Alkyl chain functionalised, cyclometalated platinum(II) complexes: Syntheses, luminescence properties and X-ray crystal structure
作者:Juliette A. Lowe、Oliver J. Stacey、Peter N. Horton、Simon J. Coles、Simon J.A. Pope
DOI:10.1016/j.jorganchem.2016.01.015
日期:2016.3
The synthesis and characterisation of nine new monometallic heteroleptic platinum complexes [PtCl(L1–3)(DMSO)], [Pt(L1–3)(acac)], [Pt(L1–3)(8-Q)] (where L1–3 = N-octyl/dodecyl/hexadecyl-2-phenylquinoline-4-carboxamides; acac = acetylacetonate; 8-Q = 8-quinolinato) are described. Single crystal X-ray diffraction studies on [Pt(L1)(acac)] revealed a square planar coordination geometry with intermolecular
九种新的单金属杂配铂络合物[PtCl(L 1–3)(DMSO),[Pt(L 1–3)(acac)],[Pt(L 1–3)(8-Q) ](其中L 1–3 = N-辛基/十二烷基/十六烷基-2-苯基喹啉-4-羧酰胺; acac =乙酰丙酮酸酯; 8-Q = 8-喹啉基)。[Pt(L 1)(acac)]的单晶X射线衍射研究表明,分子间Pt–Pt接触在ca处为方形平面配位几何。3.3Å。使用195 Pt 1 H} NMR光谱对复合物进行了研究,结果显示了周围的化学位移δ铂 -2800 ppm的是强烈依赖于铂(II)的具体协调环境。发光的研究表明所述复合物具有的磷光字符与605和641纳米之间可调发射波长和发光使用寿命期可达CA。450 ns。支持TD-DFT的研究提供了关键复合物类型的HOMO和LUMO能级的描述,它们通常与实验光谱很好地相关。Pt(5 d)中心对所计算的HOMO的贡献强烈