Provided herein are transition metal complexes that are useful in the acceptorless dehydrogenation of various substrates, including alkanes. Also provided are methods of dehydrogenating substrates to provide unsaturated products such as olefins.

Compositions can include compounds having a formula: Co.sub.yW.sub.1-xMx0.sub.4 (I), wherein M is Mo, V, or Nb; 0.5≥x≥0; and 1<y≤4; and wherein the compound has an X-ray powder diffraction pattern including characteristic diffraction peaks having d-spacing values of about 2.90 Å, 2.56 Å, and 1.73 Å. Methods can include making a bulk catalyst composition including (i) combining tungstic acid and cobalt carbonate and (ii) reacting the tungstic acid and cobalt carbonate to form a catalyst composition, wherein the cobalt carbonate has an X-ray powder diffraction pattern including characteristic diffraction peaks having d-spacing values of about 10.03 Å, 5.91 Å, 4.35 Å, and 4.21 Å.

A molecular building block composition can include a metal ion component; and a ligand component including a core including at least one functional group associated with the metal ion component and the core.

The present invention discloses a cobalt compound of formula (I), a process for the preparation and use thereof. The present invention further relates to a pharmaceutical composition and a method inhibition of Tau Aggregation in a subject in need thereof using compound of formula (I). ##STR00001##

A nanofibrous catalyst for in the electrolyzer and methods of making the catalyst. The catalysts are composed of highly porous transition metal carbonitrides, metal oxides or perovskites derived from the metal-organic frameworks and integrated into a 3D porous nano-network electrode architecture. The catalysts are low-cost, highly active toward OER, with excellent conductivity yet resistant to the oxidation under high potential operable under both acidic and alkaline environments.

Catalyst compositions for the conversion of aldehyde compounds and primary alcohol compounds to olefins are disclosed herein. Reactions include oxidative dehydroxymethylation processes and oxidative dehydroformylation methods, which are beneficially conducted in the presence of a sacrificial acceptor of H.sub.2 gas, such as N,N-dimethylacrylamide.

This invention relates to a polymerization catalyst system comprising group 8 or 9 containing non-coordinating anion activator, a polymerization catalyst compound, optional support, and optional scavenger. Preferably, the activator comprises a compound represented by the formula: H.sub.s(L).sub.mM where M is a group 8 or 9 metal, s is 0 or 1, m 1, 2, 3, or 4, each L ligand is independently C≡O, NR.sub.3, PR.sub.3, where each R, independently is halogen, haloalkyl, or haloaryl) or optionally two or more L ligands may together form a multiply-valent ligand complex. Further, this invention relates to anon-coordinating anion activator represented by the formula: [Z.sub.d].sup.+[H.sub.sL.sub.mM].sup.d−, where M, s, m, L, are as defined above, d is 1, 2, or 3 and Z is (L′-H) or a reducible Lewis acid; L′ is a neutral Lewis base; H is hydrogen, and (L′-H) is a Bronsted acid. This invention also relates to a process for making a polymeric product comprising contacting a C2-C40 alpha-olefin feed with the polymerization catalyst system to obtain a polymerization reaction mixture; and obtaining a polymer product from the polymerization reaction mixture.

A catalyst system has been designed that disrupts the sedimentation process. The catalyst system achieves this by saturating key feed components before the feed components are stripped into their incompatible aromatic cores. The efficacy of this disruptive catalyst system is particularly evident in a hydrocracker configuration that runs in two-stage-recycle operation. The catalyst is a self-supported multi-metallic catalyst prepared from a precursor in the hydroxide form, and the catalyst must be toward the top level of the second stage of the two-stage system.

A composition and method of making such a composition that has application in the hydroprocessing of hydrocarbon feedstocks. The method comprises selecting an organic additive by the use of a correlation model for predicting catalytic activity as a function of a physical property that is associated with the organic additive and incorporating the organic additive into a support material to provide the additive impregnated composition.

The subject of the present invention is the use, as hydrosilylation and/or dehydrogenative silylation catalyst, of a cobalt compound of formula (1): [CO(N(SiR.sub.3).sub.2).sub.x].sub.y in which: —the R symbols, which are identical or different, represent a hydrogen atom or a hydrocarbon-based radical having from 1 to 12 carbon atoms, and preferably the R symbols, which are identical or different, are chosen from the group consisting of: a hydrogen atom, alkyl groups having from 1 to 8 carbon atoms and aryl groups having from 6 to 12 carbon atoms, —x=1, 2 or 3 and—y=1 or 2.