A complex formed by a zinc oxide molecule and a molecule comprising an acidic hydrogen is disclosed. The oxygen atom of the zinc oxide molecule is covalently bound to the acidic hydrogen.

Disclosed herein are methods of making nanostructured metal-organic frameworks. The methods include contacting a homogenized ligand solution with a homogenized aqueous metal salt solution at room temperature to form a mixture; and agitating the mixture for an amount of time to thereby form the nanostructured metal-organic framework at room temperature; wherein the homogenized ligand solution comprises a ligand dispersed substantially homogenously in a solvent selected from the group consisting of water, ethanol, isopropanol, n-propanol, lactic acid, and combinations thereof; and wherein the homogenized aqueous metal salt solution comprises a metal salt dispersed substantially homogenously in an aqueous solvent. Also disclosed herein are nanostructured metal-organic frameworks made by the methods described herein. Also disclosed herein are articles of manufacture comprising nanostructured metal-organic frameworks made by the methods described herein, such as filters, respirators, gas masks, human protection devices, catalysts, and catalyst supports.

An object of the present invention is to provide a novel complex having at least one carbon-carbon double bond and/or carbon-carbon triple bond. The present invention provides a complex represented by formula (1):
((RCOO).sub.8M.sub.5(OH).sub.2).sub.n (1)
wherein in the formula (1), M is a metal atom, R is a hydrogen atom, an alkyl group having 1 to 18 carbon atoms, an alkenyl group having 2 to 18 carbon atoms or an alkynyl group having 2 to 18 carbon atoms, a plurality of R may be identical to or different from each other, at least one of R is the alkenyl group having 2 to 18 carbon atoms or the alkynyl group having 2 to 18 carbon atoms, and n is an integer of 1 or more.

Flow batteries can include a first half-cell containing a first aqueous electrolyte solution, a second half-cell containing a second aqueous electrolyte solution, and a separator disposed between the first half-cell and the second half-cell. The first aqueous electrolyte solution contains a first redox-active material, and the second aqueous electrolyte solution contains a second redox-active material. At least one of the first redox-active material and the second redox-active material is a nitroxide compound or a salt thereof. Particular nitroxide compounds can include a doubly bonded oxygen contained in a ring bearing the nitroxide group, a doubly bonded oxygen appended to a ring bearing the nitroxide group, sulfate or phosphate groups appended to a ring bearing the nitroxide group, various heterocyclic rings bearing the nitroxide group, or acyclic nitroxide compounds.

This invention discloses iridium complexes with benzothienoquinoline, benzofuroquinoline, benzoselenophenoquinoline, and benzosiloloquinoline ligands. These complexes can be used as phosphorescent emitters in OLEDs.

An object of the present invention is to provide a novel complex having at least two carbon-carbon double bonds and/or carbon-carbon triple bonds. The present invention provides a complex represented by a structural formula (2): ##STR00001## [In the structural formula (2), M.sup.1 to M.sup.4 are identical to or different from each other and represent a metal atom, R.sup.1 to R.sup.6 are identical to or different from each other and represent a hydrogen atom, an alkyl group having 1 to 18 carbon atoms, an alkenyl group having 2 to 18 carbon atoms or an alkynyl group having 2 to 18 carbon atoms, and at least two of R.sup.1 to R.sup.6 are the alkenyl group having 2 to 18 carbon atoms or the alkynyl group having 2 to 18 carbon atoms.].

An object of the present invention is to provide a novel complex having at least two carbon-carbon double bonds and/or carbon-carbon triple bonds. The present invention provides a complex represented by a structural formula (2):

##STR00001##

[In the structural formula (2), M.sup.1 to M.sup.4 are identical to or different from each other and represent a metal atom, R.sup.1 to R.sup.6 are identical to or different from each other and represent a hydrogen atom, an alkyl group having 1 to 24 carbon atoms, an alkenyl group having 2 to 18 carbon atoms or an alkynyl group having 2 to 18 carbon atoms, at least two of R.sup.1 to R.sup.6 are the alkenyl group having 2 to 18 carbon atoms or the alkynyl group having 2 to 18 carbon atoms, and at least one of R.sup.1 to R.sup.6 is the alkyl group having 6 to 24 carbon atoms].

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%.

The present disclosure relates to an azobenzene-graphene metal coordination solar photothermal energy storage material based on metal coordination bonds and a preparation method thereof. The method comprises the following steps: preparing reduced graphene oxide; preparing an azobenzene-graphene material; and preparing an azobenzene-graphene metal coordination solar photothermal energy storage material: dispersing the prepared azobenzene-graphene material in DMF, dissolving a certain amount of metal compound in DMF, adding the DMF solution of the metal compound into the DMF solution of the azobenzene-graphene, taking out the precipitate, washing off metal ions which do not participate in coordination, and drying the obtained product to obtain the azobenzene-graphene metal coordination solar photothermal energy storage material. The present disclosure also relates to a method for improving the solar photothermal energy storage ability of a molecular solar energy fuel, comprising using an azobenzene-graphene metal coordination solar photothermal energy storage material.

A method for enhancing the conductivity of MOF-5 by the development of an MOF-5 polymer composite material. The composite material incorporates a conductive polymer, preferably polyaniline, in the solvo-thermal synthesis pathway of MOF-5. The electrically conductive MOF-5 composite exhibits electric conductivity three orders of magnitude higher than that of MOF-5 while maintaining the crystallinity, robustness, and thermal stability of MOF-5.