Abstract: A compound is represented by the following formula (I): wherein N represents a nitrogen atom; C represents a carbon atom; Pt represents a platinum atom; Z1, Z4, Z5, and Z8 represent a carbon atom or a nitrogen atom; Z2, Z3, Z6, and Z7 represent a carbon atom, a nitrogen atom, an oxygen atom or a sulfur atom; Z11 and Z16 represent a carbon atom or a nitrogen atom; Z12, Z13, Z14, Z15, Z17, Z18, Z19, and Z20 represent a carbon atom, a nitrogen atom, an oxygen atom, or a sulfur atom; Y1 and Y2 represent a single bond, an oxygen atom, a sulfur atom, a nitrogen atom; A11 represents a divalent linking group; B1 and B2 represent a single bond or a divalent linking group.

Abstract: An organic electroluminescent device is provided and has at least one organic layer between a pair of electrodes. The organic compound contains a compound represented by the following formula (I): Z1 and Z2 each represents a nitrogen-containing aromatic 6-membered ring coordinating to platinum atom at the nitrogen atom, Q represents a nitrogen-containing aromatic 5-membered ring having one or two nitrogen atoms, L1 and L2 each represents a single bond or a divalent group, and n represents 0 or 1.

Abstract: A compound is represented by the following formula (I): wherein N represents a nitrogen atom; C represents a carbon atom; Pt represents a platinum atom; Z1, Z4, Z5, and Z8 represent a carbon atom or a nitrogen atom; Z2, Z3, Z6, and Z7 represent a carbon atom, a nitrogen atom, an oxygen atom or a sulfur atom; Z11, and Z16 represent a carbon atom or a nitrogen atom; Z12, Z13, Z14, Z15, Z17, Z18, Z19, and Z20 represent a carbon atom, a nitrogen atom, an oxygen atom, or a sulfur atom; Y1 and Y2 represent a single bond, an oxygen atom, a sulfur atom, a nitrogen atom; A11 represents a divalent linking group; B1 and B2 represent a single bond or a divalent linking group.

Abstract: An organic electroluminescent device is provided and has at least one organic layer between a pair of electrodes. The organic compound contains a compound represented by the following formula (I): Z1 and Z2 each represents a nitrogen-containing aromatic 6-membered ring coordinating to platinum atom at the nitrogen atom, Q represents a nitrogen-containing aromatic 5-membered ring having one or two nitrogen atoms, L1 and L2 each represents a single bond or a divalent group, and n represents 0 or 1.

Abstract: An organic electroluminescence device, includes: a pair of electrodes; and at least one organic layer including a light emitting layer, the light emitting layer being provided between the pair of electrodes, wherein at least one layer of the at least one organic layer contains a compound represented by formula (1) as defined in the specification.

Abstract: Disclosed is an electrode member which has spherical sections, each of which configures a part of a sphere, and a plurality of spherical electrode sections wherein the radiuses of the spherical sections are different from each other. The spherical electrode sections are disposed in a state wherein the center points of the respective spheres match each other and the spherical electrode sections are insulated from each other such that voltages can be independently applied thereto. Electron-passing openings for straightly taking out electrons, which are moving from the center point, to the outside of the electrode are formed at positions where the spherical electrode sections and a plurality of straight lines radially extending from the center point intersect each other.

Abstract: A process for preparing a platinum complex represented by the following formula (1) includes reacting a compound represented by the following formula (B-2) and a compound represented by the following formula (B-2?) with a compound represented by the following formula (A-0) to obtain a compound represented by the following formula (C-0); and reacting the compound represented by the formula (C-0) with a platinum salt:

Abstract: An organic electroluminescence device, includes: a pair of electrodes; and at least one organic layer including a light emitting layer, the light emitting layer being provided between the pair of electrodes, wherein at least one layer of the at least one organic layer contains a compound represented by formula (I) as defined in the specification.

Abstract: An organic electroluminescent device is provided and has at least one organic layer between a pair of electrodes. The organic compound contains a compound represented by the following formula (I): Z1 and Z2 each represents a nitrogen-containing aromatic 6-membered ring coordinating to platinum atom at the nitrogen atom, Q represents a nitrogen-containing aromatic 5-membered ring having one or two nitrogen atoms, L1 and L2 each represents a single bond or a divalent group, and n represents 0 or 1.

Abstract: An organic electroluminescent device is provided and has at least one organic layer between a pair of electrodes. The organic compound contains a compound represented by the following formula (I): Z1 and Z2 each represents a nitrogen-containing aromatic 6-membered ring coordinating to platinum atom at the nitrogen atom, Q represents a nitrogen-containing aromatic 5-membered ring having one or two nitrogen atoms, L1 and L2 each represents a single bond or a divalent group, and n represents 0 or 1.

