Salen refers to a tetradentate C 2-symmetric ligand synthesized from salicylaldehyde (sal) and ethylenediamine (en). It may also refer to a class of compounds, which are structurally related to the classical salen ligand, primarily bis-Schiff bases.

Salen 是一类 配位化学 和 均相催化 中常用的 螯合 配体。 Salen这个名字是由 水杨醛 （sal icylaldehyde）和 乙二胺 （ethylenediamine， en）组合而成的。 这种配体是淡黄色云母状固体，可溶于 极性 有机溶剂。 在前人 卟啉 配合物研究的基础上，Jacobsen与Katsuki设计出与之类似的salen配体，并应用于不对称催化反应中，这个以手性Salen-Mn (III)配合物为 氧化剂 的反应被称为 Jacobsen环氧化反应。 [1][2] 联苯酚H 2 salen是 配体 salen 2- 的 共轭酸。 但这个术语使 …

Salen配体 由伯二胺类化合物和水杨醛类化合物制备得到，是一类配位化学和均相催化中常用的螯合配体，能够与金属离子形成稳定的金属-Salen络合物，作为催化剂使用。由于(1)Salen配体合成便捷，反应后可回收和重复使用；(2)配位能力强，能与多种金属离子形成 ...

Salen | C16H16N2O2 | CID 26518 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more.

In this paper, three main methods of metal ion separation, i.e., liquid-liquid extraction, transport across polymer inclusion membranes (PIMs), and sorption/desorption, are described. In all of them, N,N'-bis(salicylidene)ethylenediamine (salen) was used as …

采用XPS、UV PES和NEXAFS光谱实验方法并结合DFT计算，对H2 (Salen)分子和 [Ni (Salen)]配合物中salen配体的电子结构进行了比较研究。 当从分子传递到复合物时，在 salen 配体原子的 1s PE 光谱中观察到 +1.0 eV（碳）、+1.9 eV（氮）和 -0.4 eV（氧）的显着化学位移，明确表明显着的化学位移这些原子之间价电子密度的重新分布。 有人提出，电子密度转移到 [Ni (Salen)]中的O原子不仅发生在Ni原子上，还发生在N和C原子上。 这一过程似乎是通过配体分子的苯酚 C 2p …

2020年1月23日 · The salen and related ligands are very popular among the inorganic chemists due to multiple reasons such as ease in synthesis, coordinating ability with very long range of metal ions, facilitating the metal ions to adopt various geometries, ability of stabilising the metal ion in variable oxidation states and potential applications of ...

2023年6月7日 · A comparative study of the electronic structure of the salen ligand in the H2(Salen) molecule and the [Ni(Salen)] complex was performed using the experimental methods of XPS, UV PES, and NEXAFS spectroscopy along with DFT calculations.

2019年6月1日 · These compounds are known as salen (occasionally called sal2en), they contain two N-imine and two O-phenolate atoms as potential donors to metal ions, this normally corresponding to a very good chelating ability.

A comparative study of the electronic structure of the salen ligand in the H2(Salen) molecule and the [Ni(Salen)] complex was performed using the experimental methods of XPS, UV PES, and...