An organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode, the organic layer including an emission layer. The emission layer includes at least one organometallic compound of Formula 1, and at least one selected from a second compound and a third compound, where the organometallic compound, the second compound, and the third compound are different from each other. When the emission layer comprises both the second compound and the third compound, the second compound and the third compound form an exciplex, and the organometallic compound and the second compound and/or the third compound do not form an exciplex:
M(L.sub.1).sub.n1(L.sub.2).sub.n2,  Formula 1
wherein in Formula 1, L.sub.1 is represented by Formula 2-1: ##STR00001##

Metal complexes including a radionuclide and a compound of Formula I and Formula II are potent inhibitors of PSMA. ##STR00001##

Disclosed are novel lanthanide(III) chelates including a pyridine 4-ethynylpyrazine subunit. These chelates have an excitation wavelength which allows excitation with UV LED.

Gallium-salophen compounds, and methods of using the same for the treatment of disease are disclosed.

The present invention relates to specific complexes comprising heavy metal ions having an atomic number of 23 or higher and 83 or lower (in particular Ag.sup.1+, Ba.sup.2+, Pb.sup.2+, Gd.sup.3+ and Bi.sup.3+) and one or more hematein ligand(s). In particular, the invention relates to the use of the complexes as ex vivo contrast agents for a computed tomography scanning of a biological sample. Moreover, the invention relates to specific ex vivo methods for investigating a biological sample by means of computed tomography scanning methods, wherein the method comprises staining the biological sample with a solution comprising one or more of the complex(es); or wherein the method comprises staining the biological sample with a staining solution comprising hematein, and separately contacting the biological sample with one or more staining solution(s) comprising one or more heavy metal ions having an atomic number of 23 or higher and 83 or lower (in particular Ag.sup.1+, Ba.sup.2+, Pb.sup.2+, Gd.sup.3+ and Bi.sup.3+).

The present invention relates to specific complexes comprising heavy metal ions having an atomic number of 23 or higher and 83 or lower (in particular Ag.sup.1+, Ba.sup.2+, Pb.sup.2+, Gd.sup.3+ and Bi.sup.3+) and one or more hematein ligand(s). In particular, the invention relates to the use of the complexes as ex vivo contrast agents for a computed tomography scanning of a biological sample. Moreover, the invention relates to specific ex vivo methods for investigating a biological sample by means of computed tomography scanning methods, wherein the method comprises staining the biological sample with a solution comprising one or more of the complex(es); or wherein the method comprises staining the biological sample with a staining solution comprising hematein, and separately contacting the biological sample with one or more staining solution(s) comprising one or more heavy metal ions having an atomic number of 23 or higher and 83 or lower (in particular Ag.sup.1+, Ba.sup.2+, Pb.sup.2+, Gd.sup.3+ and Bi.sup.3+).

The invention relates to complexing agents of formula (I):

##STR00001##

wherein Chrom.sub.1, Chrom.sub.2 and Chrom.sub.3 are as defined in the description. The invention also relates to lanthanide complexes obtained from these complexing agents.

The embodiments provide a fluorescent rare earth complex having strong emission intensity and excellent durability, and also provide a security medium using the complex. The rare earth complex according to the embodiment comprises a rare earth ion, a diphosphine dioxide ligand and a β-diketone ligand wherein two phosphorus atoms contained in the diphosphine dioxide ligand individually have substituents different from each other.

Provided are an indium compound, a method of producing the same, a composition for depositing an indium-containing thin film including the same, and a method of producing an indium-containing thin film using the same. The provided indium compound has excellent thermal stability, high volatility, and improved vapor pressure, thereby producing an indium-containing thin film having a uniform thickness with an improved deposition speed by adopting the indium compound.

Provided are an indium compound, a method of producing the same, a composition for depositing an indium-containing thin film including the same, and a method of producing an indium-containing thin film using the same. The provided indium compound has excellent thermal stability, high volatility, and improved vapor pressure, thereby producing an indium-containing thin film having a uniform thickness with an improved deposition speed by adopting the indium compound.