The presently-disclosed subject matter describes distorted gold (I) phosphine compounds. The presently-disclosed subject matter also describes a method for killing fungus comprising contacting fungus with distorted gold (I) phosphine compounds. The presently-disclosed subject matter further describes a method of preventing or disrupting a biofilm on a surface comprising contacting a surface with distorted gold (I) phosphine compounds.

Tridentate platinum, palladium, and gold complexes of Formulas A-I and A-II and tridentate iridium and rhodium compounds of Formulas B-I, B-II, and B-III suitable for delayed fluorescent and phosphorescent or phosphorescent emitters in display and lighting applications.

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The invention provides a zwitterionic plastic crystal (ZIPC) compound in the form of a single molecule comprising: at least one positively charged functional group carrying at least one positive charge, and at least one negatively functional group carrying at least one negative charge, wherein the positively charged functional groups and the negatively charged functional groups are covalently tethered together in the molecule, and the net charge of the zwitterionic compound is zero, and wherein the compound exhibits evidence of molecular disorder in the solid state.

Methods of preparing primary phosphine products using one or more precursor cyclophosphanes, hydrogen, and one or more Lewis acid catalysts. In some embodiments, a cyclophosphane precursor and at least one Lewis acid are dissolved in a solvent to provide a solution. The solution is treated with hydrogen, and optionally heated, to cause a reaction that produces a primary phosphine © product. The primary phosphine product may be isolated from the Lewis acid(s) and optionally purified. In some embodiments, a method may include synthesizing the cyclophosphane precursor prior to mixing the cyclophosphane precursor and the Lewis acid(s).

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.

By providing a novel polycyclic aromatic compound in which a plurality of aromatic rings are linked via a boron atom, a nitrogen atom, or the like, options of a material for an organic EL element are increased. In addition, by using the novel polycyclic aromatic compound as a material for an organic electroluminescent element, an excellent organic EL element is provided.

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.

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.

Novel dinuclear silver(I) pyrazolido complexes and methods of synthesizing them are provided. Advantageously, the novel silver(I) pyrazolido complexes have excellent antimicrobial activity and methods of using said complexes to treat bacterial, fungal, and viral infections are also provided.

A method for preparing a sensitizing material and an organic light emitting diode are provided, the method including: adding C.sub.24H.sub.16Br.sub.2P.sub.2 and dichloromethane to a hydrogen peroxide solution to react therewith, dissolving a reactant in a dichloromethane solution and subjecting the solution to a purification with a first silica gel column; adding a purified product, a predetermined electron donor material, palladium acetate, and tri-tert-butylphosphine tetrafluoroborate in sodium tert-butoxide and toluene to react; extracting with dichloromethane and purified by a second silica gel column.