Abstract: An organic electroluminescent is provided and includes: a pair of electrodes; and at least one organic layer, between the pair of electrodes, including a light emitting layer. The device comprising, in the at least one organic layer, a compound represented by formula (I): where Qs each independently represents a t-butyl group or a trimethylsilyl group; when the compound has a plurality of Rs, the RS each independently represents a hydrogen atom, an alkyl group, a cyano group, an aryl group, or a heteroaryl group; and n stands for 1 or 2.

Abstract: An organic electroluminescent device comprising: a pair of electrodes comprising a positive electrode and a negative electrode; and a plurality of organic compound layers including a light emitting layer between the pair of electrodes, wherein at least one layer containing a metal complex having a tridentate or more ligand is provided between the light emitting layer and the negative electrode.

Abstract: An organic electroluminescent device is provided and includes: a pair of electrodes; an organic layer including a light emitting layer between the electrodes. The organic layer contains a compound represented by formula (I). In formula (I), R11, R12, and R13 each independently represents a C1-6 alkyl group, Q1 represents a carbon atom or a silicon atom, R14 represents a hydrogen atom or -Q2(R16)(R17)R18 in which Q2 represents a carbon atom or a silicon atom and R16, R17, and R18 each independently represents a C1-6 alkyl group, R15 represents a hydrogen atom, a substituted or unsubstituted alkyl group, a cyano group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heteroaryl group, and n stands for 1 or 2.

Abstract: An organic electroluminescence device, includes: a pair of electrodes; and at least one organic layer including a light emitting layer, the light emitting layer being provided between the pair of electrodes, wherein at least one layer of the at least one organic layer contains a compound represented by formula (I) as defined in the specification.

Abstract: An organic electroluminescence device, includes: a pair of electrodes; and at least one organic layer including a light emitting layer, the light emitting layer being provided between the pair of electrodes, wherein at least one layer of the at least one organic layer contains a compound represented by formula (1) as defined in the specification.

Abstract: A compound is represented by the following formula (I): wherein each of Ar1 and Ar2 independently represents an aromatic ring or an aromatic heterocyclic ring; each of R1, R2, R3 and R4 independently represents a hydrogen atom or a substituent; each of Z1 and Z2 independently represents a carbon atom or a nitrogen atom; each of ring Q1 containing a carbon atom and Z1, and ring Q2 containing a carbon atom and Z2 independently represents an aromatic ring or an aromatic heterocyclic ring; and A1 represents a single bond or a divalent linking group.

Abstract: A hollow fiber membrane module using a sheet-form hollow fiber membrane having excellent cleaning properties in which the pressure resistance of a hollow fiber membrane anchor section does not deteriorate, even when the membrane area increases; a hollow fiber membrane module unit using the module; a membrane filtration device using the unit; and an operation method therefor are provided. The hollow fiber membrane module comprises sheet-form hollow fiber membranes and an anchoring member which anchors the sheet-form hollow fiber membranes in a roughly parallel manner while maintaining in an open state at least one end portion of the sheet-form hollow fiber membranes. The shape of an end face of a side of the anchoring member from which the hollow fiber membranes are exposed is roughly rectangular, and the shape of an end face of a side of the anchoring member toward which the hollow fiber membranes open is roughly circular.

Abstract: A compound is represented by the following formula (I): wherein N represents a nitrogen atom; C represents a carbon atom; Pt represents a platinum atom; Z1, Z4, Z5, and Z8 represent a carbon atom or a nitrogen atom; Z2, Z3, Z6, and Z7 represent a carbon atom, a nitrogen atom, an oxygen atom or a sulfur atom; Z11, and Z16 represent a carbon atom or a nitrogen atom; Z12, Z13, Z14, Z15, Z17, Z18, Z19, and Z20 represent a carbon atom, a nitrogen atom, an oxygen atom, or a sulfur atom; Y1 and Y2 represent a single bond, an oxygen atom, a sulfur atom, a nitrogen atom; A11 represents a divalent linking group; B1 and B2 represent a single bond or a divalent linking group.

Abstract: A process for preparing a platinum complex represented by the following formula (1) includes reacting a compound represented by the following formula (B-2) and a compound represented by the following formula (B-2?) with a compound represented by the following formula (A-0) to obtain a compound represented by the following formula (C-0); and reacting the compound represented by the formula (C-0) with a platinum salt:

Abstract: A hollow fiber membrane module using a sheet-form hollow fiber membrane having excellent cleaning properties in which the pressure resistance of a hollow fiber membrane anchor section does not deteriorate, even when the membrane area increases; a hollow fiber membrane module unit using the module; a membrane filtration device using the unit; and an operation method therefore are provided. The hollow fiber membrane module comprises sheet-form hollow fiber membranes and an anchoring member which anchors the sheet-form hollow fiber membranes in a roughly parallel manner while maintaining in an open state at least one end portion of the sheet-form hollow fiber membranes. The shape of an end face of a side of the anchoring member from which the hollow fiber membranes are exposed is roughly rectangular, and the shape of an end face of a side of the anchoring member toward which the hollow fiber membranes open is roughly circular.