Cobalt dichloride complexes with pyridyl-phosphine bidentate ligands: synthesis, characterization, and behavior in the polymerization of 1,3-butadiene

被引：2
|
作者：
Ricci, Giovanni [1 ]
Leone, Giuseppe [1 ]
Zanchin, Giorgia [1 ]
Sommazzi, Anna [2 ]
Masi, Francesco [3 ]
Forni, Alessandra [4 ]
机构：
[1] Ist Sci & Tecnol Mol Giulio Natta SCITEC, CNR, Via A Corti 12, I-20133 Milan, Italy
[2] Versalis SPA BIOCHEM, R&D & Green Chem Res Ctr, Via Fauser 4, I-28100 Novara, Italy
[3] Via Galvani 7, I-26866 St Angelo Lodigiano, LO, Italy
[4] Ist Sci & Tecnol Mol Giulio Natta SCITEC, CNR, Via C Golgi 19, I-20133 Milan, Italy
来源：
INORGANICA CHIMICA ACTA | 2023年 / 550卷
关键词：
Cobalt catalysts; Pyridyl-phosphine ligands; Stereospecific polymerization; Polybutadiene; BUTADIENE POLYMERIZATION; STEREOSPECIFIC POLYMERIZATION; BEARING; CATALYSTS; CO(II); IRON(II);
D O I：
10.1016/j.ica.2023.121424
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
New cobalt dichloride complexes with pyridyl-phosphine bidentate ligands were synthesized and characterized. Single crystals were obtained, and their molecular structure was determined by single crystal X-ray diffraction method. The complexes were then used in combination with methylaluminoxane (MAO) for the polymerization of 1,3-butadiene, obtaining predominantly cis-1,4 polymers or with a mixed cis-1,4/1,2 structure depending on the type of ligand and on the MAO/Co molar ratio. A plausible interpretation for this behavior is provided.
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页数：5
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