Abstract: An organometallic compound represented by Formula 1: wherein M1 is a transition metal; Y1 to Y3 are each independently C or N; R4 is a substituted or unsubstituted C1-C60 alkyl group; ring CY2 to ring CY5 are each independently a C5-C60 carbocyclic group or a C1-C60 heterocyclic group; L1 is a single bond, O, S, Se, N(R61), B(R61), C(R61)(R62), or Si(R61)(R62); a1 is 1, 2, 3, 4, or 5; b10, b20, b30, b40, and b50 are each independently 1, 2, 3, 4, 5, 6, 7, 8, 9, or 10; and the remaining substituent groups of Formula 1 are as provided herein.

Abstract: A compound is represented by Chemical Formula 1. In Chemical Formula 1, R1 to R4, R11a to R14c, and n are the same as defined in the detailed description.

Abstract: A near-infrared absorber includes a compound represented by Chemical Formula 1. A near-infrared absorbing/blocking film, a photoelectric device, an organic sensor, and an electronic device may include the near-infrared absorber. In Chemical Formula 1, Ar, Ar1, Ar2, Ar3, Ar4, X1, X2, L1, L2, R1, and R2 are the same as defined in the detailed description.

Abstract: An infrared absorber includes a compound represented by Chemical Formula 1. An infrared absorbing/blocking film, a photoelectric device, an organic sensor, and an electronic device may include the infrared absorber. In Chemical Formula 1, Ar, X1, X2, Y1, Y2, R1, R2, R11, R12, R13, and R14 are the same as defined in the detailed description.

Abstract: An organometallic compound represented by Formula 1: wherein X1 is N or C(R1), and X2 is N or C(R2); at least one of X1 and X2 is N; Y1 is a single bond, O, S, Se, N(R3), C(R3)(R4), Si(R3)(R4), Ge(R3)(R4), B(R3), P(R3), P(?O)(R3), S(?O)2, or C(?O); n1 is 0, 1, or 2; A1 and A2 are each independently a C5-C30 carbocyclic group or a C1-C30 heterocyclic group; wherein the remaining substituent groups are as defined herein.

Abstract: The present disclosure provides a novel biphenyl derivative compound, an optical isomer thereof or a pharmaceutically acceptable salt thereof. The biphenyl derivative compound, optical isomer thereof or pharmaceutically acceptable salt thereof according to the present disclosure may induce cancer cell death by damaging mitochondria and inducing ATP depletion in cells which are in a nutrient-starved state such as a glucose-starved state, which is the normal environment of cancer cells. In addition, it is an Nm23-H1/NDPK activity-increasing substance that may suppress cancer metastasis and growth. Thus, it exhibits excellent effects not only on the prevention, alleviation and treatment of cancer, but also on the suppression of cancer metastasis.

Abstract: An organometallic compound represented by Formula 1: wherein, M1 is a transition metal; X11 is N or C(R11); X12 is N or C(R12); X21 is N or C(R21); X22 is N or C(R22); X23 is N or C(R23); at least one of X21 and X22 is N; Y2 to Y4 are each independently C or N; A2 to A4 are each independently a chemical bond, O, or S; ring CY3 and ring CY4 are each independently a C5-C30 carbocyclic group or a C1-C30 heterocyclic group; a1, a2, and a3 are each independently an integer from 1 to 3; R13 is a group represented by Formula 2, and the remaining substituents are as defined herein.

Abstract: An organometallic compound represented by Formula 1-1 or 1-2: wherein, in Formulae 1-1 and 1-2, M is Pt or Pd; each of X1, X2, and X3 is carbon; X4 is nitrogen; T8 is O, S, N(R81), C(R81)(R82), or Si(R81)(R82); and the remaining substituent groups are as defined herein.

Abstract: The present disclosure provides a novel biphenyl derivative compound or a pharmaceutically acceptable salt thereof. The biphenyl derivative compound or pharmaceutically acceptable salt thereof according to the present disclosure is a compound that increases Nm23-H1/NDPK activity and can inhibit cancer metastasis and growth. Thus, it exhibits excellent effects not only on the prevention, alleviation and treatment of cancer, but also on the suppression of cancer metastasis.

