MMA) in cyclohexanone. Even though the ratio of MMA to 1 was raised up to 1000:1 when the reaction time and temperature and the MMA concentration were fixed at 4 h and 80 degrees C and 3 mol/L, respectively, the polydispersity index (PDI) for the resulting PMMA is close to 1.36 and the conversion is up to 75%. In addition, the effects of solvents, reaction temperatures as well as the ratios of MMA to catalyst 1 were also investigated. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：1 / 6

页数：6

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