An organometallic compound is represented by Formula 1 and an organic light-emitting device includes the same. The organic light-emitting device includes: a first; a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode and including an emission layer, wherein the organic layer includes an organometallic compound represented by Formula 1. ##STR00001##

The use of a metal complex containing a ruthenium ion or an osmium ion, and a tridentate aminodicarbene ligand, the tridentate aminodicarbene ligand having one secondary amino group and two specific heterocyclic carbene groups sandwiching the amino group, enables hydrogenation reduction of carbonyl compounds, such as ketones, carboxylic acid esters, lactones, carboxylic acid amides, and lactams, and imine compounds under relatively mild conditions to produce corresponding alcohols, amines, and the like in a high yield with high catalytic efficiency. The metal complex is obtained by a method comprising steps of reacting a specific metal compound with a specific aminodicarbene precursor and subsequently reacting a specific compound. Reduction of a carbonyl compound or an imine compound in the presence of this metal complex using a hydrogen donor makes it possible to reduce the carbonyl compound or imine compound by hydrogenation.

The use of a metal complex containing a ruthenium ion or an osmium ion, and a tridentate aminodicarbene ligand, the tridentate aminodicarbene ligand having one secondary amino group and two specific heterocyclic carbene groups sandwiching the amino group, enables hydrogenation reduction of carbonyl compounds, such as ketones, carboxylic acid esters, lactones, carboxylic acid amides, and lactams, and imine compounds under relatively mild conditions to produce corresponding alcohols, amines, and the like in a high yield with high catalytic efficiency. The metal complex is obtained by a method comprising steps of reacting a specific metal compound with a specific aminodicarbene precursor and subsequently reacting a specific compound. Reduction of a carbonyl compound or an imine compound in the presence of this metal complex using a hydrogen donor makes it possible to reduce the carbonyl compound or imine compound by hydrogenation.

A non-hydroxylic-solvent soluble silver complex comprises a reducible silver ion complexed with an α-oxy carboxylate and a 5- or 6-membered N-heteroaromatic compound. The non-hydroxylic-solvent soluble silver complex can be represented by the following formula (I):
(Ag.sup.+).sub.a(L).sub.b(P).sub.c   (I)
wherein L represents the α-oxy carboxylate; P represents the 5- or 6-membered N-heteroaromatic compound; a is 1 or 2; b is 1 or 2; and c is 1, 2, 3, or 4, provided that when a is 1, b is 1, and when a is 2, b is 2. Such complexes can be incorporated into photosensitive compositions for thin films or patterns in various articles to provide electrically-conductive silver metal.

A non-hydroxylic-solvent soluble silver complex comprises a reducible silver ion complexed with an α-oxy carboxylate and an oxime compound. The non-hydroxylic-solvent soluble silver complex can be represented by the following formula (I):
(Ag.sup.+).sub.a(L).sub.b(P).sub.c   (I)
wherein L represents the α-oxy carboxylate; P represents the oxime compound; a is 1 or 2; b is 1 or 2; and c is 1, 2, 3, or 4, provided that when a is 1, b is 1, and when a is 2, b is 2. Such complexes can be incorporated into photosensitive compositions in method to provide thin films or patterns in various articles to provide electrically-conductive silver metal.

Novel dinuclear silver(I) pyrazolido complexes and methods of synthesizing them are provided. Advantageously, the novel silver(I) pyrazolido complexes have excellent antimicrobial activity and methods of using said complexes to treat bacterial, fungal, and viral infections are also provided.

The present disclosure provides a bimetallic nanostructure with stimuli-responsiveness, including: a metal seed; a nanogap including a dopamine-modified stimuli-responsive copolymer attached to only a portion of the metal seed; and a metal shell surrounding the nanogap. The bimetallic nanostructure has a controllable interior nanogap, and may be used as a surface-enhanced Raman scattering (SERS) nanoprobe with improved SERS signals by virtue of the presence of the interior nanogap.

The present disclosure provides a bimetallic nanostructure with stimuli-responsiveness, including: a metal seed; a nanogap including a dopamine-modified stimuli-responsive copolymer attached to only a portion of the metal seed; and a metal shell surrounding the nanogap. The bimetallic nanostructure has a controllable interior nanogap, and may be used as a surface-enhanced Raman scattering (SERS) nanoprobe with improved SERS signals by virtue of the presence of the interior nanogap.

The invention relates to metal complex compounds of the formula M.sub.k(L).sub.x(Y).sub.kz-nx, where the ligand L has the formula (I), and to metal complex compounds which include the reaction product of at least one salt or a complex of a transition metal or a main group metal element of the groups 13 to 15 and at least one 1,3-ketoamide. Such complex compounds are suitable in particular as catalysts for polyurethane compositions. The invention also relates to two-component polyurethane compositions including at least one polyisocyanate as the first component, at least one polyol as the second component, and at least one such metal complex compound as the catalyst. The invention additionally relates to different uses of the two-component polyurethane compositions.

The invention relates to metal complex compounds of the formula M.sub.k(L).sub.x(Y).sub.kz-nx, where the ligand L has the formula (I), and to metal complex compounds which include the reaction product of at least one salt or a complex of a transition metal or a main group metal element of the groups 13 to 15 and at least one 1,3-ketoamide. Such complex compounds are suitable in particular as catalysts for polyurethane compositions. The invention also relates to two-component polyurethane compositions including at least one polyisocyanate as the first component, at least one polyol as the second component, and at least one such metal complex compound as the catalyst. The invention additionally relates to different uses of the two-component polyurethane compositions.