Abstract: A heterocyclic compound represented by Formula 1: wherein E1 is a group represented by Formula A; k1 is an integer from 1 to 5; n1 is 2 or 3; n2 is an integer from 0 to 3; d1, d2, d3, d5, and d6 are each independently an integer from 0 to 4; d4 is an integer from 0 to 3; d7 is an integer from 0 to 5; wherein the heterocyclic compound represented by Formula 1 comprises at least one deuterium; * indicates a binding site to an adjacent atom; and the remaining substituents are as defined herein.

Abstract: An organometallic compound represented by Formula 1: wherein, M is a transition metal, X11 is N or C(R11), X12 is N or C(R12), at least one of X11 and X12 is N, ring CY2, ring CY31, ring CY32, and ring CY4 are each independently a C3-C60 carbocyclic group or a C1-C60 heterocyclic group, Y2 to Y4 are each independently C or N, A2 to A4 are each independently a chemical bond, O, or S, a1 to a3 are each independently an integer from 1 to 3, and the remaining substitutions are as provided in the detailed description.

Abstract: Disclosed are a compound represented by Chemical Formula 1, a film, a photoelectric diode, an organic sensor, and an electronic device. In Chemical Formula 1, Ar1 and Ar2, Z, L1, L2, and R1 to R6 are the same as defined in the detailed description.

Abstract: Provided are an etching composition including an oxidizing agent, an ammonium salt, an aqueous solvent, and an accelerator, a method of preparing a metal-containing film etching by using the same, and a method of manufacturing a semiconductor device by using the same.

Abstract: A near-infrared absorber includes a compound represented by Chemical Formula 1. A near-infrared absorbing/blocking film, a photoelectric device, an organic sensor, and an electronic device may include the near-infrared absorber. In Chemical Formula 1, Ar1, Ar2, X1, L1, L2, R1, R2, R3, and R4 are the same as defined in the detailed description.

Abstract: A sensor includes an anode and a cathode, and a near-infrared photoelectric conversion layer between the anode and the cathode. The near-infrared photoelectric conversion layer is configured to absorb light of at least a portion of a near-infrared wavelength spectrum and convert the absorbed light into an electrical signal. The near-infrared photoelectric conversion layer includes a first material having a maximum absorption wavelength in the near-infrared wavelength spectrum and a second material forming a pn junction with the first material and having a wider energy bandgap than an energy bandgap of the first material. The first material is included in the near-infrared photoelectric conversion layer in a smaller amount than the second material.

Abstract: A cleaning composition for removing residues on surfaces contains a solvent and a cleaning accelerator, but does not contain an oxidant, wherein the cleaning accelerator includes at least one of a salt represented by Formula 1A or a salt represented by Formula 1B. A method of cleaning a metal-containing film includes preparing the cleaning composition, and bring the cleaning composition into contact with a metal-containing film provided on a substrate, the metal-containing film having a surface on which residues are generated.

Abstract: An infrared absorbing polymer includes a first structural unit represented by Chemical Formula 1 and a second structural unit including at least one of Chemical Formula 2A to Chemical Formula 2. The infrared absorbing polymer may be included in an infrared absorbing/blocking film, a photoelectric device, a sensor, and an electronic device.

Abstract: A heterocyclic compound represented by Formula 1, an organic light-emitting device including the same, and an electronic apparatus including the organic light-emitting device: wherein a detailed description of Formula 1 is provided in the specification.

Abstract: Provided are a condensed cyclic compound represented by Formula 1, an organic light-emitting device including the same, and an electronic apparatus including the organic light-emitting device. The details of Formula 1 are as described herein.

Abstract: Provided are a heterocyclic compound represented by Formula 1A, an organic light-emitting device including the same, and an electronic apparatus including the organic light-emitting device: wherein a detailed description of Formula 1A is provided in the specification.