A method for producing an organometallic nucleophile includes reacting an organohalide and a metal or metal compound with each other by a mechanochemical process in the presence of an ether compound in an amount of 0.5 to 10.0 equivalents relative to 1 equivalent of the organohalide. By utilizing the method, a method for producing an organometallic nucleophile can be performed without using a large-scale apparatus, a reaction method for reactions between an organometallic nucleophile and various organic electrophiles can be performed by an efficient and simplified means, and a simplified method for producing an organometallic nucleophile can be performed with high reactivity.

Provided is an organic metal complex having a structure represented by the following general formula (1):
ML.sub.mL′.sub.n  (1)
where: M represents a metal atom selected from Ir, Pt, Rh, Os, and Zn; L and L′, which are different from each other, each represent a bidentate ligand; m represents an integer of 1 to 3 and n represents an integer of 0 to 2, provided that m+n is 3; a partial structure ML.sub.m represents a structure represented by the following general formula (2): ##STR00001##
and a partial structure ML′.sub.n represents a structure including a monovalent bidentate ligand.

Provided is an organic metal complex having a structure represented by the following general formula (1):
ML.sub.mL′.sub.n  (1)
where: M represents a metal atom selected from Ir, Pt, Rh, Os, and Zn; L and L′, which are different from each other, each represent a bidentate ligand; m represents an integer of 1 to 3 and n represents an integer of 0 to 2, provided that m+n is 3; a partial structure ML.sub.m represents a structure represented by the following general formula (2): ##STR00001##
and a partial structure ML′.sub.n represents a structure including a monovalent bidentate ligand.

Provided is an organic metal complex having a structure represented by the following general formula (1):
ML.sub.mL′.sub.n  (1)
where: M represents a metal atom selected from Ir, Pt, Rh, Os, and Zn; L and L′, which are different from each other, each represent a bidentate ligand; m represents an integer of 1 to 3 and n represents an integer of 0 to 2, provided that m+n is 3; a partial structure ML.sub.m represents a structure represented by the following general formula (2): ##STR00001##
and a partial structure ML′.sub.n represents a structure including a monovalent bidentate ligand.

A composition can photocatalytically reduce carbon dioxide.

A composition can photocatalytically reduce carbon dioxide.

A composition can photocatalytically reduce carbon dioxide.

The present invention relates to a process for producing butadiene from ethanol, in two reaction steps, comprising a step a) of converting ethanol into acetaldehyde and a step b) of conversion into butadiene, said step b) simultaneously implementing a reaction step and a regeneration step in (n+n/2) fixed-bed reactors, n being equal to 4 or a multiple thereof, comprising a catalyst, said regeneration step comprising four successive regeneration phases, said step b) also implementing three regeneration loops.

The present invention relates to a preparation process for a Cu-based catalyst and use of the Cu-based catalyst as the dehydrogenation catalyst in producing a hydroxyketone compound such as acetoin. Said Cu-based catalyst shows a high the acetoin selectivity as the dehydrogenation catalyst for producing acetoin.

Disclosed is a method for preparing a solid material including manganese, the method including the following steps: a. bringing into contact an aqueous effluent including manganese, for example at least 5 mg/L, typically at least 5 to 50 mg/L, and preferably 7 to 25 mg/L of manganese, with an oxidizing agent, manganese, preferably at a temperature between 10° C. and 50° C., and obtaining an oxidized aqueous solution; b. adding a base to the oxidized aqueous solution obtained at the end of step a) until a pH of between 8 and 12, preferably greater than 9, and preferably from 9 to 10.5, and obtaining a solution including a precipitate; c. filtration of the solution obtained at the end of step b); and d. obtaining a solid material including manganese, and especially manganese (IV) and/or Mn (III).