氧化物-氧化物对氧化物的协调.
Ananya Saju1, Matthew R Crawley1, Samantha N MacMillan2
1Department of Chemistry, University at Buffalo, State University of New York, Buffalo, NY 14260, USA.
Molecules (Basel, Switzerland)
|October 16, 2024
概括
(III) 化物复合物与N-氧化物联体具有反应性,并分解为 (II). 这些复合物可以化诸如甲的有机化合物,表现出由N-氧化物协调影响的独特反应性.
科学领域:
- 无机化学 无机化学 有机化学
- 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:
- ((III) 化物 (MnCl3) 复合物由于其可变的氧化状态和潜在的催化应用而引起人们的兴趣.
- 氧化物联体,如三甲基氧化物 (Me3NO) 和氧化物氧化物 (PyNO),可以影响金属复合物的电子和硬质性质.
- 了解 (III) 复合物的反应性对于开发新的合成方法和催化系统至关重要.
研究的目的:
- 为了合成和表征Mn(III) 化物复合物与N-氧化物化物联体协调.
- 调查这些新型Mn (III) 复合物的反应和分解途径.
- 探索N-氧化物协调对Mn (III) 复合物的还原潜力和反应性的影响.
主要方法:
- 合成Mn(III) 化物复合物与三甲基-N-氧化物和胺-N-氧化物联体.
- 使用光谱和晶体学技术对合成化合物的表征.
- 涉及分解途径和与甲 (HMB) 等有机基质发生反应的反应性研究.
主要成果:
- 新型Mn(III) 化物复合物与Me3NO和PyNO配体成功合成和表征.
- 这些复合物表现出显著的反应性,易于分解为Mn(II) 种,例如2D聚合物网络[MnII(μ-Cl) 3MnII(μ-ONMe3)]n[MnII(μ-Cl) 3n·(Me3NO·HCl) 3n.
- 与HMB的反应产生了化产物1-甲基-2,3,4,5,6-甲基,表明化能力.
- 相比之下,与TEMPO的反应导致电子转移,形成一个酸盐物种而不是一个 adduct.
结论:
- N-氧化物化连接体在稳定和调节Mn(III) 复合物的反应性方面发挥着至关重要的作用.
- 观察到的分解和化反应凸显了这些复合物作为反应性中间体或前体的潜力.
- 使用TEMPO观察到的明显反应性表明,N-氧化物协调所赋予的电子性质显著影响氧化还原行为.
更多相关视频
10:42Combining Solid-state and Solution-based Techniques: Synthesis and Reactivity of ChalcogenidoplumbatesII or IV
Published on: December 29, 2016
10.6K
05:47Preparation of Polyoxometalate-based Photo-responsive Membranes for the Photo-activation of Manganese Oxide Catalysts
Published on: August 7, 2018
7.6K
相关概念视频
02:54Coordination Compounds and Nomenclature
21.2K
In most main group element compounds, the valence electrons of the isolated atoms combine to form chemical bonds that satisfy the octet rule. For instance, the four valence electrons of carbon overlap with electrons from four hydrogen atoms to form CH4. The one valence electron leaves sodium and adds to the seven valence electrons of chlorine to form the ionic formula unit NaCl (Figure 1a). Transition metals do not normally bond in this fashion. They primarily form coordinate covalent bonds, a...
21.2K
02:57Coordination Number and Geometry
15.6K
For transition metal complexes, the coordination number determines the geometry around the central metal ion. Table 1 compares coordination numbers to molecular geometry. The most common structures of the complexes in coordination compounds are octahedral, tetrahedral, and square planar.
15.6K
02:42Ionic Crystal Structures
14.1K
Ionic crystals consist of two or more different kinds of ions that usually have different sizes. The packing of these ions into a crystal structure is more complex than the packing of metal atoms that are the same size.
Most monatomic ions behave as charged spheres, and their attraction for ions of opposite charge is the same in every direction. Consequently, stable structures for ionic compounds result (1) when ions of one charge are surrounded by as many ions as possible of the opposite...
Most monatomic ions behave as charged spheres, and their attraction for ions of opposite charge is the same in every direction. Consequently, stable structures for ionic compounds result (1) when ions of one charge are surrounded by as many ions as possible of the opposite...
14.1K
02:51Metal-Ligand Bonds
20.6K
The hemoglobin in the blood, the chlorophyll in green plants, vitamin B-12, and the catalyst used in the manufacture of polyethylene all contain coordination compounds. Ions of the metals, especially the transition metals, are likely to form complexes.
In these complexes, transition metals form coordinate covalent bonds, a kind of Lewis acid-base interaction in which both of the electrons in the bond are contributed by a donor (Lewis base) to an electron acceptor (Lewis acid). The Lewis acid in...
In these complexes, transition metals form coordinate covalent bonds, a kind of Lewis acid-base interaction in which both of the electrons in the bond are contributed by a donor (Lewis base) to an electron acceptor (Lewis acid). The Lewis acid in...
20.6K
02:34Structural Isomerism
19.1K
Isomerism in Complexes
Isomers are different chemical species that have the same chemical formula. Structural isomerism of coordination compounds can be divided into two subcategories, the linkage isomers and coordination-sphere isomers.
Linkage isomers occur when the coordination compound contains a ligand that can bind to the transition metal center through two different atoms. For example, the CN− ligand can bind through the carbon atom or through the nitrogen atom. Similarly, SCN− can...
Isomers are different chemical species that have the same chemical formula. Structural isomerism of coordination compounds can be divided into two subcategories, the linkage isomers and coordination-sphere isomers.
Linkage isomers occur when the coordination compound contains a ligand that can bind to the transition metal center through two different atoms. For example, the CN− ligand can bind through the carbon atom or through the nitrogen atom. Similarly, SCN− can...
19.1K
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