四种新型环铂(II)配合物Pt(ppy)(acac-C 6 H 4 I-4)(1),Pt(ppy)(acac-C 6 H 4 t -Bu-4)(2),Pt [ dF(CF 3)ppy](acac-C 6 H 4 I-4)(3)和Pt [dF(CF 3)ppy](acac-C 6 H 4 t -Bu-4)(4)基于合成并表征了2-苯基吡啶(ppy)或2-(2,4-二氟苯基)-5-(三氟甲基)吡啶[dF(CF 3)ppy]配体。配合物4具有两个具有不同颜色和发光度的异构体。黄绿色4G发出绿色发光,而橙色4O发出红色发光。配合物1,2和4G显示机械发光具有一介于约的发光红移 94–135 nm。而3和4O对机械研磨无响应。对晶体结构,TGA,发光光谱和PXRD的系统研究表明,1和2的机械发光是由于π-π相互作用的形成,而4G的机理是机械研磨过程中F⋯F相互作用的破坏。所有复合物在CHCl 3溶液
Catalytic Carbocation Generation Enabled by the Mesolytic Cleavage of Alkoxyamine Radical Cations
作者:Qilei Zhu、Emily C. Gentry、Robert R. Knowles
DOI:10.1002/anie.201604619
日期:2016.8.16
weak C−O bond. Spontaneous scission results in the formation of the stable nitroxyl radical TEMPO. as well as a reactive carbocation intermediate that can be intercepted by a wide range of nucleophiles. Notably, this process occurs underneutralconditions and at comparatively mild potentials, enabling catalytic cation generation in the presence of both acid sensitive and easily oxidized nucleophilic
Merging Photoredox and Organometallic Catalysts in a Metal–Organic Framework Significantly Boosts Photocatalytic Activities
作者:Yuan‐Yuan Zhu、Guangxu Lan、Yingjie Fan、Samuel S. Veroneau、Yang Song、Daniel Micheroni、Wenbin Lin
DOI:10.1002/anie.201809493
日期:2018.10.22
Metal–organic frameworks (MOFs) have been extensively used for single‐site catalysis and lightharvesting, but their application in multicomponent photocatalysis is unexplored. We report here the successful incorporation of an IrIII photoredox catalyst and a NiII cross‐couplingcatalyst into a stable Zr12 MOF, Zr12‐Ir‐Ni, to efficiently catalyze C−S bond formation between various aryl iodides and thiols
COMPOSITIONS AND METHODS OF PROMOTING ORGANIC PHOTOCATALYSIS
申请人:THE REGENTS OF THE UNIVERSITY OF COLORADO, A BODY CORPORATE
公开号:US20180237550A1
公开(公告)日:2018-08-23
The invention provides novel compounds and methods that are useful in promoting reactions that proceed through an oxidative quenching pathway. In certain embodiments, the reactions comprise atom transfer radical polymerization.
Synthesis of Supramolecular Iridium Catalysts and Their Use in Enantioselective Visible-Light-Induced Reactions
作者:Thorsten Bach、Alexander Böhm
DOI:10.1055/s-0035-1561378
日期:——
Iridiumcomplexes were prepared which are covalently linked via a bipyridine ligand to a chiral octahydro-1H-4,7-methanoisoindol-1-one skeleton. The skeleton allows for two-point hydrogen bonding to prochiral lactams, which can be processed in iridium-catalyzed photochemical reactions. Attempts to use the iridiumcomplexes in reactions, which typically involve photoinduced electron transfer, failed
[EN] FLUORINE-CONTAINING COMPOUNDS FOR USE AS NUCLEOPHILIC REAGENTS FOR TRANSFERRING FUNCTIONAL GROUPS ONTO HIGH VALUE ORGANIC COMPOUNDS<br/>[FR] COMPOSÉS CONTENANT DU FLUOR DESTINÉS À ÊTRE UTILISÉS EN TANT QUE RÉACTIFS NUCLÉOPHILES POUR TRANSFÉRER DES GROUPES FONCTIONNELS SUR DES COMPOSÉS ORGANIQUES À VALEUR ÉLEVÉE
申请人:UNIV BERLIN FREIE
公开号:WO2020141195A1
公开(公告)日:2020-07-09
The present invention relates to a compound of general formulae (I) and their use as reagents