Fluorescent Sulphur‐ and Nitrogen‐Containing Porous Polymers with Tuneable Donor–Acceptor Domains for Light‐Driven Hydrogen Evolution
作者:Dana Schwarz、Amitava Acharja、Arun Ichangi、Pengbo Lyu、Maksym V. Opanasenko、Fabian R. Goßler、Tobias A. F. König、Jiří Čejka、Petr Nachtigall、Arne Thomas、Michael J. Bojdys
DOI:10.1002/chem.201802902
日期:2018.8.14
attempts to tune the bandgap of polymer photocatalysts classically rely on variations of the sizes of their π‐conjugated domains. However, only donor–acceptor dyads hold the key to prevent undesired electron‐hole recombination within the catalyst via efficient charge separation. Building on our previous success in incorporating electron‐donating, sulphur‐containing linkers and electron‐withdrawing
光驱动的水分解是潜在的丰富,清洁能源的来源,但是要有效地进行电荷分离以及带隙在多相光催化剂中的大小和位置,要进行预测和设计都充满了挑战。调节聚合物光催化剂带隙的合成尝试通常依赖于其π共轭结构域大小的变化。然而,只有施主-受主二元才是通过有效的电荷分离来防止催化剂内不希望的电子-空穴复合的关键。在我们先前成功地将供电子,含硫连接子和吸电子三嗪(C 3 N 3)单元成多孔聚合物,我们报告了六种具有高杂原子含量的S和N的可见光活性三嗪基聚合物的合成,这些聚合物可光催化从水中产生H 2:高达915μmolh -1 g -1含Pt助催化剂,并且-迄今报道的最高值之一-200μmolh -1 g -1无。我们采用了高度模块化的Sonogashira–Ha原交叉偶联反应,可以对仅含(S,N,C)和(N,C)混合聚合物系统进行系统研究。我们的结果表明,光催化水分解不仅需要约2.2 eV的理想光学带
New Donor-Functionalized Cp Ligands: Synthesis and Complexation Behaviour of Quinoxalyl and Benzothiadiazolyl Systems
and leads to the newdonor-functionalizedligand CpBTZ. Related quinoxalylCpsystems have been prepared using Pd-catalyzed coupling with zincated Cp-metal complexes. The newligands comprise two N-donor atoms; one of them is located in a distal position relative to the metal centre so that it cannotcoordinate in a chelating manner. With CpBTZ ligand derivatives severalmetal complexes have been synthesized
An unprecedented 3D 8-connected pure inorganic framework based on nanosized {[Na12PO16H24]⊂[P4Mo6O31H6]4}15− clusters and zinc cations
作者:Dong-Ying Du、Jun-Sheng Qin、Yang-Guang Li、Shun-Li Li、Ya-Qian Lan、Xin-Long Wang、Kui-Zhan Shao、Zhong-Min Su、En-Bo Wang
DOI:10.1039/c0cc04343e
日期:——
The first 3D uninodal eight-connected P4Mo6O31H6}-based pure inorganic framework linked by transition metal ions has been synthesized and its electrochemical behavior and diffuse reflectance UV-Vis spectrum were investigated.