热和光诱导的价值复合体,在铁三二胺复合体中具有协同的旋转过渡
Jett T Janetzki1, Dominic S Brown1, Florian Daumann2
1School of Chemistry, University of Melbourne Victoria 3010 Australia c.boskovic@unimelb.edu.au.
Chemical science
|March 6, 2025
概括
这项研究引入了一种新的铁复合体,表现出价值分离体 (VT) 和旋转过渡. 这种铁复合体可以使用热或光进行切换,为分子开关提供了新的途径.
科学领域:
- 无机化学 无机化学 有机化学
- 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:
- 旋转交叉 (SCO) 和价值互 (VT) 是分子开关的关键现象.
- 铁和复合物通常分别用于SCO和VT.
- 探索新的连接体系统对于新的SCO和VT行为至关重要.
研究的目的:
- 为了合成和表征金属复合物与氧化还原活性 bis((phenyl) imino) acenaphthene (Ph-BIAN) 配体.
- 调查这些新综合体中SCO或VT现象的潜力.
- 探索基于铁的系统中的刺激反应行为.
主要方法:
- 合成[M(Ph-BIAN) 3](BPh4) 2复合体 (M = Zn,Co,Mn,Fe) 的方法.
- 可变温度固态和溶液态光谱学 (UV-Vis,Mössbauer). 变量温度固态和溶液状态光谱学 (UV-Vis,Mössbauer).
- 磁感应度测量和电化学分析.
主要成果:
- Zn,Co和Mn复合体 (1-3) 显示了温度不变的M(II) -L0) 3状态.
- 铁复合物 (4) 呈现出一个价值复合体 (VT) 过程:LS-Fe (III) - (L ̇−) - (L0) 2 HS-Fe (II) - (L0) 3.3.
- 这种VT与旋转过渡相结合,这是铁复合体与氧化还原活性连接体的独特行为.
- 观察到光诱导的VT,这种现象以前仅限于二氧化系统.
结论:
- 发现了一种新的铁复合体,显示了热和光诱导的性复合体,加上旋转过渡.
- 这项工作将VT的范围扩展到铁系统,并展示了光学控制.
- 这些发现为开发多刺激响应分子开关开辟了新的途径.
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