两个三维LnIII协调聚合物表现出发光感应和磁热效应
Tian-Tian Wang1, Qi Tan1, Wen-Bin Sun1
1Key Laboratory of Functional Inorganic Material Chemistry Ministry of Education, School of Chemistry and Material Science Heilongjiang University, 74 Xuefu Road, Harbin 150080, P. R. China.
Inorganic chemistry
|May 30, 2024
概括
兰化物协调聚合物可以灵敏地检测水中的2,6-二二林酸 (DPA). 综合体1显示DPA添加后可见的发光量下降,这对于炭病检测很有用.
科学领域:
- 协调化学 协调化学
- 材料科学 材料科学 材料科学
- 分析化学 分析化学
背景情况:
- 兰化物复合物正在探索用于传感应用.
- 奎诺林-2-碳素酸是一种用于制造协调聚合物的多功能连接体.
- 敏感检测2,6 - 狄皮科林酸 (DPA) 对于各种应用,包括炭病检测至关重要.
研究的目的:
- 为了合成和表征新型兰坦化协调聚合物.
- 研究合成复合物的发光性质,特别是它们对2,6-二皮可林酸 (DPA) 的反应.
- 评估这些复合物的潜力,以在现实世界样本中敏感和选择性地检测DPA.
主要方法:
- 合成和表征两种兰化物3D协调聚合物,Ln2 (L) 4Cl2 (H2O) 4 (Ln = Eu,Gd),使用oline-2-carboxylic 酸 (HL).
- 发光光谱学被用来研究欧复合物 (1) 对自来水中的DPA的反应.
- 在低温和高磁场下测量了加多复合物的磁性特性 (2).
主要成果:
- 综合体1 (Europium) 证明了对自来水中的DPA具有高度敏感和选择性的发光灭反应.
- 复合体1的发光强度在添加DPA后明显下降,检测极限为3.36μM.
- 综合体1显示了常见的生物分子和离子的最小干扰.
- 复合物2 (加多) 在7T和3K时的最大变化为23.56J kg-1 K-1.
结论:
- 兰化物协调聚合物,特别是复合物1,可以有效地用于敏感和选择性检测DPA.
- 观察到的发光火为开发真实样本中DPA的分析方法提供了基础.
- 这项研究突出了兰化物复合物在传感和磁性应用中的双重功能.
相关概念视频
Colors 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
Photoluminescence: Applications
387
Photoluminescence offers a wide range of applications due to its inherent sensitivity and selectivity. This technique allows for both direct and indirect analyses of the analyte. Direct quantitative analysis is possible when the analyte exhibits a favorable quantum yield for fluorescence or phosphorescence. However, an indirect analysis may be feasible if the analyte is not fluorescent or phosphorescent, or if the quantum yield is unfavorable. Indirect methods include reacting the analyte with...
387
Valence 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
Structural 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
Metal-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
Stereoisomerism
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


