The invention relates to oligomerization of olefins, such as ethylene, to higher olefins, such as a mixture of 1-hexene and 1-octene, using a catalyst system that comprises a) a source of chromium b) one or more activators and c) a phosphacycle-containing ligating compound. Additionally, the invention relates to a phosphacycle-containing ligating compound and a process for making said compound.

Embodiments of the present disclosure describe a metal-organic framework (MOF) composition comprising a plurality of metal clusters, wherein the metal is chromium; and one or more tetratopic ligands; wherein the metal clusters and ligands associate to form a MOF with soc topology. A method of making a MOF comprising contacting a template MOF of formula Fe-soc-MOF and a reactant including chromium in a presence of dimethylformamide sufficient to replace Fe with Cr and form an exchanged MOF of formula Cr-soc-MOF. A method of sorbing water vapor comprising exposing a Cr-soc-MOF to an environment; and sorbing water vapor using the Cr-soc-MOF.

The present invention relates to a ligand compound, a catalyst system for olefin oligomerization and a method for oligomerizing an olefin using same. The catalyst system for olefin oligomerization according to the present invention exhibits high selectivity to 1-hexene or 1-octene while having excellent catalytic activity, thus enabling more efficient preparation of alpha-olefins.

An optical component forming composition is provided containing a compound represented by the following formula (1):

[L.sub.xTe(OR.sup.1).sub.y](1)

wherein: L is a ligand other than OR.sup.1; R.sup.1 is any of: a hydrogen atom; a substituted or unsubstituted, linear alkyl group having 1 to 20 carbon atoms, or branched or cyclic alkyl group having 3 to 20 carbon atoms; a substituted or unsubstituted aryl group having 6 to 20 carbon atoms; a substituted or unsubstituted alkenyl group having 2 to 20 carbon atoms; and a substituted or unsubstituted alkynyl group having 2 to 20 carbon atoms; x is an integer of 0 to 6; y is an integer of 0 to 6; a sum of x and y is 1 to 6; when x is 2 or more, a plurality of L may be the same or different; and when y is 2 or more, a plurality of R.sup.1 may be the same or different.

Phenoxyimine-based complexes, when activated, are suitable for catalyzing ring-opening metathesis polymerization (ROMP) reactions of cyclopentene and a comonomer under mild reaction conditions, for example, at reaction temperatures of about 196 C. and about 70 C. in diluents like toluene. The use of such activated phenoxyimine-based complexes may favor polymer products with a high cis-content.

Disclosed are molybdenum-containing complexes used in compositions and methods for inhibiting or reducing the deposition of foulant on equipment.

Disclosed are molybdenum-containing complexes used in compositions and methods for inhibiting or reducing high temperature corrosion in petroleum refineries.

This invention relates to a catalyst compound for an olefin polymerization catalyst system represented by the formula: ##STR00001##
where each T is independently O, S, or N, each Q is independently C or Si; each R.sup.1, R.sup.2, and R.sup.3 is a substituted C.sub.1 to C.sub.40 hydrocarbyl group, a C.sub.1 to C.sub.40 hydrocarbyl group, or a substituted heteroatom, provided that the sum of the molecular volume of R.sup.1, R.sup.2, and R.sup.3 is greater than or equal to two times the molecular volume of an isopropyl group.

Systems and methods for automatically generating a set of meta-parameters used to train invariant-based anomaly detectors are provided. Data is transformed into a first set of time series data and a second set of time series data. A fitness threshold search is performed on the first set of time series data to automatically generate a fitness threshold, and a time resolution search is performed on the set of second time series data to automatically generate a time resolution. A set of meta-parameters including the fitness threshold and the time resolution are sent to one or more user devices across a network to govern the training of an invariant-based anomaly detector.

Provided herein are methods for the production of glycopyrronium tosylate and glycopyrronium tosylate compositions. Also provided herein are compositions useful in the production of glycopyrronium tosylate. Additionally provided herein are glycopyrronium tosylate compositions. Glycopyrronium tosylate is useful for the treatment of, among other conditions, hyperhidrosis.