Abstract

The reaction of barium(II) hydroxide with 2-furoic acid (pyromucic acid, Hfur) gave 1D coordination polymer {[Ba₃(fur)₆(Hfur)₂(H₂O)₈]}_n·4nH₂O (I). According to X-ray diffraction data, I contains two symmetrically independent barium cations, which have different environments: Ba(1) coordinates six fur^– anions, while Ba(2) is a fragment of heteroleptic coordination (fur^–, Hfur, and H₂O) (CIF file CCDC no. 2063380). The supramolecular polymeric architecture of I is determined by bridging water molecules and numerous hydrogen bonds between coordinated and solvation water molecules to form a 1D motif. The arrangement of Ba²⁺ ions in the trinuclear moiety {Ba₃(fur)₆(Hfur)₂(H₂O)₈} of the polymer is nearly linear. The thermal behavior of I, investigated by simultaneous thermal analysis (argon atmosphere), showed a stepwise character of thermal decomposition caused by gradual destruction of the hydrogen-bonded framework and the subsequent partial destruction of the organic part. Analysis of the biological activity of I against the non-pathogenic Mycolicibacterium smegmatis strain showed low sensitivity of the bacterial wall to the complex.

中文翻译：

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Ba2+ 与 2-Furoic Acid 阴离子的配位聚合物：合成、结构和热性能

摘要

氢氧化钡 (II) 与 2-糠酸 (pyromucic acid, Hfur) 反应得到一维配位聚合物 {[Ba ₃ (fur) ₆ (Hfur) ₂ (H ₂ O) ₈ ]} _n ·4 n H ₂ O （我）。根据 X 射线衍射数据，I包含两个对称独立的钡阳离子，它们具有不同的环境：Ba(1) 配位六个毛^-阴离子，而 Ba(2) 是杂配位配位的片段（毛^-、Hfur 和 H ₂ O)（CIF 文件 CCDC 编号 2063380）。I的超分子聚合物结构由桥接水分子和配位和溶剂化水分子之间的众多氢键以形成一维基序来确定。Ba ²⁺离子在聚合物的三核部分{Ba ₃ (fur) ₆ (Hfur) ₂ (H ₂ O) ₈ }中的排列几乎是线性的。通过同时热分析（氩气气氛）研究的I的热行为显示出由氢键框架的逐渐破坏和随后有机部分的部分破坏引起的热分解的逐步特征。I对非致病性耻垢分枝杆菌的生物活性分析 菌株显示细菌壁对复合物的低敏感性。