The invention aims at providing platinum complexes useful as materials for light emitting devices and extremely excellent in heat stability, luminous characteristics, and luminous efficiency, and a process for effective preparation thereof. The invention relates to platinum complexes represented by the general formula [1]:
wherein any two of A, B and C are each independently an optionally substituted nitrogenous aromatic heterocyclic group and the other is optionally substituted aryl or optionally substituted heteroaryl; and Y is halogeno or an optionally substituted aryl or heteroaryl group which is bonded either directly or through oxygen (—O—) or sulfur (—S—) (with the proviso that when the adjacent two rings are nitrogenous aromatic heterocyclic groups, the cases wherein Y is chloro are excepted, while when the nonadjacent two rings are nitrogenous aromatic heterocyclic groups, the cases wherein Y is not halogeno are excepted).
该发明旨在提供一种
铂配合物,可用作发光器件材料,具有极佳的热稳定性、发光特性和发光效率,并提供一种有效的制备方法。该发明涉及由通式[1]表示的
铂配合物:其中,A、B和C中的任意两个分别独立地是可选取代的氮杂芳香族环基团,另一个是可选取代的芳基或可选取代的杂芳基;Y是卤素或经过氧(—O—)或
硫(—S—)直接或通过键合的可选取代的芳基或杂芳基团(但当相邻的两个环为氮杂芳香族环基团时,除了Y为
氯的情况外,当非相邻的两个环为氮杂芳香族环基团时,除了Y不是卤素的情况外,都不在此限)。