![[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)
意想不到的超分子诱导的氧化转换在三明治Gd bisphthalocyaninate
Anna A Sinelshchikova1,2, Lyudmila A Lapkina3, Vladimir E Larchenko4
1BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain.
Inorganic chemistry
|April 25, 2024
概括
研究人员使用阴离子诱导组合控制了兰化物复合体中的氨酸氧化还原状态. 双层加多 (III) 复合物的这种结构变化促进了连接体的减少,影响了电色和导电性质.
科学领域:
- 超分子化学 超分子化学
- 协调化学 协调化学
- 材料科学 材料科学 材料科学
背景情况:
- 兰化物复合体中的甲联体的氧化还原状态对于它们的功能性质至关重要.
- 控制这些复合物的氧化还原状态和协调环境对于先进的应用是必不可少的.
研究的目的:
- 为了证明阴离子诱导的超分子组件用于控制在兰化物复合体中的甲联体的氧化还原状态.
- 调查与双层复合体中的阴子含有相关的结构和电子变化.
- 探索离子依赖的氧化还原开关机制.
主要方法:
- 合成冠置换的酸兰化物复合物,特别是双层Gd (III) 复合物.
- 结晶学分析以确定在阴离子纳入时的结构变化 (斜角,甲板对甲板的距离).
- 电化学研究用于监测不同盐存在的氧化还原切换行为.
主要成果:
- 在Gd(III) 双层复合体中通过分子内离子的包含实现了前所未有的氧化还原切换.
- 观察到连接体倾斜角度 (44.61°至0.21°) 显著下降,并且在加入阴离子时甲板对甲板的距离增加.
- 证明了离子依赖的氧化还原切换,只发生在弱酸 (KOPiv,KOAc) 的盐中,而不是强酸.
结论:
- 阴离子诱导的超分子组合提供了一种新的方法来控制phthalocyanine氧化还原状态和连接物协调.
- 由阴离子纳入驱动的结构重组极大地促进了连接体的减少.
- 这种离子依赖的氧化还原开关机制为调整酸材料的电色,导电性和光学性能开辟了新的可能性.
相关概念视频
01:20Diazonium Group Substitution with Halogens and Cyanide: Sandmeyer and Schiemann Reactions
1.9K
Arenediazonium substitution reactions occur when the diazonium group is substituted by various functional groups such as halides, hydroxyl, nitrile, etc. For instance, arenediazonium salts react with copper(I) salts of chloride, bromide, or cyanide to form corresponding aryl chlorides, bromides, and nitriles. These reactions are named Sandmeyer reactions. Although the mechanism of this reaction is complicated, as illustrated in Figure 1, they are believed to progress via an aryl copper...
1.9K
01:29Diels–Alder Reaction Forming Bridged Bicyclic Products: Stereochemistry
4.6K
Diels–Alder reactions between cyclic dienes locked in an s-cis configuration and dienophiles yield bridged bicyclic products.
4.6K
02:42Valence Bond Theory
8.5K
Coordination compounds and complexes exhibit different colors, geometries, and magnetic behavior, depending on the metal atom/ion and ligands from which they are composed. In an attempt to explain the bonding and structure of coordination complexes, Linus Pauling proposed the valence bond theory, or VBT, using the concepts of hybridization and the overlapping of the atomic orbitals. According to VBT, the central metal atom or ion (Lewis acid) hybridizes to provide empty orbitals of suitable...
8.5K
03:02Colors and Magnetism
11.6K
Color in Coordination Complexes
When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals. For many main group atoms and molecules, the absorbed photons are in the ultraviolet range of the electromagnetic spectrum, which cannot be detected by the human eye. For coordination compounds, the energy difference between the d orbitals often allows photons in the visible range to be absorbed and emitted, which is seen as colors by the human...
When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals. For many main group atoms and molecules, the absorbed photons are in the ultraviolet range of the electromagnetic spectrum, which cannot be detected by the human eye. For coordination compounds, the energy difference between the d orbitals often allows photons in the visible range to be absorbed and emitted, which is seen as colors by the human...
11.6K