在Ga/In-Hydroxamate金属有机材料中的结构多样性
Wenjing Wu1, Zikang Qin2, Xiangping Duan1
1School of Chemical Engineering, Sichuan University, Chengdu 610065, China.
Inorganic chemistry
|May 21, 2024
概括
研究人员使用一种新型曲连接体开发了强大的金属有机材料 (MOM). 这些材料表现出多样化的结构,并显示出对二氧化碳分离应用的希望.
科学领域:
- 材料科学 材料科学 材料科学
- 协调化学 协调化学
- 纳米技术纳米技术
背景情况:
- 开发具有化学强度的金属有机材料 (MOM) 对其应用至关重要.
- 化构建单元为稳定的MOM提供了一条途径.
- 为了构建各种MOM架构,酸盐连接物被探索.
研究的目的:
- 为了引入一个"曲"的 thiophene-2,5-dihydroxamate 连接体,具有多种构造.
- 通过这种配体和13组金属 (Ga/In) 来合成和表征新型MOM.
- 探索酸盐的协调化学和由此产生的MOMs的潜在应用.
主要方法:
- 一个"曲"的thiophene-2,5-dihydroxamate连接体的合成.
- 使用Ga/In金属的四种金属有机材料 (MOM) 的结晶.
- MOMs的结构特征,包括一个0D金属有机多面体 (MOP),一个2DMOF和两个1D协调聚合物.
- 将SUM-81 MOP纳入混合矩阵膜以进行气体分离.
主要成果:
- 成功合成了四种结构多样化的MOM (0D MOP,2D MOF,1D聚合物).
- 在MOM结构中证明各种联结体构造.
- SUM-81 MOP 呈现出永久性的多孔性.
- 结合SUM-81的混合矩阵膜显示出令人印象深刻的CO2/N2分离性能.
结论:
- "曲"的酸联体使得能够构建具有多样性结构和协调化学的强大的MOM.
- 合成的MOM,特别是SUM-81 MOP,显示了气体分离应用的潜力.
- 这项工作扩大了对基于酸盐的MOM及其功能应用的理解.
相关概念视频
01:23Properties of Organometallic Compounds
990
Organometallic compounds are compounds that contain a carbon–metal bond. Carbon belongs to an organyl group like alkyl, aryl, allyl, or benzyl groups. The metal can be from Group I or Group II of the periodic table, a transition metal, or a semimetal.
990
02:34Structural Isomerism
19.2K
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...
19.2K
02:52Stereoisomerism
11.8K
Isomerism in Complexes
Isomers are different chemical species that have the same chemical formula.
Transition metal complexes often exist as geometric isomers, in which the same atoms are connected through the same types of bonds but with differences in their orientation in space. Coordination complexes with two different ligands in the cis and trans positions from a ligand of interest form isomers. For example, the octahedral [Co(NH3)4Cl2]+ ion has two isomers (Figure 1) In the cis...
Isomers are different chemical species that have the same chemical formula.
Transition metal complexes often exist as geometric isomers, in which the same atoms are connected through the same types of bonds but with differences in their orientation in space. Coordination complexes with two different ligands in the cis and trans positions from a ligand of interest form isomers. For example, the octahedral [Co(NH3)4Cl2]+ ion has two isomers (Figure 1) In the cis...
11.8K
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
02:34Regioselectivity and Stereochemistry of Acid-Catalyzed Hydration
8.4K
The rate of acid-catalyzed hydration of alkenes depends on the alkene's structure, as the presence of alkyl substituents at the double bond can significantly influence the rate.
8.4K
02:51Metal-Ligand Bonds
20.7K
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...
20.7K