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Catalysts 2017, 7(12), 369; doi:10.3390/catal7120369

Synthesis, Structure and 1,3-Butadiene Polymerization Behavior of Vanadium(III) Phosphine Complexes

1
CNR, Istituto per lo Studio delle Macromolecole (ISMAC), via A. Corti 12, I-20133 Milano, Italy
2
Dipartimento di Chimica, Università degli Studi di Milano, via C. Golgi 19, I-20133 Milano, Italy
3
Dipartimento di Scienze Chimiche, Università degli Studi di Napoli Federico II, Complesso Monte S. Angelo, Via Cintia, I-80126 Napoli, Italy
4
Versalis S.p.A., Istituto Eni Donegani, via G. Fauser 4, I-28100 Novara, Italy
5
CNR, Istituto di Scienze e Tecnologie Molecolari (ISTM), Università degli Studi di Milano, via C. Golgi 19, I-20133 Milano, Italy
*
Author to whom correspondence should be addressed.
Received: 9 November 2017 / Revised: 24 November 2017 / Accepted: 25 November 2017 / Published: 28 November 2017
(This article belongs to the Special Issue Catalysts for the Controlled Polymerization of Conjugated Dienes)
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Abstract

A series of vanadium(III) complexes bearing monodentate tertiary phosphine ligands of the type VCl3(PRnPh3-n)2 (n = 0 (1a); n = 1 and R = Me (1b), Et (1c), iPr (1d), Cy (1e); n = 2 and R = Me (1f), Et (1g), Cy (1h)), and VCl3(PR3)2 (R = Cyp (2a), Cy (2b), nPr (2c), tBu (2d)) were synthesized and characterized. In the case of 1c, 1g and 2a single crystals were also obtained and their molecular structures were determined. All the complexes were used, in combination with methylaluminoxane (sMAO) or AlMe3–free MAO (dMAO), for the polymerization of 1,3-butadiene, exhibiting rather good activity and giving polymers with different microstructure depending on the nature of the phosphine ligand and the type of co-catalyst employed. View Full-Text
Keywords: vanadium phosphine complexes; X-ray structure; 1,3-butadiene polymerization; poly(1,3-butadiene) vanadium phosphine complexes; X-ray structure; 1,3-butadiene polymerization; poly(1,3-butadiene)
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MDPI and ACS Style

Leone, G.; Zanchin, G.; Pierro, I.; Sommazzi, A.; Forni, A.; Ricci, G. Synthesis, Structure and 1,3-Butadiene Polymerization Behavior of Vanadium(III) Phosphine Complexes. Catalysts 2017, 7, 369.

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