Thiophene–Bipyridine Appended Diketopyrrolopyrrole Ligands and Platinum(II) Complexes
作者:Alexandre Abhervé、Maurizio Mastropasqua Talamo、Sara Boi、Vincent Poupard、Frédéric Gendron、Boris Le Guennic、Narcis Avarvari、Flavia Pop
DOI:10.1021/acs.inorgchem.1c00534
日期:2021.5.17
palladium(II) catalyzed direct cross-coupling reaction between decyl, (S)-2-methyl-butyl, and dodecyl N-substituted diketopyrrolopyrrole thiophene (DPPT), including a 3-methoxy-thiophene derivative, and 6-bromo-2,2′-bipyridine afforded a series of mono- and bis-bipyridine substituted DPPT ligands 1–3. Complexation reactions with PtCl2(DMSO)2 provided ortho-metalated platinum(II) complexes 1-Pt and 2-Pt
直接的钯(II)催化癸基,(S)-2-甲基丁基和十二烷基N取代的二酮吡咯并吡咯并噻吩(DPPT)(包括3-甲氧基-噻吩衍生物)和6-溴2之间的直接交叉偶联反应,2'-联吡啶,得到取代的DPPT一系列单和双联吡啶配体的1 - 3。与PtCl 2(DMSO)2的络合反应提供了邻位金属化的铂(II)配合物1-Pt和2-Pt,以及由O-生成的N ^ N ^ O配合物3d-Pt(N ^ N ^ O)我激活了中间体复合物3d-Pt(N ^ N)。配体1b和单核络合物1a-Pt和1b-Pt在结构上已通过单晶X射线结构表征,证明在固态下建立了许多分子间π-π相互作用。此外,在模型复合物DMTB-Pt(N ^ N ^ O)(DMTB = 3,4-二甲氧基-(2,2'-联吡啶))的晶体结构中,清楚地证明了螯合三齿N ^ N ^ O模式。手性配体1b及其单核复合物1b-Pt在溶液中未显示任何CD信号,但它们在固