具有光物理性质的光光体具有与Ru (II) 和Os (II) 复合体相竞争的光物理性质
Narayan Sinha1, Christina Wegeberg1, Daniel Häussinger1
1Department of Chemistry, University of Basel, Basel, Switzerland.
Nature chemistry
|August 14, 2023
概括
与其他第一排过渡金属相比,(0) 复合物表现出优异的光发光和兴奋状态寿命. 这些发现为光氧催化过程中丰富的第一排d6金属复合体开辟了新的可能性.
科学领域:
- 无机化学 无机化学
- 材料科学 材料科学 材料科学
- 摄影化学的使用.
背景情况:
- 贵金属d6复合物 (如RuII,OsII,IrIII) 对于照明,太阳能和光催化是至关重要的.
- 从丰富的第一排金属中开发高效的d6复合体一直是一个重大挑战.
研究的目的:
- 探索第一排过渡金属,特别是的潜力,用于先进的光物理和光化学应用.
- 为了证明分子设计可以在丰富的第一排d6金属复合体中实现竞争性特性.
主要方法:
- 合成和特征的异电子 (((0) 协调复合体.
- 研究光发光量子产量和激发状态寿命.
- 在光电还原催化过程中,对金属到联体电荷转移 (MLCT) 激发状态的评估.
主要成果:
- (0) 复合体显示出比先前报告的第一排d6金属复合体更高的光发光量子产量和更长的激发状态寿命.
- 这些Cr(0) 复合物的MLCT激发状态显示了与Os(II) 聚二烯具有竞争力的发光行为.
- 在红光照射下使用这些Cr0复合物有效地实现了基准化学减少.
结论:
- 异电子Cr(0) 复合物为需要高效光物理和光化学的应用提供了有希望的贵金属替代品.
- 这些Cr(0) 复合物使得第一排d6金属复合物的MLCT状态适用于光氧催化.
- 战略分子设计为在先进的化学过程中利用丰富的第一排d6金属开辟了新的途径.
![[DPEPhosbcpCu]PF6: A General and Broadly Applicable Copper-Based Photoredox Catalyst](/_next/image?url=https%3A%2F%2Fcloudfront.jove.com%2FCDNSource%2Fteasers%2F59739.jpg&w=3840&q=50)
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