一种同质感的稀土金属四甲基英达酸
Philipp Wetzel1, Cäcilia Maichle-Mössmer1, Reiner Anwander1
1Institut für Anorganische Chemie, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 18, D-72076 Tübingen, Germany. reiner.anwander@uni-tuebingen.de.
研究人员合成了一种新型的同质感兰他四甲基酸复合物,La(InMe4)3.3. 这种化合物表现出独特的热性能和集群形成,为稀土金属前体化学提供了新的可能性.
科学领域:
- 有机金属化学 有机金属化学
- 材料科学 材料科学 材料科学
- 稀土化学 稀土化学
背景情况:
- 同质感稀土金属复合物是各种化学应用中的有价值的前体.
- 兰四甲基氨酸和酸盐复合物已经在合成中发挥了重要作用.
- 了解相关的复合物的反应性和特性对于扩大合成能力至关重要.
研究的目的:
- 为了合成和描述新型的同质感兰他四甲基酸复合物,La(InMe4)3.3.
- 调查La(InMe4)3.4的热可变性和集群形成行为.
- 探索其作为新化学转换的前体的潜力.
主要方法:
- 通过捐赠者协助的四甲基酸/四甲基酸交换来合成La(InMe4) 3.
- 热处理并添加多余的供体 (Me3TACN) 来诱导集群形成.
- 由此产生的复合体和集群的结晶学表征.
主要成果:
- 成功合成了La(InMe4) 3 ,这是第一个结晶学上表征的同质的稀土金属四甲.
- 观察显著的热可变性和形成不同的集群,La4In7(C) ((CH) 2 ((CH2) 2 ((CH3) 19和La5In9 ((CH) 6 ((CH3) 24) .
- 通过使用Me3TACN. 识别捐赠者触发的中间体.
结论:
- La(InMe4) 3是一种新且可合成的同质感稀土金属复合物.
- 它独特的热行为和对集群形成的倾向使其与和的同源区分开来.
- 这种复合物作为新型-化学的多功能前体.
更多相关视频
07:24Hyperspectral Imaging as a Tool to Study Optical Anisotropy in Lanthanide-Based Molecular Single Crystals
Published on: April 14, 2020
12:43The Synthesis of [Sn10SiSiMe334]2- Using a Metastable SnI Halide Solution Synthesized via a Co-condensation Technique
Published on: November 28, 2016
相关概念视频
Stereoisomerism
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...
EDTA: Chemistry and Properties
Valence Bond Theory
Colors and Magnetism
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...
Metal-Ligand Bonds
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...
Crystal Field Theory - Tetrahedral and Square Planar Complexes
Crystal field theory (CFT) is applicable to molecules in geometries other than octahedral. In octahedral complexes, the lobes of the dx2−y2 and dz2 orbitals point directly at the ligands. For tetrahedral complexes, the d orbitals remain in place, but with only four ligands located between the axes. None of the orbitals points directly at the tetrahedral ligands. However, the dx2−y2 and dz2 orbitals (along the Cartesian axes) overlap with the ligands less than the dxy,...
