The invention relates to halogenated tetrasilylboranates of the general formula

M.sup.z+[B(SiR.sub.mX.sub.n).sub.4.sup.−].sub.z  (I),

where the radicals and indices have the meanings indicated in claim 1, with the proviso that m+n=3,
processes for the production thereof and also the use.

A mixture M includes at least one compound A selected from (a1) a compound of the general formula (I): R.sup.1R.sup.2R.sup.3Si—H, and/or (a2) a compound of the general formula (I′): (SiO.sub.4/2).sub.a(R.sup.xSiO.sub.3/2).sub.b(HSiO.sub.3/2).sub.b′(R.sup.x.sub.2SiO.sub.2/2).sub.c(R.sup.xHSiO.sub.2/2).sub.c′(H.sub.2SiO.sub.2/2).sub.c″(R.sup.x.sub.3SiO.sub.1/2).sub.d(HR.sup.x.sub.2SiO.sub.1/2).sub.d′(H.sub.2R.sup.xSiO.sub.1/2).sub.d″(H.sub.3SiO.sub.1/2).sub.d′″, and at least one compound B selected from (b1) a compound of the general formula (II): R.sup.4R.sup.5R.sup.6Si—O—R.sup.7, and/or (b2) a compound of the general formula (II′): R.sup.x.sub.3Si—O[—SiR.sup.x.sub.2—O].sub.m—[Si(OR.sup.7.sub.3)R.sup.x—O].sub.n—SiR.sup.x.sub.3, and at least one compound C selected from the cationic germanium(II) compound of the general formula (III): ([Ge(II)Cp].sup.+).sub.aX.sup.a−.

The present invention relates to an improved process for the preparation of trifloxystrobin of formula (I), which is simple, economical, efficient, user and environment friendly, moreover commercially viable with higher yield and chemical purity. ##STR00001##

Methods of preparing oligomers of an olefin are provided. The methods can include providing an alkylaluminum compound and irradiating the alkylaluminum compound with microwave radiation to provide an irradiated alkylaluminum compound. The methods can further include mixing the irradiated alkylaluminum compound with a chromium compound, a pyrrole compound, and a zinc compound to provide a catalyst composition. The methods can further include contacting an olefin with the composition to form oligomers of the olefin. The olefin can include ethylene, and the oligomers of the olefin can include 1-hexene.

This disclosure features a urea conversion catalyst located within a urea decomposition reactor (e.g., a urea decomposition pipe) of a diesel exhaust aftertreatment system. The urea conversion catalyst includes a refractory metal oxide and a cationic dopant. The urea conversion catalyst can decrease the temperature at which urea converts to ammonia, can increase the urea conversion yield, and can decrease the likelihood of incomplete urea conversion.

A MOF production system and method of making are detailed for continuous and controlled synthesis of MOFs and MOF composites. The system can provide optimized yields of MOFs and MOF composites greater than or equal to 95%.

A catalytic nanoparticle can include a nanodiamond core, a thin-layer polymeric film applied to an outer surface of the nanodiamond core, and a catalyst immobilized at an outer surface of the thin-layer polymeric film. The nanoparticles can also be used in connection with a transducer to form a sensor. A method of catalysis can include contacting the catalytic nanoparticle with a reactant in a reaction area. The reactant can be capable of forming a reaction product via a reaction catalyzed by the catalyst. The method of catalysis can also include facilitating a catalytic interaction between the catalytic nanoparticle and the reactant.

This invention relates to a Cu-BTC MOF which is water stable. The Cu-BTC MOF has been modified by substituting some of the BTC ligand (1,3,5, benzene tricarboxylic acid) with 5-aminoisophthalic acid (AIA). The resultant MOF retains at least 40% of its as synthesized surface area after exposure to liquid water at 60° C. for 6 hours. This is an unexpected result versus the MOF containing only the BTC ligand. This MOF can be used to abate contaminants such as ammonia in gas streams and especially air streams.

A method of producing a catalytic carbon fiber may include: providing a carbon fiber and an aminated macrocycle, mixing the carbon fiber and the aminated macrocycle with a solvent; and reacting the carbon fiber and the aminated macrocycle to form an amide bond between the carbon fiber and the aminated macrocycle thereby forming the catalytic carbon fiber.

A carbon structure comprising a mixture and a polymer. The mixture has a base carbon and a catalytic carbon. The polymer has a first binder with a median diameter of less than 10 microns and a second binder with a median diameter between 10 and 70 microns.