1-hexene homopolymerization and copolymerization with polar ω-Halo-α-alkenes by (Benz)imidazolin-2-iminato scandium and yttrium complexes

Yanming Hu; Moris S. Eisen; Xuequan Zhang; Wenpeng Zhao; Beibei Wang; Bo Dong; Heng Liu

doi:10.1021/acs.organomet.0c00563

1-hexene homopolymerization and copolymerization with polar ω-Halo-α-alkenes by (Benz)imidazolin-2-iminato scandium and yttrium complexes

Yanming Hu^*, Moris S. Eisen, Xuequan Zhang, Wenpeng Zhao, Beibei Wang, Bo Dong, Heng Liu

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

The synthesis and characterization of (benz)imidazolin-2-iminato scandium and yttrium complexes (Sc1.Sc3, Y1, and Y2) are reported herein. All of the complexes were isolated in high yields, and from single-crystal X-ray diffraction analysis, extremely short N.Mt bonds were revealed, indicating the highly nucleophilic nature of the ligands. In the presence of [Ph3C][B(C6F5)4] and Al(i-Bu)3, scandium complexes showed medium to high activities for 1-hexene polymerization, revealing the trend Sc1 > Sc3 > Sc2. More importantly, the scandium complex Sc1 was active in the copolymerization of 1-hexene with polar ω-halo-α-alkenes, demonstrating the good heteroatom tolerance of the cationic lanthanide metals that is caused by the strong electrondonating ability of these ligands. The influence of different types of comonomers on the polymerization behaviors and the microstructure of the resultant copolymer products were investigated in detail.

Original language	English
Pages (from-to)	3983-3991
Number of pages	9
Journal	Organometallics
Volume	39
Issue number	22
DOIs	https://doi.org/10.1021/acs.organomet.0c00563
State	Published - 23 Nov 2020
Externally published	Yes

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title = "1-hexene homopolymerization and copolymerization with polar ω-Halo-α-alkenes by (Benz)imidazolin-2-iminato scandium and yttrium complexes",

abstract = "The synthesis and characterization of (benz)imidazolin-2-iminato scandium and yttrium complexes (Sc1.Sc3, Y1, and Y2) are reported herein. All of the complexes were isolated in high yields, and from single-crystal X-ray diffraction analysis, extremely short N.Mt bonds were revealed, indicating the highly nucleophilic nature of the ligands. In the presence of [Ph3C][B(C6F5)4] and Al(i-Bu)3, scandium complexes showed medium to high activities for 1-hexene polymerization, revealing the trend Sc1 > Sc3 > Sc2. More importantly, the scandium complex Sc1 was active in the copolymerization of 1-hexene with polar ω-halo-α-alkenes, demonstrating the good heteroatom tolerance of the cationic lanthanide metals that is caused by the strong electrondonating ability of these ligands. The influence of different types of comonomers on the polymerization behaviors and the microstructure of the resultant copolymer products were investigated in detail.",

author = "Yanming Hu and Eisen, {Moris S.} and Xuequan Zhang and Wenpeng Zhao and Beibei Wang and Bo Dong and Heng Liu",

year = "2020",

month = nov,

day = "23",

doi = "10.1021/acs.organomet.0c00563",

language = "英语",

volume = "39",

pages = "3983--3991",

journal = "Organometallics",

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T1 - 1-hexene homopolymerization and copolymerization with polar ω-Halo-α-alkenes by (Benz)imidazolin-2-iminato scandium and yttrium complexes

AU - Hu, Yanming

AU - Eisen, Moris S.

AU - Zhang, Xuequan

AU - Zhao, Wenpeng

AU - Wang, Beibei

AU - Dong, Bo

AU - Liu, Heng

PY - 2020/11/23

Y1 - 2020/11/23

N2 - The synthesis and characterization of (benz)imidazolin-2-iminato scandium and yttrium complexes (Sc1.Sc3, Y1, and Y2) are reported herein. All of the complexes were isolated in high yields, and from single-crystal X-ray diffraction analysis, extremely short N.Mt bonds were revealed, indicating the highly nucleophilic nature of the ligands. In the presence of [Ph3C][B(C6F5)4] and Al(i-Bu)3, scandium complexes showed medium to high activities for 1-hexene polymerization, revealing the trend Sc1 > Sc3 > Sc2. More importantly, the scandium complex Sc1 was active in the copolymerization of 1-hexene with polar ω-halo-α-alkenes, demonstrating the good heteroatom tolerance of the cationic lanthanide metals that is caused by the strong electrondonating ability of these ligands. The influence of different types of comonomers on the polymerization behaviors and the microstructure of the resultant copolymer products were investigated in detail.

AB - The synthesis and characterization of (benz)imidazolin-2-iminato scandium and yttrium complexes (Sc1.Sc3, Y1, and Y2) are reported herein. All of the complexes were isolated in high yields, and from single-crystal X-ray diffraction analysis, extremely short N.Mt bonds were revealed, indicating the highly nucleophilic nature of the ligands. In the presence of [Ph3C][B(C6F5)4] and Al(i-Bu)3, scandium complexes showed medium to high activities for 1-hexene polymerization, revealing the trend Sc1 > Sc3 > Sc2. More importantly, the scandium complex Sc1 was active in the copolymerization of 1-hexene with polar ω-halo-α-alkenes, demonstrating the good heteroatom tolerance of the cationic lanthanide metals that is caused by the strong electrondonating ability of these ligands. The influence of different types of comonomers on the polymerization behaviors and the microstructure of the resultant copolymer products were investigated in detail.

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U2 - 10.1021/acs.organomet.0c00563

DO - 10.1021/acs.organomet.0c00563

M3 - 文章

AN - SCOPUS:85096859292

SN - 0276-7333

VL - 39

SP - 3983

EP - 3991

JO - Organometallics

JF - Organometallics

IS - 22

ER -

1-hexene homopolymerization and copolymerization with polar ω-Halo-α-alkenes by (Benz)imidazolin-2-iminato scandium and yttrium complexes

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