一个多个刺激响应的Ag/P/S复合体,显示了溶色和机色光发光
Jia-Jun Yan1, Yu Wu1, Weijia Zhai1
1Suzhou Key Laboratory of Novel Semiconductor-Optoelectronics Materials and Devices, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
Molecules (Basel, Switzerland)
|July 29, 2023
概括
研究人员开发了一种新的银复合体,1G,作为刺激反应传感器. 该传感器通过其固态光发光变化检测低分子量酒精,如甲醇,从而使其能够敏感地检测蒸汽.
科学领域:
- 协调化学 协调化学
- 材料科学 材料科学 材料科学
- 化学传感器 化学传感器
背景情况:
- 由于其独特的结构和光物理性质,人们正在探索含有素和三醇配体的银复合体.
- 响应刺激的材料为开发先进传感器提供了潜力.
- 固态材料中的光发光变化可以表明环境变化.
研究的目的:
- 合成和表征一种具有潜在传感应用的新型双核银复合体.
- 调查复合体的固态光发光特性及其转换.
- 评估该综合体对各种蒸汽的反应能力,以作为分子传感器的潜在用途.
主要方法:
- 从银三乙酸盐,3-bdppmapy和1,2,4-triazole-3-thiol中合成一个双核银复合物[Ag2(TZ) 2 ((3-bdppmapy) 2) ·xSol (1·xSol).
- 在不同条件下 (空气,真空,加热,研磨) 研究了复合体的固态转换.
- 其特点是光发光发射转移和对各种挥发性有机化合物 (VOC) 和蒸汽的反应.
主要成果:
- 双核银复合物1·xSol在暴露于空气和真空/加热时发生转化为1·2MeOH和1,固态光发光度 (510nm到494nm和486nm) 发生相应的转变.
- 研磨1·2MeOH产生无形形式的1G (468nm排放),在甲醇处理后可逆转化为1GR (513nm排放).
- 无形复合体1G在对低分子量酒精蒸气的反应中表现出选择性的光发光变化,但其他VOC或水蒸气没有.
- 使用1G的试验纸检测到度超过50%的甲醇蒸汽.
结论:
- 合成的银复合物及其无形形式1G显示了可逆的固态光发光变化.
- 复杂的1G作为一种刺激反应的分子传感器,在蒸汽阶段选择性地检测低分子量酒精.
- 这种材料对开发用于酒精检测的敏感和选择性化学传感器具有前景.
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