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首页> 外文期刊>Crystal growth & design >Aliphatic Dicarboxylate Directed Assembly of Silver(I) 1,3,5-Triaza-7-phosphaadamantane Coordination Networks: Topological Versatility and Antimicrobial Activity
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Aliphatic Dicarboxylate Directed Assembly of Silver(I) 1,3,5-Triaza-7-phosphaadamantane Coordination Networks: Topological Versatility and Antimicrobial Activity

机译：银（I）1,3,5-Triaza-7-phosphaadamantane配位网络的脂肪族二羧酸定向组装：拓扑多功能性和抗菌活性。

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The present work describes the facile synthesis, full characterization, and architectural diversity of three new bioactive silver-organic networks, namely 1D [Ag_2(μ-PTA)_2(μ-suc)]_n·2nH_2O (1), 2D [Ag_2(μ-PTA)_2(μ_4-adip)]_n·2nH_2O (2), and 3D [Ag_2(μ_4-PTA)(μ_4-mal)]_n (3) coordination polymers, generated via a mixed-ligand strategy using PTA (1,3,5-triaza-7-phosphaadamantane) as a main building block and flexible aliphatic dicarboxylic acids (succinic (H_(2suc)), adipic (H_(2adip)), or malonic (H_(2mal)) acids) as an ancillary ligand source. The compounds 1?3 were isolated as moderately air and light stable crystalline solids and were fully characterized by IR and ~1H and ~(31)P{~1H} NMR spectroscopy, elemental analysis, ESI(±)-MS spectrometry, and single-crystal X-ray crystallography. The type of aliphatic dicarboxylate plays a key role in defining the dimensionality and structural and topological features of the resulting networks, which are also driven by the PTA blocks that adopt unconventional N,P- or N_3,P-coordination modes. The topological analysis of simplified underlying nets revealed that 1 possesses uninodal 3-connected chains with the SP 1-periodic net (4,4)(0,2) topology, 2 features a uninodal 4-connected layer with the skl topology, and 3 reveals a uninodal 4-connected metal?organic framework with the dia topology. The presence of the crystallization water molecules in polymers 1 and 2 gives rise to the extension of their metal?organic structures into 3D (1) or 2D (2) H-bonded networks that disclose rather rare topologies. All of the obtained silver(I) coordination polymers feature solubility in water (S_(25) °C ≈ 3?5 mg mL~(?1)) and show significant antibacterial and antifungal activity against the selected strains of Gram-negative (Escherichia coli, Pseudomonas aeruginosa) and Gram-positive (Staphylococcus aureus) bacteria and yeast (Candida albicans).
机译：本工作描述了三种新的生物活性银有机网络，即1D [Ag_2（μ-PTA）_2（μ-suc）] _ n·2nH_2O（1），2D [Ag_2（ μ-PTA）_2（μ_4-adip）] _ n·2nH_2O（2）和3D [Ag_2（μ_4-PTA）（μ_4-mal）] _ n（3）配位聚合物，通过使用PTA（ 1,3,5-triaza-7-phosphaadamantane）作为主要结构单元，而柔性脂肪族二羧酸（琥珀酸（H_（2suc）），己二酸（H_（2adip））或丙二酸（H_（2mal））酸为主要成分辅助配体来源。分离出化合物1？3为适度的空气和光稳定结晶固体，并分别通过IR和〜1H和〜（31）P {〜1H} NMR光谱，元素分析，ESI（±）-MS光谱和单个特征进行全面表征-晶体X射线晶体学。脂族二羧酸盐的类型在定义所得网络的尺寸，结构和拓扑特征方面起着关键作用，这也受采用非常规N，P-或N_3，P配位模式的PTA嵌段的驱动。简化的基础网络的拓扑分析显示，1具有SP 1周期网（4,4）（0,2）拓扑结构的单节点3连接链，2具有skl拓扑结构的单节点4连接层，以及3揭示了具有dia拓扑的单节点4连接金属有机框架。聚合物1和2中结晶水分子的存在导致其金属有机结构扩展为3D（1）或2D（2）H键网络，这些网络揭示了相当罕见的拓扑结构。所有获得的银（I）配位聚合物均具有在水中的溶解度（S_（25）°C≈3？5 mg mL〜（？1）），并对所选革兰氏阴性菌（大肠埃希氏菌）表现出显着的抗菌和抗真菌活性。大肠杆菌，铜绿假单胞菌）和革兰氏阳性（金黄色葡萄球菌）细菌和酵母菌（白色念珠菌）。

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