A compound comprising a ligand L.sub.A comprising a moiety L having a structure of Formula I ##STR00001##
is provided. In Formula I, L.sub.A coordinated to a metal M; A.sup.1 is selected from B, N, P, PO, PS, Al, Ga, SiR, GeR, and SnR; where rings A, B, and C are 5- or 6-membered rings; Y.sup.1, Y.sup.2, and Y.sup.3 are selected from direct bonds, the metal M, and a variety of linkers; a+b+c=2 or 3; and one of a number of specific conditions is met. OLED devices, consumer products, and formulations including the compound are also provided.

The present disclosure relates to a boron compound applicable to an organic light-emitting diode and an organic light-emitting diode comprising same. More specifically, the present disclosure relates to a boron compound represented by any one of Chemical Formulas A to D and an organic light-emitting diode comprising same, wherein Chemical Formulas A to D are as defined in the description.

Disclosed are a method for synthesizing a thieno[3,2-b]pyridine-5(4H)-one derivative by using a gold catalyst and a use of the derivative compound, wherein the novel thieno[3,2-b]pyridine-5(4H)-one derivative of the present disclosure, which is a compound synthesized using gold as a catalyst, has fluorescence characteristics with a wide range of emission wavelengths and thus can be helpfully used in various industrial fields, such as physics, chemistry, and biomedicine research.

The present disclosure relates to an organometallic compound in Formula below and an organic light emitting diode and an organic light emitting device including the organometallic compound. The organometallic compound provides high emitting efficiency and longer lifespan, and the organic light emitting diode and the organic light emitting device have advantages in the emitting efficiency and the lifespan. ##STR00001##

Compounds of Formula I,

##STR00001##

are provided. In Formula I, M is Pd or Pt; each of X.sup.1 to X.sup.14 is C or N; one of Z.sup.1 and Z.sup.2 is C and the other is N; Y is selected from O, S, Se, N*R, CRR, SiRR, or GeRR; K.sup.1 is a direct bond, O, or S; each R, R, R.sup.A, R.sup.B, R.sup.C, and R.sup.D is independently hydrogen or a substituent; at least one of R, R, R.sup.A, R.sup.B, R.sup.C, or R.sup.D is a substituent R*; and (i) R* comprises a 5-membered or 6 -membered heterocyclic ring, or (ii) R* Formula Ia:

##STR00002##

Formula Ia; R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.Y and R.sub.Z is independently hydrogen or a General Substituent defined herein, and at least one is not hydrogen. Formulations, OLEDs, and consumer products including the compound are also provided.

A heteroleptic compound of formula Ir(L.sub.A).sub.x(L.sub.B).sub.y(L.sub.C).sub.z where L.sub.A comprises

##STR00001##

L.sub.B comprises a structure of

##STR00002##

and ligand L.sub.C is a bidentate ligand. In addition, moiety A is a monocyclic ring or a polycyclic fused ring system; each of Z.sup.1, Z.sup.2, and X.sup.1 to X.sup.13 is C or N; each of Y.sup.1 and Y.sup.2 is a linking group; Z is C, Si, or Ge; each R substituent is hydrogen or a General Substituent defined herein; and any two substituents may be joined or fused to form a ring. Formulations, OLEDs, and consumer products containing the compound are also provided.

Provided are organometallic compounds comprising a central metal atom and a ligand comprising at least four rings which are fused together, wherein at least one ring is a 6-membered aromatic ring. Also provided are formulations comprising these organometallic compounds. Further provided are organic light emitting devices (OLEDs) and related consumer products that utilize these organometallic compounds.

The invention relates to compounds which are suitable for use in electronic devices, and to electronic devices, in particular organic electroluminescent devices, containing said compounds.