Mononuclear Nickel(II) Complexes with Schiff Base Ligands: Synthesis, Characterization, and Catalytic Activity in Norbornene Polymerization

Yi-Mei Xu; Kuan Li; Yuhong Wang; Wei Deng; Zi-Jian Yao

doi:10.3390/polym9030105

Mononuclear Nickel(II) Complexes with Schiff Base Ligands: Synthesis, Characterization, and Catalytic Activity in Norbornene Polymerization

Polymers (Basel). 2017 Mar 16;9(3):105. doi: 10.3390/polym9030105.

Authors

Yi-Mei Xu¹, Kuan Li², Yuhong Wang³, Wei Deng⁴, Zi-Jian Yao⁵

Affiliations

¹ School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, China. 166061228@sit.edu.cn.
² School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, China. 156061209@sit.edu.cn.
³ School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, China. yuhong_wang502@sit.edu.cn.
⁴ School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, China. wdeng@sit.edu.cn.
⁵ School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, China. zjyao@sit.edu.cn.

Abstract

The nickel(II) catalyst has manifested higher catalytic activity compared to that of other late transition metal catalysts for norbornene polymerization. Therefore, several structurally similar trans-nickel(II) compounds of N,O-chelate bidentate ligands were synthesized and characterized. Both the electronic effect and the steric hindrance influence polymerization. The molecular structures of 2, 4 and 5 were further confirmed by single-crystal X-ray diffraction.

Keywords: Schiff base; X-ray crystals; catalysis; nickel(II) complex; polymerization.

Abstract

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