Structures, functionality, and catalytic performance of H2abda-based coordination polymers

IF 4 2区化学 Q2 CHEMISTRY, PHYSICAL

Journal of Molecular Structure Pub Date : 2025-03-01 DOI:10.1016/j.molstruc.2025.141914

Yu Chen , Hong-Yu Wang , Xiao-Xiang Fan , Xiu-Qi Kang , Li-Rong Guo , Jin-Zhong Gu , Mohammad Azam

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引用次数: 0

Abstract

A series of eight coordination polymers incorporating transition metals [M = Co(II), Ni(II), Mn(II), Zn(II), and Cd(II)] were effectively produced via hydrothermal techniques. The primary ligand used in the synthesis was 2-amino-[1,1′-biphenyl]-4,4′-dicarboxylic acid (H₂abda), combined with various auxiliary ligands, including 1,10-phenanthroline (phen), 2,2′-bipyridine (bipy), 2,2′-biimidazole (H₂biim), 1,4-bis(pyrid-4-yl)benzene (bpb), and pyridine (py). This process produced one 1D, one 2D, and six 3D coordination polymers, designated as [Mn(μ₄-abda)(H₂O)₂]_n (1), [Mn(μ₄-abda)(phen)]_n (2), [Mn(μ₄-adba)(bipy)]_n·nH₂O (3), [Cd(μ₃-abda)(bipy)]_n (4), [Mn(μ-abda)(H₂biim)₂]_n·2nH₂O (5), [Ni₂(μ-abda)(μ₄-abda)(μ-bpb)₂(H₂O)₂]_n·2nH₂O (6), [Co₂(μ-abda)(μ₄-abda)(μ-bpb)₂]_n·nH₂O (7), and [Zn₄(μ₄-abda)₂(μ₃-abda) (μ₃OH)(μ-OH)(py)₂]_n (8). These coordination polymers were thoroughly studied to investigate their structural topologies and catalytic efficacy. Coordination polymer 8 exhibited remarkable catalytic efficacy in the Henry reaction involving pyridine-3-aldehyde, achieving high yields under optimized conditions. It demonstrated exceptional stability, effectiveness, and reusability as a heterogeneous catalyst.

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来源期刊

Journal of Molecular Structure 化学-物理化学

CiteScore

7.10

自引率

15.80%

发文量

2384

审稿时长

45 days

期刊介绍： The Journal of Molecular Structure is dedicated to the publication of full-length articles and review papers, providing important new structural information on all types of chemical species including: • Stable and unstable molecules in all types of environments (vapour, molecular beam, liquid, solution, liquid crystal, solid state, matrix-isolated, surface-absorbed etc.) • Chemical intermediates • Molecules in excited states • Biological molecules • Polymers. The methods used may include any combination of spectroscopic and non-spectroscopic techniques, for example: • Infrared spectroscopy (mid, far, near) • Raman spectroscopy and non-linear Raman methods (CARS, etc.) • Electronic absorption spectroscopy • Optical rotatory dispersion and circular dichroism • Fluorescence and phosphorescence techniques • Electron spectroscopies (PES, XPS), EXAFS, etc. • Microwave spectroscopy • Electron diffraction • NMR and ESR spectroscopies • Mössbauer spectroscopy • X-ray crystallography • Charge Density Analyses • Computational Studies (supplementing experimental methods) We encourage publications combining theoretical and experimental approaches. The structural insights gained by the studies should be correlated with the properties, activity and/ or reactivity of the molecule under investigation and the relevance of this molecule and its implications should be discussed.