NIR-II来自循环金属化二核Pt (III) 复合物的排放
Irene Melendo1, Sara Fuertes1, Antonio Martín1
1Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza, Pedro Cerbuna 12, 50009 Zaragoza, Spain.
Inorganic chemistry
|March 8, 2024
概括
新的 (II) 二核复合物被合成并氧化成 (III) 衍生物. 这些二白金(III) 复合体表现出可调节的近红外辐射,受到轴联体和温度的影响.
科学领域:
- 协调化学 协调化学
- 有机金属化学 有机金属化学
- 材料科学 材料科学 材料科学
背景情况:
- 双核复合物由于其独特的电子和光物理特性而引起人们的兴趣.
- 了解金属与金属的相互作用和连接体的影响对于设计新型功能材料至关重要.
研究的目的:
- 为了合成和表征新的半灯塔Pt (II) 双核复合体.
- 研究这些复合物的氧化到二 (((III) 衍生物.
- 探索由此产生的Pt (II) 和Pt (III) 系统的光物理性质,特别是近红外辐射.
主要方法:
- 合成半灯Pt(II) 双核复合物与特定的配体 (1-纳夫二-1-H-pyrazole和mercaptopyrimidines).
- 在各种条件下 (空气,阳光,黑暗) 使用光环形的氧化反应.
- 单晶X射线衍射用于结构阐明.
- 光谱分析 (吸收和发射) 和密度函数理论 (DFT) 的计算.
主要成果:
- 选择性合成单个异构体的Pt(II) 双核复合体与短的Pt-Pt距离.
- 氧化二 (((III) 衍生物与 Pt-Pt 键的形成,受轴联体的影响.
- 可调节的低能吸收和广泛的近红外 (NIR) 辐射 (985-1070nm在RT) 的观测,取决于轴联体和温度.
结论:
- 合成的双核复合体Pt (II) 和Pt (III) 显示出可控制的光物理性质.
- 轴联体在调整电子结构和排放特征方面发挥着重要作用.
- 这些发现为潜在的光电子应用提供了对复合物的结构性质关系的见解.
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