The present invention provides a metal complex that has excellent durability, and a device and the like having excellent durability that uses such a metal complex. Specifically, the present invention provides a metal complex comprising (a) a polydentate ligand having denticity of five or more that includes a heteroaromatic ring which contains two or more atoms selected from the group consisting of a nitrogen atom, an oxygen atom, and a sulfur atom, and (b) an ion of a metal selected from the group consisting of cerium, praseodymium, ytterbium, and lutetium; a composition comprising the metal complex and a charge transport material; an organic thin film obtained by using the metal complex or composition; and a device obtained by using the metal complex, composition, or organic thin film.
本发明提供了一种具有优异耐久性的
金属配合物,以及使用这种
金属配合物的具有优异耐久性的设备等。具体地,本发明提供了一种
金属配合物,包括(a)具有五个或更多配位位点的多齿
配体,其中包括一个含有来自氮原子、氧原子和
硫原子的组成的两个或更多原子的杂环芳香环,以及(b)来自
铈、
镨、
镱和
镥等
金属的离子;包括所述
金属配合物和电荷传输材料的组合物;通过使用
金属配合物或组合物获得的有机薄膜;以及通过使用
金属配合物、组合物或有机薄膜获得的设备。