钪 N,O-螯合配合物的合成、结构及在近白色有机电致发光器件中的电致发光性能。

Synthesis, structures, and electroluminescent properties of scandium N,O-chelated complexes toward near-white organic light-emitting diodes.

机构信息

G.A. Razuvaev Institute of Organometallic Chemistry of RAS, Tropinina 49, Nizhny Novgorod, 603950, Russia.

出版信息

Inorg Chem. 2010 Jun 7;49(11):5094-100. doi: 10.1021/ic1002429.

PMID:20423054

Abstract

Three members of a new class of electroluminescent, neutral, and monomeric scandium N,O-chelate complexes, namely, Sc(III)-tris-2-(2-benzoimidazol-2-yl)phenolate (1), Sc(III)-tris-2-(2-benzoxyazol-2-yl)phenolate (2), and Sc(III)-tris-2-(2-benzothiazol-2-yl)phenolate (3), have been prepared and X-ray characterized. DFT calculations have been performed. In contrast to the most frequently applied dual or multiple dopants in multilayer white OLED devices, all our simpler devices with the configuration of indium tin oxide/N,N'-bis(3-methylphenyl)-N,N'-diphenylbenzidine/neat scandium complex/Yb exhibit close to near-white emission with a blue hue (CIE(x,y) = 0.2147, 0.2379) in the case of 1, a cyan hue (0.2702, 0.3524) in the case of 2, and a yellowish hue (0.3468; 0.4284) in the case of 3.

摘要

三种新型电致发光、中性、单体钪 N,O-螯合配合物，即 Sc(III)-三-(2-(2-苯并咪唑-2-基)苯酚根)（1）、Sc(III)-三-(2-(2-苯并恶唑-2-基)苯酚根)（2）和 Sc(III)-三-(2-(2-苯并噻唑-2-基)苯酚根)（3），已经被制备并通过 X 射线进行了表征。还进行了 DFT 计算。与多层白色 OLED 器件中最常应用的双掺杂或多掺杂剂相反，我们所有更简单的器件采用氧化铟锡/ N，N'-双（3-甲基苯基）-N，N'-二苯基联苯胺/纯钪配合物/ Yb 的配置，在 1 的情况下，发出近白色的发射光，带有蓝色色调（CIE(x,y) = 0.2147，0.2379），在 2 的情况下，发出青色色调（0.2702，0.3524），在 3 的情况下，发出黄橙色色调（0.3468；0.4284）。