当前位置: X-MOL 学术Supramol. Chem. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Structural transformation from 1D to 3D in [K(µ5-L1).H2O]n (L1 = 2,4-dinitrobenzoate) by nitro group coordination: Comparison with theoretical and Hirshfeld surface calculations
Supramolecular Chemistry ( IF 3.3 ) Pub Date : 2020-09-13 , DOI: 10.1080/10610278.2020.1817454
Rahul Kumar Mudsainiyan 1 , Keshav Chander
Affiliation  

ABSTRACT Reaction of KOH with 2,4-Dinitrobenzoic acid (L1H) in the presence of acetonitrile-water mixture yielded product [K(μ5-L1).H2O]n resulted in a dramatic structural transformation into 3D polymeric complex. The observed structural transformation is arising from the coordination through carboxylate as well as both nitro groups. This polymeric complex has been solved in triclinic centrosymmetric space group (Pī) and characterised by elemental analysis, FT-IR spectroscopy, powder X-ray diffraction analysis and single-crystal diffraction analysis. This complex attains high thermal stability up to 423°C. During investigation of various intermolecular interactions, both X-ray diffraction and Hirshfeld surface analysis give comparable results. DFT calculations and X-ray studies show an excellent agreement and resulting molecular geometry depends on the choice of functional, theoretical calculations which were carried out with the B3LYP level of theory using 6–31 G basis set. The complex {[K(L1)].H2O}n is synthesised by dramatic structural transformation into 3D polymer additionally by nitro group coordination. This 3D polymeric complex attains high thermal stability up to 423°C. During investigation of various intermolecular interactions, both X-ray diffraction and Hirshfeld surface analysis give comparable results. Graphics for use in the Table of Contents

中文翻译:

[K(µ5-L1).H2O]n (L1 = 2,4-dinitrobenzoate) 中硝基配位从 1D 到 3D 的结构转换:与理论和 Hirshfeld 表面计算的比较

摘要 在乙腈-水混合物存在下,KOH 与 2,4-二硝基苯甲酸 (L1H) 的反应产生了产物 [K(μ5-L1).H2O]n,导致了显着的结构转变为 3D 聚合物复合物。观察到的结构转变是由羧酸根以及两个硝基的配位引起的。该聚合物配合物已在三斜中心对称空间群 (Pī) 中解出,并通过元素分析、FT-IR 光谱、粉末 X 射线衍射分析和单晶衍射分析进行表征。这种复合物在高达 423°C 的温度下具有很高的热稳定性。在研究各种分子间相互作用时,X 射线衍射和 Hirshfeld 表面分析都给出了可比较的结果。DFT 计算和 X 射线研究显示出极好的一致性,由此产生的分子几何形状取决于功能和理论计算的选择,这些计算是在 B3LYP 理论水平使用 6-31 G 基组进行的。复合物 {[K(L1)].H2O}n 是通过显着的结构转变为 3D 聚合物另外通过硝基配位合成的。这种 3D 聚合物复合物可在高达 423°C 的温度下实现高热稳定性。在研究各种分子间相互作用时,X 射线衍射和 Hirshfeld 表面分析都给出了可比较的结果。用于目录的图形 H2O}n 是通过显着的结构转变为 3D 聚合物另外通过硝基配位合成的。这种 3D 聚合物复合物可在高达 423°C 的温度下实现高热稳定性。在研究各种分子间相互作用时,X 射线衍射和 Hirshfeld 表面分析都给出了可比较的结果。用于目录的图形 H2O}n 是通过显着的结构转变为 3D 聚合物另外通过硝基配位合成的。这种 3D 聚合物复合物可在高达 423°C 的温度下实现高热稳定性。在研究各种分子间相互作用时,X 射线衍射和 Hirshfeld 表面分析都给出了可比较的结果。用于目录的图形
更新日期:2020-09-13
down
wechat
bug