Comparison of Phosphorescent Pt(
<scp>II</scp>
) Complexes with C^N^N
<i>vs</i>
N^N^N Chelators and Caffeine‐Based
<scp>NHC</scp>
‐co‐ligands
<sup>†</sup>
作者:Thomas M. Kirse、Joschua Lüke、Iván Maisuls、Alexander Hepp、Cristian A. Strassert
DOI:10.1111/php.13695
日期:2023.3
dianionic pincer luminophores derived from 2,6-bis(1H-1,2,4-triazol-5-yl)pyridine (N), as well as from 2-phenyl-6-(1H-1,2,4-triazol-5-yl)pyridine (C), bearing either Ad (adamantyl) or tBu (tertiary butyl) substituents. The new 2-phenyl-6-(1H-1,2,4-triazol-5-yl)pyridine-based ligand precursors along with four Pt(II) complexes, namely Pt(C-tBu), Pt(C-Ad), Pt(N-tBu) and Pt(N-Ad) were characterized. Further
在这项工作中,我们探索了以咖啡因为基础的卡宾共配体和衍生自 2,6-双(1 H -1,2,4-三唑-5-基)吡啶 (N) 的三齿双离子钳形发光团的配位化合物,如以及来自 2-phenyl-6-(1 H -1,2,4-triazol-5-yl)pyridine (C),带有 Ad(金刚烷基)或t Bu(叔丁基)取代基。新的 2-phenyl-6-(1 H -1,2,4-triazol-5-yl)pyridine-based ligand precursors 连同四种 Pt(II) 配合物,即 Pt(C- t Bu), Pt(C -Ad), Pt(N- tBu) 和 Pt(N-Ad) 进行了表征。此外,螯合发光团的不同取代基和基于咖啡因的 NHC 共配体对光物理特性的影响(包括光致发光量子产率 ( Φ L )、激发态寿命 ( τ )、辐射 ( k r ), 和非辐射 ( k nr) 失活速率常数)