Embodiments of this disclosure include catalyst systems comprising a metal-ligand complex according to formula (I):

##STR00001##

Embodiments of this disclosure include catalyst systems comprising a metal-ligand complex according to formula (I):

##STR00001##

The present disclosure relates to novel metal-organic frameworks (MOFs) comprising tetratopic linkers with small pore apertures. In certain aspects, the disclosure provides Zr-MOFs, non-limiting examples include Zr(bptc), Zr(abtc), and Zr(tptc-(Me).sub.2). The present disclosure further relates to methods of utilizing the MOFs of the disclosure to separate hydrocarbons through adsorptive processes. The present disclosure further relates to the discovery that Ca(H.sub.2tcpb) metal-organic framework (MOF) is capable of separating hydrocarbon isomers from one another through adsorptive processes. In one aspect, the disclosure provides a method of separating C5-C8 hydrocarbon isomers, such that straight chain, mono-branched, and/or multi-branched isomers are each separated from one another. This separation is achieved by taking advantage of the temperature dependent adsorptive properties of Ca(H.sub.2tcpb) MOF.

The present disclosure relates to bis(aryl phenolate) Lewis base catalysts. Catalysts, catalyst systems, and processes of the present disclosure can provide high temperature ethylene polymerization, propylene polymerization, or copolymerization as the bis(aryl phenolate) Lewis base catalysts are stable at high polymerization temperatures and have good activity at the high polymerization temperatures. The stable catalysts with good activity can provide formation of polymers having high molecular weights and the ability to make an increased amount of polymer in a given reactor, as compared to conventional catalysts. Hence, the present disclosure demonstrates highly active catalysts capable of operating at high reactor temperatures while producing polymers with controlled molecular weights and or robust isotacticity.

The present disclosure relates to bis(aryl phenolate) Lewis base catalysts. Catalysts, catalyst systems, and processes of the present disclosure can provide high temperature ethylene polymerization, propylene polymerization, or copolymerization as the bis(aryl phenolate) Lewis base catalysts are stable at high polymerization temperatures and have good activity at the high polymerization temperatures. The stable catalysts with good activity can provide formation of polymers having high molecular weights and the ability to make an increased amount of polymer in a given reactor, as compared to conventional catalysts. Hence, the present disclosure demonstrates highly active catalysts capable of operating at high reactor temperatures while producing polymers with controlled molecular weights and or robust isotacticity.

The invention relates to a method for producing dialkylamido element compounds. In particular, the invention relates to a method for producing dialkylamido element compounds of the type E(NRR′).sub.x, wherein first WAIN is reacted with HNRR′ in order to form M[Al(NRR′).sub.4] and hydrogen, and then the formed M[Al(NRR′).sub.4] is reacted with EX.sub.x in order to form E(NRR′).sub.x and M[AlX.sub.4], wherein M=Li, Na, or K, R=C.sub.nH.sub.2n+1, where n=1 to 20, and independently thereof R′=C.sub.nH.sub.2n+1, where n=1 to 20, E is an element of the groups 3 to 15 of the periodic table of elements, X=F, Cl, Br, or I, and x=2, 3, 4 or 5.

Metal-organic framework molecules with pyrene group-containing or biphenyl group-containing linkers for use in the removal of uremic toxins from biological samples that contain such toxins are provided. Also provided are methods for using the MOFs to remove uremic toxins from biological samples. The methods include hemodialysis of blood samples from patients suffering from a uremia-related disease, such as chronic kidney failure.

Provided are an electrolytic solution for a non-aqueous secondary battery containing an electrolyte, an organic solvent, and a metal complex represented by General Formula (I), a non-aqueous secondary battery in which the electrolytic solution for a non-aqueous secondary battery is used, and a metal complex. ##STR00001## In General Formula (I), M represents a transition metal. k represents an integer of 0 or more, m represents an integer of 0 to 4, and n represents an integer of 1 or more. Here, k+n represents a valence of M. R.sup.1 represents an alkyl group, an aryl group, an alkoxy group, a carbonyl group-containing group, a sulfonyl group-containing group, or a halogen atom. R.sup.2 and R.sup.3 represent a hydrogen atom, an alkyl group, an aryl group, an alkoxy group, a carbonyl group-containing group, a sulfonyl group-containing group, or a halogen atom. L represents a monodentate ligand.

Provided are an electrolytic solution for a non-aqueous secondary battery containing an electrolyte, an organic solvent, and a metal complex represented by General Formula (I), a non-aqueous secondary battery in which the electrolytic solution for a non-aqueous secondary battery is used, and a metal complex. ##STR00001## In General Formula (I), M represents a transition metal. k represents an integer of 0 or more, m represents an integer of 0 to 4, and n represents an integer of 1 or more. Here, k+n represents a valence of M. R.sup.1 represents an alkyl group, an aryl group, an alkoxy group, a carbonyl group-containing group, a sulfonyl group-containing group, or a halogen atom. R.sup.2 and R.sup.3 represent a hydrogen atom, an alkyl group, an aryl group, an alkoxy group, a carbonyl group-containing group, a sulfonyl group-containing group, or a halogen atom. L represents a monodentate ligand.

The present disclosure relates to poly(alpha-olefin)s and methods for making poly(alpha-olefin)s. A poly(alpha-olefin) may include about 95 wt % or greater C.sub.10-C.sub.18 alpha-olefin content and have a weight average molecular weight of from about 1,000,000 g/mol to about 10,000,000 g/mol. A method for forming a poly(alpha-olefin) may include introducing one or more C.sub.10-C.sub.18 alpha-olefins to a catalyst system comprising a catalyst compound and an activator. The method may include obtaining poly(alpha-olefin)s comprising about 95 wt % or greater C.sub.10-C.sub.18 alpha-olefin content and having a weight average molecular weight of from about 1,000,000 g/mol to about 10,000,000 g/mol.