Surfactant-assisted assembly of nanoscale zinc coordination compounds to enhance tandem conversion reactions in water
| Autor: | Hongwei Hou, Zhichao Shao, Chao Huang, Guizhen Lu, Liwei Mi, Yingying Zhang, Kaifang Zhu, Kuan Gao |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
chemistry.chemical_classification
Vinyl alcohol Materials science 010405 organic chemistry chemistry.chemical_element Polymer Zinc 010402 general chemistry Heterogeneous catalysis 01 natural sciences 0104 chemical sciences Catalysis Coordination complex Inorganic Chemistry chemistry.chemical_compound chemistry Chemical engineering Particle Selectivity |
| Zdroj: | Dalton Transactions. 48:16008-16016 |
| ISSN: | 1477-9234 1477-9226 |
| DOI: | 10.1039/c9dt03145f |
| Popis: | Precise control over the morphology and size of coordination polymers (CPs) is crucial for extending these inorganic–organic materials to many advanced applications, in particular for heterogeneous catalysis. In this work, two Zn-based CPs, {[Zn3(idbt)2(4,4′-dmbpy)2]·H2O}n (1) and {[Zn3(idbt)2(H2O)3]·H2O}n (2) (H3idbt = 5,5′-(1H-imidazole-4,5-diyl)-bis-(2H-tetrazole), 4,4′-dmbpy = 4,4′′-dimethyl-2,2′-bipyridine), were synthesized through solvothermal reactions. The morphologies and particle sizes of 1 and 2 could be controlled from large scale to nanoscale by regulating the amount of poly(vinyl alcohol) (PVA). Furthermore, for the conversion reactions of nitromethylbenzenes into benzoic acids, the catalytic properties of nanoscale 1 and 2 were much more efficient than those of large size of 1 and 2, because of the benefit of readily accessible active sites in the nanoscale sized particles, which provide a tunable and functionalizable platform for the conversion reaction by minimizing the diffusion distance but do little for the selectivity. |
| Databáze: | OpenAIRE |
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