Cyclometalated Platinum(II) Metallomesogens Based on Half-Disc-Shaped β-Diketonate Ligands with Hexacatenar: Crystal Structures, Mesophase Properties, and Semiconductor Devices
作者:Guo Zou、Shanrong Zhang、Shishi Feng、Qihuan Li、Bo Yang、Yi Zhao、Kaijun Luo、Ting-Bin Wen
DOI:10.1021/acs.inorgchem.2c01327
日期:2022.8.1
auxiliary ligands. The single-crystal data of the methoxy diketonate analogues Pt-A1, Pt-B1, and Pt-C1 indicate that they all display excellent square planarity. These platinum(II) complexes show a certain emission tunability (ranging from λ = 506–535 nm) by the introduction of fluorine or trifluoromethyl into ppy. Thermal studies reveal that the fluorine-substituted complexes are liquid crystals but the
一系列新的半圆盘状铂(II)配合物[Pt(ppy)(AL n -6OC n H 2 n +1 )] ( Pt-An) , [Pt(ppyF)(AL n -6OC n H 2 n +1 )] ( Pt-Bn)和 [Pt(ppyCF 3 )(AL n -6OC n H 2 n +1 )] ( Pt-Cn) (AL n -6OC n H 2 n +1 = 1 ,3-双(3,4,5-三烷氧基苯基)丙烷-1,3-二酮;n= 1, 6, 12) 设计合成了结构简洁的化合物,其中2-苯基吡啶(ppy)衍生物作为环金属化配体,六链β-二酮衍生物AL n -6OC n H 2 n +1作为辅助配体。甲氧基二酮酸酯类似物Pt-A1、Pt-B1和Pt-C1的单晶数据表明它们都显示出极好的正方形平面度。通过将氟或三氟甲基引入 ppy,这些铂 (II) 配合物显示出一定的发射可调性(范围为 λ = 506–535