title: Microcrystalline Zinc Coordination Polymers as Single-site Heterogeneous Catalysts for the Selective Synthesis of Mono-oxazolines from Amino Alcohol and Dinitriles.
abstract: In our effort to develop coordination polymers (CPs)-based single-site catalysts for the selective synthesis of mono-oxazolines, two Zn-based CPs, [{Zn6 (idbt)4 (phen)4 } ⋅3 H2 O]n  (1) and [{Zn3 (idbt)2 (H2 O)4 }⋅2 H2 O]n  (2) (H3 idbt= 5,5'-(1H-imidazole-4,5-diyl)-bis-(2H-tetrazole), phen=1,10-phenanthroline) have been synthesized. They exhibit two-dimensional structure and contain isolated and accessible catalytically active sites, mimicking the site isolation of many catalytic enzymes. Micro CPs 1 and 2 are obtained by using surfactant-mediated hydrothermal methods, and an investigation is conducted to explore how different surfactants affect their morphologies and particle sizes. Furthermore, micro 1 and 2 have shown to be effective heterogeneous catalysts for the reaction of amino alcohols and aromatic dinitriles, and exerted a significant influence on the selectivity of the catalytic reactions, yielding mono-oxazolines as the major reaction product.
authors.affiliation: College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, China.
authors.forename: Junning
authors.initials: J
authors.lastname: Wang
authors.affiliation: College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, China.
authors.forename: Chao
authors.initials: C
authors.lastname: Huang
authors.affiliation: College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, China.
authors.forename: Kuan
authors.initials: K
authors.lastname: Gao
authors.affiliation: College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, China.
authors.forename: Xiaolu
authors.initials: X
authors.lastname: Wang
authors.affiliation: College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, China.
authors.forename: Mengjia
authors.initials: M
authors.lastname: Liu
authors.affiliation: College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, China.
authors.forename: Haoran
authors.initials: H
authors.lastname: Ma
authors.affiliation: College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, China. wujie@zzu.edu.cn.
authors.forename: Jie
authors.identifier: http://orcid.org/0000-0001-7746-6640
authors.initials: J
authors.lastname: Wu
authors.affiliation: College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, China. houhongw@zzu.edu.cn.
authors.forename: Hongwei
authors.initials: H
authors.lastname: Hou
keywords: heterogeneous catalysis; microcrystallines; oxazolines; polymers; surfactants