Coordination polymers constructed from isomeric N‚N'-bis(pyridylmethyl)oxalamide and polycarboxylic acids: Metal and ligand effect on the structural diversity

IF 4.7 2区化学 Q2 CHEMISTRY, PHYSICAL Journal of Molecular Structure Pub Date : 2025-09-05 Epub Date: 2025-04-21 DOI:10.1016/j.molstruc.2025.142448

Shu-Ling Yeh , Jhao-Yu Ciou , Su-Chun Wang , Chia-Wen Lee , Yen-Hsin Chen , Yi-Lin Shen , Tsun-Ren Chen , Jhy-Der Chen

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Abstract

Reactions of N‚N'-bis(3-pyridylmethyl)oxalamide (L¹) or N‚N'-bis(4-pyridylmethyl)oxalamide (L²) with polycarboxylic acid and divalent metal salt afforded eight coordination polymers, {[Cd(L¹)(1,3,5-HBTC)(H₂O)]·3H₂O}_n (1,3,5-H₃BTC = benzene-1,3,5-tricarboxylic acid), 1, {[Cd(1,3,5-BTC)(H₂O)]·(H₂L²)_0.5·3H₂O}_n, 2, {[Co₂(L²)(SDA)₂ (µ-OH₂)(H₂O)₂]·6H₂O}_n (H₂SDA = 4,4′-sulfonyldibenzoic acid), 3, {[Zn(L²)_0.5(1,2,4,5-BTEC)_0.5(H₂O)]⋅2H₂O}_n (1,2,4,5-H₄BETC = 1,2,4,5-benzenetetracarboxylic acid), 4, {[Ni(L²)(5-NIPA)(H₂O)]⋅H₂O}_n (5-H₂NIPA = 5-nitroisophthalic acid), 5, {[Ni(L¹)(5-NIPA)(H₂O)]⋅H₂O}_n, 6, {[Ni(L¹)_0.5(TBIP)(H₂O)₂]⋅H₂O}_n (H₂TBIP = 5‑tert-butylisophthalic acid), 7, and {[Ni(L²)_1.5(TBIP)(H₂O)]⋅4H₂O}_n, 8, which have been structurally characterized by using single crystal X-ray diffraction. Complexes 1 – 4 form a 1D chain with the 2,2,4C1 topology, a 3D framework with the sra topology, a 2-fold interpenetrated 3D framework with the dia topology and a 2D net with the bex topology, whereas 5 – 8 are 2D nets with 3,5L2, 2,4L3, 3-fold interpenetrated (10³)(10) and hcb topologies, respectively, revealing the metal and ligand-isomerism effect on the structural diversity. Luminescent properties of complexes 1, 2 and 4 and iodine adsorption of 3 are also evaluated. Reversible structural transformation upon water removal and adsorption can be shown for the desolvated complex 3.

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N， N'-双（吡啶基甲基）草酰胺与聚羧酸异构体构建的配位聚合物：金属和配体对结构多样性的影响

反应的N, N ' bis (3-pyridylmethyl) oxalamide (L1)或N, N ' bis (4-pyridylmethyl) oxalamide (L2)多羧酸的酸和二价金属盐提供八个协调聚合物,{[Cd (L1)(1、3、5-HBTC) (H2O)]·3 H2O} N(1、3、5-H3BTC = benzene-1 3 5-tricarboxylic酸),1,{[Cd(1、3、5-BTC) (H2O)) * (H2L2) 0.5 * 3 H2O} N, 2,{[二氧化碳(L2) (SDA) 2(µ这里)(H2O) 2] 6·H2O} N (H2SDA = 4, 4’-sulfonyldibenzoic酸)3{[锌(L2) 0.5(1、2、4,5-BTEC) 0.5 (H2O)]⋅2水}N(1、2、4,5-H4BETC = 1, 2, 4, 5-benzenetetracarboxylic酸),4,{[Ni(L2)(5- nipa)(H2O)]⋅H2O}n （5- h2nipa = 5-硝基间苯二甲酸），5,{[Ni(L1)(5- nipa)(H2O)]⋅H2O}n, 6, {[Ni(L1)0.5(TBIP)(H2O)2]⋅H2O}n （H2TBIP = 5-丁基间苯二甲酸），7，和{[Ni(L2)1.5(TBIP)(H2O)]⋅4H2O}n, 8，通过单晶x射线衍射对其进行了结构表征。配合物1 - 4形成具有2,2,4c1拓扑结构的1D链、具有sra拓扑结构的3D框架、具有dia拓扑结构的2倍互穿3D框架和具有bex拓扑结构的2D网状结构，而5 - 8分别形成具有3,5l2、2,4l3、3倍互穿（103）（10）和hcb拓扑结构的2D网状结构，揭示了金属和配体异构对结构多样性的影响。并评价了配合物1、2和4的发光性能和配合物3的碘吸附性能。脱溶配合物3在脱水和吸附过程中表现出可逆的结构转变。

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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.