A curable and hygroscopic resin composition for sealing electronic devices, having at least a (meth)acrylate oligomer (a) having the number-average molecular weight of 1,500 to 5,000, a low molecular weight (meth)acrylate (b) having an average molecular weight of 170 to 500, a moisture-reactive organometallic compound (c), and a polymerization initiator (d), wherein the (meth)acrylate oligomer (a) and the low molecular weight (meth)acrylate (b) are multifunctional (meth)acrylates in which the number of (meth)acryloyl groups is from 1.5 to 3 in one molecule of each of the (meth)acrylate oligomer (a) and the low molecular weight (meth)acrylate (b); a sealing resin; and an electronic device.

Provided is an aluminum precursor for thin-film deposition having a structure of formula (I) or (II), wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, and R.sub.7 each independently represent a hydrogen atom, C.sub.1˜C.sub.6 alkyl, halo-C.sub.1˜C.sub.6 alkyl, C.sub.2˜C.sub.5 alkenyl, halo-C.sub.2˜C.sub.5 alkenyl, C.sub.3˜C.sub.10 cycloalkyl, halo-C.sub.3˜C.sub.10 cycloalkyl, C.sub.6˜C.sub.10 aryl, halo-C.sub.6˜C.sub.10 aryl or —Si(R.sub.0).sub.3, and wherein R.sub.0 is C.sub.1˜C.sub.6 alkyl or halo-C.sub.1˜C.sub.6 alkyl. According to the present invention, based on the interaction principle between molecules, aluminum precursors for thin-film deposition are provided, which have a good thermal stability, are not susceptible to decomposition and convenient for storage and transportation, have good volatility at a high temperature, and are excellent in film formation.

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The present invention relates to a method for separating off a substance from a solution, in which electromagnetic radiation is radiated into the solution, an intensity of the electromagnetic radiation which has been scattered by crystals located in the solution is detected, the detected intensity is compared with a desired intensity (I.sub.S) and the temperature of the solution is regulated depending on the difference between the detected intensity and the desired intensity (I.sub.S) in such a way that the amount of this difference is reduced. If the amount of the difference between the detected intensity and the desired intensity (I.sub.S) is less than a limiting value, a crystallization method is started in which crystals of the substance are obtained which are then separated off.

A catalyst-free synthesis method for the formation of a metalorganic compound comprising a desired (first) metal may include, for example, selecting another (second) metal and an organic solvent, with the second metal being selected to (i) be more reactive with respect to the organic solvent than the first metal and (ii) form, upon exposure of the second metal to the organic solvent, a reaction by-product that is more soluble in the organic solvent than the metalorganic compound. An alloy comprising the first metal and the second metal may be first produced (e.g., formed or otherwise obtained) and then treated with the organic solvent in a liquid phase or a vapor phase to form a mixture comprising (i) the reaction by-product comprising the second metal and (ii) the metalorganic compound comprising the first metal. The metalorganic compound may then be separated from the mixture in the form of a solid.

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.

Aluminum chelate complex compounds with two substituted 8-hydroxyquinoline ligand and one dibenzothiophene, dibenzofuran or dibenzoselenophene ligands or aza-analogs of these molecules, attached directly or through an aromatic spacer to the oxygen atom is provided to improve lifetime, operating voltage and efficiency of an OLED. Additional substitution of dibenzothiophene or dibenzofuran ring may also provide charge delocalization, HOMO modification and higher Tg.

The present disclosure provides novel methods of making aluminum complexes with utility for promoting epoxide carbonylation reactions. Methods include reacting neutral metal carbonyl compounds with alkylaluminum complexes.

The invention relates to an improved process for preparing metal-organic framework materials, metal-organic frameworks obtainable by such processes, methods using the same, and the use thereof. The process of the invention provides an improved process for preparing metal-organic frameworks in particular monocrystalline metal-organic frameworks having large crystal sizes. The invention also relates to metal organic frameworks comprising iron or titanium, and their uses.

A process for the preparation of a metal-organic compound, said metal-organic compound comprising at least one metal ion and at least one organic ligand, wherein said organic ligand is capable of associating with said metal ion, comprising at least the steps of; providing a first reactant comprising at least one metal in ionic form; providing a second reactant comprising at least one organic ligand capable of associating with said metal in ionic form; and admixing said first and second reactants under conditions of prolonged and sustained pressure and shear sufficient to synthesize said metal-organic compound.

The compound represented by the following general formula is useful as a light emitting material. Ar.sup.1 represents an arylene group, Ar.sup.2 and Ar.sup.3 represent an aryl group, and R.sup.1 to R.sup.8 represent a hydrogen atom or a substituent, provided that at least one of R.sup.1 to R.sup.8 represents a diarylamino group. ##STR00001##