Organic electroluminescent device

摘要

An organic electroluminescent device is provided and includes: a pair of electrodes; and a light emitting layer between the electrodes. The organic electroluminescent device has a layer containing a compound represented by formula (I).;
L represents a divalent linking group, Q1 and Q2 each independently represents an aromatic or aliphatic heterocycle coordinated to Pt through a nitrogen atom, X1 represents a 6-membered ring containing one or more nitrogen atoms, Q1, Q2, and X1 each independently may have a substituent, X2 represents a sulfur atom, a phosphorus atom, an oxygen atom, or a nitrogen atom, and X3 represents a carbon atom, a sulfur atom, or a phosphorus atom.

主权项

1. An organic electroluminescent device comprising:
a pair of electrodes; and a light emitting layer between the electrodes, wherein the organic electroluminescent device has a layer containing a compound represented by formula (III): wherein L represents a divalent linking group, R1 , R2 and R3 each independently represents a substituent, and m, n, l each independently represents an integer from 0 to 3, wherein a partial structure of X2 and X3 is either represented by any of the following (ii), (iv) or (v): wherein in (ii) and (v) X2 represents a sulfur atom, a phosphorus atom, an oxygen atom, or a nitrogen atom and in (iv) X2 represents a sulfur atom, a phosphorus atom, or a nitrogen atom, wherein R3 represents a substituent and R4 represents a substituent, and X2 and R3 in (ii) do not form a cyclic structure; or the partial structure of X2 and X3 is represented by (i) or (iii), wherein in (i) X2 is a phosphorus atom and in (iii) X2 is selected from the group consisting of a phosphorus atom and a nitrogen atom.