| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a novel copper complex exhibiting delayed fluorescence, and an organic electroluminescent element using the copper complex.SOLUTION: The copper complex has a structure represented by the general formula (1). (In the general formula (1), X represents an atom selected from among an oxygen atom, a sulfur atom, a selenium atom and a tellurium atom; Yand Yeach represent a ligand including a ligand atom forming a coordinate bond with the central metal copper, may each form a ring, and may be bound via a linking group, where the ligands represented by Yand Yeach include an atom selected from among a phosphorus atom, a nitrogen atom, a sulfur atom and an oxygen atom as the ligand atom; and R represents a substituent.)</p> |
