相关实验视频

Updated: Jul 9, 2025

Microfluidic-based Synthesis of Covalent Organic Frameworks COFs: A Tool for Continuous Production of COF Fibers and Direct Printing on a Surface

Microfluidic-based Synthesis of Covalent Organic Frameworks COFs: A Tool for Continuous Production of COF Fibers and Direct Printing on a Surface

Published on: July 10, 2017

构建多功能共价有机框架用于光催化

Zhi Chen¹, Jian-Cheng Wang¹, Jia-Qi Du¹

¹College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Normal University, No.88 East Wenhua Road, Lixia District, Ji'nan, 250014, P. R. China.

Chemistry (Weinheim an der Bergstrasse, Germany)

|November 28, 2023

概括

这项研究引入了一种新型的共价有机框架 (COF),作为一种多功能光催化剂. 在TAPA-BPy-COF有效催化硫醇氧化,当金属化,通过级联反应促进复杂的有机合成.

科学领域:

材料科学材料科学材料科学
有机化学有机化学
光催化作用的光催化

背景情况:

共价有机框架 (COF) 是具有光催化显著潜力的新兴材料.
开发多功能COF对于推进催化应用至关重要.

研究的目的:

合成和表征一种新型的多功能COF,其中包括三胺 (TPA) 和2.2'-双胺 (2,2'-双) 单元.
评估合成的COF (TAPA-BPy-COF) 在氧化合反应和金属催化级联反应中的催化活性.

主要方法:

通过设计的有机反应合成TAPA-BPy-COF.
使用TAPA-BPy-COF.的方法,异质光催化氧化硫醇到二硫化物.
将TAPA-BPy-COF与Pd(II) 的金属化形成Pd@TAPA-BPy-COF.
使用Pd@TAPA-BPy-COF.COF进行3 - 烯胺的级联光催化合成.

主要成果:

合成的TAPA-BPy-COF表现出有效的异质光催化活性,用于硫醇的氧化合.
金属化Pd@TAPA-BPy-COF有效地促进了3 - 烯胺的光催化合成,通过一个级联过程.
该研究展示了COF在各种催化转换中的多功能性.

结论:

开发的TAPA-BPy-COF是一种有前途的多功能材料用于光催化.
这项工作为设计用于各种化学合成的先进光活性COF提供了蓝图.
化策略增强了COF在复杂有机转化中的催化能力.

关键词:

2,2′-双二二二二二二共价有机框架 (COFs) 是一种共价有机框架.多功能COF是一种多功能COF.光催化作用的光催化三烯胺是什么?三烯胺是什么?

更多相关视频

A Technical Guide for Performing Spectroscopic Measurements on Metal-Organic Frameworks

A Technical Guide for Performing Spectroscopic Measurements on Metal-Organic Frameworks

Published on: April 28, 2023

Synthesis of Single-Crystalline Core-Shell Metal-Organic Frameworks

Synthesis of Single-Crystalline Core-Shell Metal-Organic Frameworks

Published on: February 10, 2023

相关概念视频

Cycloaddition Reactions: MO Requirements for Photochemical Activation

Cycloaddition Reactions: MO Requirements for Photochemical Activation

Some cycloaddition reactions are activated by heat, while others are initiated by light. For example, a [2 + 2] cycloaddition between two ethylene molecules occurs only in the presence of light. It is photochemically allowed but thermally forbidden.

Thermal and Photochemical Electrocyclic Reactions: Overview

Thermal and Photochemical Electrocyclic Reactions: Overview

Electrocyclic reactions are reversible reactions. They involve an intramolecular cyclization or ring-opening of a conjugated polyene. Shown below are two examples of electrocyclic reactions. In the first reaction, the formation of the cyclic product is favored. In contrast, in the second reaction, ring-opening is favored due to the high ring strain associated with cyclobutene formation.

Photochemical Electrocyclic Reactions: Stereochemistry

Photochemical Electrocyclic Reactions: Stereochemistry

The absorption of UV–visible light by conjugated systems causes the promotion of an electron from the ground state to the excited state. Consequently, photochemical electrocyclic reactions proceed via the excited-state HOMO rather than the ground-state HOMO. Since the ground- and excited-state HOMOs have different symmetries, the stereochemical outcome of electrocyclic reactions depends on the mode of activation; i.e., thermal or photochemical.
Selection Rules: Photochemical Activation