Nanoparticles that can be used as hydrosilylation and dehydrogenative silylation catalysts. The nanoparticles have at least one transition metal with an oxidation state of 0, chosen from the metals of columns 8, 9 and 10 of the periodic table, and at least one carbonyl ligand, preferably a silicide.

The present invention relates to a novel method for producing fluorinated cycloaliphatic compounds from the analogous aromatic compounds by hydrogenation with an Rh-carbene catalyst system.

A polymer containing an optionally substituted repeat unit of formula (I) wherein each R is the same or different and represents H or an electron withdrawing group, and each R.sup.1 is the same or different and represents a substituent. ##STR00001##

A type of polyester yarn for an industrial sewing thread and preparing method thereof are provided. The preparing method is composed of a viscosity enhancing by a solid state polycondensation and a melt spinning for a modified polyester, and the modified polyester is a product of esterification and polycondensation of evenly mixed terephthalic acid, ethylene glycol, tert-butyl branched dicarboxylic acid, trimethylsilyl branched diol and a doped Sb.sub.2O.sub.3 powder, wherein the tert-butyl branched dicarboxylic acid is selected from the group consisting of 5-tert-butyl-1,3-benzoic acid, 2-tert-butyl-1,6-hexanedioic acid, 3-tert-butyl-1,6-hexanedioic acid and 2,5-di-tert-butyl-1,6-hexanedioic acid. Moreover, the modified polyester is dispersed with a doped ZrO.sub.2 powder. An obtained fiber has an intrinsic viscosity drop of 23-28% when stored at 25° C. and R.H. 65% for 60 months.

The invention relates to an organic molecule for optoelectronic devices. According to the invention, the organic molecule has: —a chemical moiety with a structure of formula I: and—one or two second chemical moieties with a structure of formula II: wherein R.sup.I, R.sup.II, R.sup.III, R.sup.IV, R.sup.V, R.sup.VI, R.sup.VII, R.sup.VIII, R.sup.IX, and R.sup.X are at each occurrence independently selected from the group consisting of the binding site of a single bond linking the first chemical moiety to the second moiety, hydrogen, deuterium, OPh, SPh, CF.sub.3, CN, F, Si(C.sub.1-C.sub.5-alkyl).sub.3, Si(Ph).sub.3, C.sub.1-C.sub.5-alkyl, C.sub.1-C.sub.5-alkoxy, C.sub.1-C.sub.5-thioalkoxy, C.sub.2-C.sub.5-alkenyl, C2-C5-alkynyl, C.sub.6-C.sub.18-aryl, C.sub.3-C.sub.17-heteroaryl, N(C.sub.6-C.sub.18-aryl).sub.2, N(C.sub.3-C.sub.17-heteroaryl).sub.2; N(C.sub.3-C.sub.17-heteroaryl)(C.sub.6-C.sub.18-aryl); the dashed lines “Formula III” in formula II represent the binding sites of the first chemical moiety to the second chemical moiety; Z is at each occurrence independently selected from the group consisting of a direct bond, CR.sup.3R.sup.4, C═CR.sup.3R.sup.4, C═O, C═NR.sup.3, NR.sup.3, O, SiR.sup.3R.sup.4, S, S(O) and S(O).sub.2; Ar.sup.1 is C.sub.6-C.sub.60-aryl, which is optionally substituted with one or more substituents R.sup.6; wherein either R.sup.V and R.sup.VI, or R.sup.VI and R.sup.VII represent the binding sites of a single bond linking the first chemical moiety to the second chemical moiety to form a ring.

##STR00001##

A condensed-cyclic compound and an organic light-emitting device, the condensed-cyclic compound being represented by the following Formula 1: ##STR00001##

A process for synthesis of an organosilicon compound is provided herein. Also, novel organosilicon compounds prepared by the present process is provided herein. The process comprises the reaction of a halosilane with an organofunctional alkyl halide in the presence of a metal catalyst, a promoter, and an optional co-catalyst. The process provides an efficient synthetic route to produce organosilicon compounds. The process also allows synthesis of organosilicon compounds with a plurality of different functional groups.

Disclosed herein, inter alia, are silicon containing detectable compounds and methods of use thereof.

The present invention relates to a chain transfer agent including an organozinc compound, a preparation method thereof, and a method for preparing a block copolymer using the same. A chain transfer agent prepared by a preparation method including preparing a Grignard reagent containing styrene residues, and reacting the prepared Grignard reagent with alkyl zinc alkoxide, which is a zinc compound, has not catalyst poison and by-products, and contains 96 wt % or more of a target compound. A block copolymer polymerized using the chain transfer agent and a resin composition including the block copolymer have excellent mechanical properties.

A method for producing an alkenyl or alkynyl-containing organosilicon precursor composition, the method comprising the steps of distilling at least once a composition comprising an alkenyl or alkynyl-containing organosilicon compound having the formula R.sub.nSiR.sup.1.sub.4-n wherein R is selected a linear or branched C.sub.2 to C.sub.6 alkenyl group, a linear or branched C.sub.2 to C.sub.6 alkynyl group; R.sup.1 is selected from hydrogen, a linear or branched C.sub.1 to C.sub.10 alkyl group, and a C.sub.3 to C.sub.10 cyclic alkyl group; and n is a number selected from 1 to 4, wherein a distilled alkenyl or alkynyl-containing organosilicon precursor composition is produced after distilling; and packaging the distilled alkenyl or alkynyl-containing organosilicon precursor composition in a container, wherein the container permits transmission into the container of no more than 10% of ultraviolet and visible light having a wavelength of between 290 nm to 450 nm.