作为一种VOC传感器的金 (I) - (II) 复合物的蒸发色行为
Sonia Moreno1, David Royo1, Abdel G El-Hachimi1
1Departamento de Química, Universidad de La Rioja, Centro de Investigación en Síntesis Química (CISQ), Complejo Científico-Tecnológico, 26006 - Logroño, Spain. josemaria.lopez@unirioja.es.
Dalton transactions (Cambridge, England : 2003)
|October 6, 2023
概括
一个新的聚合物复合物作为挥发性有机化合物 (VOC) 传感器. 当暴露于溶剂蒸汽时,它会改变外观和发光,从而实现可调光学检测.
科学领域:
- 协调化学 协调化学
- 材料科学 材料科学 材料科学
- 超分子化学 超分子化学
背景情况:
- 聚合物金属复合物具有独特的结构和电子特性.
- 具有可访问空隙的金属有机框架对传感应用有希望.
- 对于先进的光学设备来说,固态材料中的发光调节至关重要.
研究的目的:
- 合成和描述一种具有潜在传感能力的新型聚合物复合物.
- 调查该综合体对挥发性有机化合物 (VOC) 的反应.
- 探索结构变化,发光特性和客分子之间的关系.
主要方法:
- 聚合物复合物的合成和单晶X射线衍射.
- 复合物的暴露于各种溶剂蒸气 (乙二,二,THF).
- 固态特性和光物理性质测量 (发光).
- 密度函数理论 (DFT) 和时间依赖的DFT (TD-DFT) 计算.
主要成果:
- 一个新的聚合物复合物,[{Au(C6F5) 2}2{Pb(terpy) },被合成并进行结构性特征.
- 该综合体呈现出能够容纳溶剂分子的空隙,从而形成新的多态体.
- 暴露于溶剂蒸汽引起了固体外观和发光的变化,每个多态体都有不同的发射能量.
- 可逆的溶剂交换允许在绿黄色-红色光谱中进行可调节的发光.
- DFT的计算揭示了发光的起源和金属相互作用的作用.
结论:
- 合成的聚合物复合体作为一个敏感的VOC传感器.
- 溶剂客分子诱导的结构变化直接影响材料的光物理性质.
- 客-主互动的可逆性使得发光的动态调整成为可能,为光学传感和响应材料提供了潜力.
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