相关实验视频

Updated: Jul 5, 2025

Preparation of 6-aminocyclohepta-2,4-dien-1-one Derivatives via Tricarbonyltroponeiron

Preparation of 6-aminocyclohepta-2,4-dien-1-one Derivatives via Tricarbonyltroponeiron

Published on: August 12, 2019

跨和cis-μ-1,2-二铁III复合物的制剂

Yuji Kajita¹, Masaki Kubo², Hidekazu Arii³

¹Department of Applied Chemistry, Graduate School of Engineering, Aichi Institute of Technology, 1247 Yachigusa, Yakusa-cho, Toyota 470-0392, Japan.

Molecules (Basel, Switzerland)

|January 11, 2024

概括

一个新的铁 (II) 复合物与三 (基氨基) 环素与二氧化物反应,形成了一个跨μ-1,2-氧复合物. 这种过氧复合物进一步被修改为产生cis-μ-1,2-peroxodiiron (III) 复合物,通过光谱学和DFT计算得到确认.

科学领域:

无机化学无机化学
有机金属化学有机金属化学
协调化学协调化学

背景情况:

铁复合物在各种催化过程中至关重要.
了解铁二氧化碳添加物的反应性是生物无机化学的关键.
合成和表征具有特定连接体的新型铁复合体对于探索新的反应性很重要.

研究的目的:

为了合成和表征一种新型的铁(II) 复合物与cis,cis-1,3,5-tris(benzylamino) 环素 (Bn3CY).
为了研究铁 (II) 复合物与二氧化物的反应,形成过氧物种.
为了进一步功能化氧复合体,并对由此产生的二铁 (III) 复合体进行表征.

主要方法:

铁 (II) 复合物的合成和表征.
在低温 (-60°C) 中与二氧化碳在乙中发生反应.
光谱研究包括共振拉曼和1H-NMR.
密度函数理论 (DFT) 计算用于光谱解释.

主要成果:

合成了铁(II) 复合物 (1),并与O2反应,形成了一个跨-μ-1,2-peroxo复合物 (2).
过氧复合物 (2) 与酸离子的反应产生了一个cis-μ-1,2-peroxodiiron (III) 复合物 (3).
光谱数据和DFT计算证实了过氧复合物的结构和结合方式.

结论:

该研究成功地合成和表征了具有独特连接体的新型铁过氧复合物.
阐明了铁 (II) 复合体对二氧化物的反应性和随后的功能化.
这些发现为铁过氧物种的结构多样性和光谱特性提供了洞察力.

关键词:

DFT计算方法的计算方法在X射线中,晶体结构具有X射线晶体结构.cis-μ-1,2-氧铁复合体的复合体.响应拉曼频谱拉曼频谱跨μ-1,2-氧铁复合体

更多相关视频

The Synthesis, Characterization and Reactivity of a Series of Ruthenium N-triphosPh Complexes

The Synthesis, Characterization and Reactivity of a Series of Ruthenium N-triphosPh Complexes

Published on: April 10, 2015

Accessing Valuable Ligand Supports for Transition Metals: A Modified, Intermediate Scale Preparation of 1,2,3,4,5-Pentamethylcyclopentadiene

Accessing Valuable Ligand Supports for Transition Metals: A Modified, Intermediate Scale Preparation of 1,2,3,4,5-Pentamethylcyclopentadiene

Published on: March 20, 2017

相关概念视频

Oxidation of Alkenes: Anti Dihydroxylation with Peroxy Acids

Oxidation of Alkenes: Anti Dihydroxylation with Peroxy Acids

Diols are compounds with two hydroxyl groups. In addition to syn dihydroxylation, diols can also be synthesized through the process of anti dihydroxylation. The process involves treating an alkene with a peroxycarboxylic acid to form an epoxide. Epoxides are highly strained three-membered rings with oxygen and two carbons occupying the corners of an equilateral triangle. This step is followed by ring-opening of the epoxide in the presence of an aqueous acid to give a trans diol.

Preparation of Epoxides

Preparation of Epoxides

Overview
Epoxides result from alkene oxidation, which can be achieved by a) air, b) peroxy acids, c) hypochlorous acids, and d) halohydrin cyclization.
Epoxidation with Peroxy Acids
Epoxidation of alkenes via oxidation with peroxy acids involves the conversion of a carbon–carbon double bond to an epoxide using the oxidizing agent meta-chloroperoxybenzoic acid, commonly known as MCPBA. Since the O–O bond of peroxy acids is very weak, the addition of electrophilic oxygen of...

Oxidation of Alkenes: Syn Dihydroxylation with Potassium Permanganate

Oxidation of Alkenes: Syn Dihydroxylation with Potassium Permanganate

Alkenes can be dihydroxylated using potassium permanganate. The method encompasses the reaction of an alkene with a cold, dilute solution of potassium permanganate under basic conditions to form a cis-diol along with a brown precipitate of manganese dioxide.

Properties of Transition Metals

Properties of Transition Metals

Transition metals are defined as those elements that have partially filled d orbitals. As shown in Figure 1, the d-block elements in groups 3–12 are transition elements. The f-block elements, also called inner transition metals (the lanthanides and actinides), also meet this criterion because the d orbital is partially occupied before the f orbitals.

Stereoisomerism

Stereoisomerism

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...

Colors and Magnetism

Colors and Magnetism

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...