Metal cluster/ruthenium photosensitizer/cobalt phthalocyanine synergistic photocatalytic cycloaddition of carbon dioxide and propylene oxide
作者:Tingting Wang、Longchao Du、Kelong Liu
DOI:10.1016/j.mcat.2023.113764
日期:2024.1
The cycloaddition of CO2 and propylene oxide (PO) is of great significance to green chemistry and resource utilization. Here, two new metal clusters and four ruthenium photosensitizers were synthesized, and a series of composite catalysts were prepared by combining them with cobalt phthalocyanine. Light was introduced into the reaction system and it was found that TON increased from 550 (0 W) to 990
Coordination Synergy between Iridium Photosensitizers and Metal Nanoclusters Leading to Enhanced CO2 Cycloaddition under Mild Conditions
作者:Kelong Liu、Longchao Du、Tingting Wang
DOI:10.1021/acs.inorgchem.3c04181
日期:2024.3.11
photocatalytic CO2 and epoxide cycloaddition under mild conditions such as room temperature and atmospheric pressure is important for green chemistry, which can be achieved by developing coordination synergies between catalysts and photosensitizers. In this context, we exploit the use of coordinate bonds to connect pyridine-appended iridium photosensitizers and catalysts for CO2 cycloaddition, which is systematically
在室温和常压等温和条件下实现光催化CO 2与环氧化物环加成对于绿色化学具有重要意义,这可以通过催化剂和光敏剂之间的配位协同作用来实现。在此背景下,我们利用配位键连接吡啶铱光敏剂和CO 2环加成催化剂,并通过1 H核磁共振滴定和X射线光电子能谱测量系统地证明了这一点。结果表明,具有配位协同作用的杂化Ir(Cltpy) 2 /Mn 2 Cd 4光催化体系表现出优异的催化性能(产率约98.2%),比对比Ir(Cltpy-Ph) 2 /提高了3.75倍。无配位协同作用的Mn 2 Cd 4体系(收率≈26.2%),条件温和。 Mn 2 Cd 4催化剂与Ir(Cltpy) 2光敏剂之间的配位增强了Mn 2 Cd 4催化剂的光吸收和光响应性能。这已通过瞬态光电流、电化学阻抗和电子顺磁测试得到证实。因此,通过利用温和的条件提高了环加成的效率。
Synthesis, structure, and luminescence properties of arylpyridine-substituted terpyridine Zn(II) and Cd(II) complexes
作者:Emi Kubota、Young Hoon Lee、Akira Fuyuhiro、Satoshi Kawata、Jack M. Harrowfield、Yang Kim、Shinya Hayami
DOI:10.1016/j.poly.2012.08.054
日期:2013.3
Two terpyridine derivatives, 4'-(4-(pyridin-4-yl)phenyl)-[2,2':6',2 '']terpyridine (L1) and 4'-(4'-(pyridin-4-yl)-[1,1'-biphenyl]-4-yl)-[2,2':6',2 '']terpyridine (L2) have been synthesized by palladium-catalyzed cross-coupling reactions, and their metal complexes [Zn(L1)(2)](ClO4)(2)center dot 2MeOH center dot CHCl3 (1) and [Cd(L2)(2)] (ClO4)(2)center dot DMF.2.8H(2)O (2) characterized by single crystal X-ray crystallography and spectroscopic methods including electronic absorption and emission measurements. In the crystalline materials, both metal ions have the expected pseudo-octahedral N-6 coordination environment and the lattice structures appear to be influenced by aromatic aromatic interactions involving the heteroaryl tails and the pyridyl rings of the terpyridine units. In solution and in the solid state, the complexes display blue emission attributed to an intramolecular charge transfer transition. (C) 2012 Elsevier Ltd. All rights reserved.
Photoluminescence and Nonlinear Optical Properties of Two Terpyridine-Based Hybrid Zn/Cd Halides
作者:Sihan Wang、Zhengli Liang、Xinluan Song、Xin Huang、Lehui Liu、Xingxing Jiang、Zheshuai Lin、Hongming Liu