皮里迪尔/皮里米迪尔含有联体调节两种具有独特架构和Al3+感知能力的Cd(II) -MOF
Jinfang Zhang1, Yinlong Yue1, Zhuo Lin1
1International Joint Research Center for Photoresponsive Molecules and Materials, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, PR China.
Inorganic chemistry
|November 25, 2024
概括
合成了两种基于的新金属有机框架 (MOF),具有独特的结构和独特的环境污染物和金属离子的感应能力.
科学领域:
- 材料科学 材料科学 材料科学
- 化学 化学 化学
- 纳米技术 纳米技术
背景情况:
- 开发具有先进架构和高性能的金属有机框架 (MOF) 是一个重大的挑战.
- 功能性连接体在决定MOF的结构多样性和特性方面发挥着至关重要的作用.
研究的目的:
- 通过使用含 pyridyl/pyrimidyl 的配体合成两种新型的 ((II) -MOFs.
- 研究合成的MOF的结构特征和传感性能.
- 探索这些MOF的传感机制和潜在应用.
主要方法:
- 使用9,10-bis(di(pyridine-4-yl) 甲) -9,10-dihydroanthracene (L1) 和9,10-bis(di(pyrimidin-5-yl) 甲) -9,10-dihydroanthracene (L2) 的两个Cd(II) -MOF的水热合成.
- 单晶X射线衍射用于结构确定.
- 发光光谱学用于传感研究.
- 分析水,pH值和热稳定性.
主要成果:
- 成功合成了两种新型Cd(II) -MOFs:[Cd2(L1) ((BDC) 2·1.5i-PrOH] (1) 和[Cd(L2) 0.5 ((BDC) ((H2O) ] (2).成功合成了两种新的Cd(II) -MOFs:[Cd2(L1) ((BDC) 2·1.5i-PrOH] (1) 和[Cd(L2) 0.5 ((BDC) ((H2O) ] (2).
- MOF 1 呈现出一个 3D (4,6,10) 连接的多框架,而 MOF 2 则形成一个 3D (4,7) 连接的柱状层框架,其中有无协调的金基N位点.
- 这两种MOF都表现出极好的水,pH和热稳定性.
- MOF 1 能有效地检测三烯醇 (TNP) 和二醇 (MDZ),而 MOF 2 对 Al3+ 检测具有超高灵敏度 (LOD = 2.93 × 10-7 M),明显低于 MOF 1 和世卫组织指导方针.
结论:
- 合成的MOF具有新的和未报告的拓.
- MOF 2在检测Al3+方面表现出极高的灵敏度和选择性,突出显示了其在环境监测方面的潜力.
- 独特的传感性能归因于MOF内部的结构差异和活跃站点.
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