Post‐Synthetic Modification of a 1D Mixed‐Linker Zn(II) Coordination Polymer for Acid‐Catalyzed Alcoholysis of Epoxides
Year: 2024
Type: article
Abstract: Rational design of heterogeneous acid catalysts possessing uniform dispersion of active sites plays a significant role in the catalytic performance. In the present work, a coordination polymer, [Zn(4,4'‐bpy)(μ‐Hbtc)(H 2 O)] ⋅ 2H 2 O ( Zn‐CP ), was solvothermally synthesized using 4,4'‐bpy (=4,4'‐bipyridine) and H 3 btc (=1,3,5‐benzenetricarboxylic acid) mixed linkers. Single crystal X‐ray analysis of the polymer displayed that Zn‐CP chains were decorated with 4,4'‐bpy having unidentate coordination fashion. Then, the free N atom of the linker in Zn‐CP was functionalized by ‐SO 3 H groups to afford Zn‐CP‐SO 3 H with enhanced acidity. The structures were characterized by FT‐IR, thermogravimetric analysis, powder X‐ray diffraction (XRD), X‐ray photoelectron spectroscopy (XPS), temperature programmed desorption of NH 3 (NH 3 ‐TPD), and field emission scanning electron microscopy (FE‐SEM) analyses. The coordination polymer was employed as a heterogeneous catalyst for the alcoholysis of epoxides under room conditions. Zn‐CP‐SO 3 H exhibited excellent catalytic activity and regioselectivity in the methanolysis of styrene oxide within short reaction time.
Source: ChemPlusChem
Authors: Mahnaz Najafi, Jan Janczak
Language: English
Subfield: Inorganic Chemistry
Field: Chemistry
Domain: Physical Sciences
Open Access status: bronze
Funder: Yasouj University
OpenAlex ID: W4402354404