Physikalische Organische Chemie, Technische Universität Dresden, 01069, Dresden, Germany.
Chemistry. 2022 Dec 15;28(70):e202202227. doi: 10.1002/chem.202202227. Epub 2022 Oct 25.
A series of phosphorescent bimetallic platinum(II) complexes is presented, which were synthesized by the combination of bidentate cyclometalated N-heterocyclic carbene ligands and different bridging diphenylformamidinates. The complexes were characterized by standard techniques and additionally two solid-state structures could be obtained. Photoluminescence measurements revealed the strong emissive behavior of the compounds with quantum yields of up to 90 % and emission lifetimes of approx. 2 μs. The effect of the substitution pattern in the bridging ligands on the structural and photophysical properties of the complexes was examined in detail and rationalized by density functional theory calculations (PBE0/6-311G*).
本文介绍了一系列磷光双金属铂（II）配合物，它们是通过二齿环金属化 N-杂环卡宾配体与不同桥联二苯基甲脒的组合合成的。这些配合物通过标准技术进行了表征，并且还获得了两个固态结构。荧光发射测量显示了这些化合物的强烈发光行为，量子产率高达 90%，发射寿命约为 2μs。通过密度泛函理论计算（PBE0/6-311G*）详细研究了桥联配体中取代模式对配合物结构和光物理性质的影响，并对其进行了合理化。
