Abstract:
There is provided a metalloporphyrin complex represented by general formula (1): wherein M is a metal; A 1 to A 4 are independently of each other a substituent represented by general formula (2): €ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ-D-E X - €ƒ€ƒ€ƒ€ƒ€ƒ(2) wherein D is a divalent organic group having 1 to 20 carbon atoms; E + is a quaternary ammonium group or quaternary phosphonium group having 3 to 60 carbon atoms; and X is a halogen atom. There is thus provided a metalloporphyrin complex which, when used as a carbon dioxide fixation catalyst, exhibits high catalytic activity, has a small environmental burden and can be easily synthesized.
Abstract:
The present invention relates to a method of manufacturing polyalkylene carbonate. More specifically, the method of manufacturing polyalkylene carbonate includes solution-polymerizing an epoxide compound and carbon dioxide in the presence of a cobalt complex having a neutral singe-site as a catalyst and a solvent, thereby providing stability and adjusting degree of polymerization and being advantageous for performing a post-treatment process after polymerization.
Abstract:
Industrially relevant product selectivities and reaction rates are obtained from rhodium catalyzed hydroformylation of propylene via the use of a novel induction period in which the supramolecular ligand assembly, the rhodium precatalyst and an initial substrate are allowed to form a hydroformylation catalyst that is more selective toward branched aldehydes. Upon heating this incubated mixture and addition of propylene, iso- butyraldehyde is obtained in higher concentrations and rates that are otherwise unattainable.
Abstract:
The present invention relates to the use of catalysts of formula: (L 1 )M 1 -X-M 2 (L 2 ), in which M 1 and M 2 , which are identical or different, represent metal atoms; X represents a nitrogen atom; and L 1 and L 2 , which may be identical or different, are coordinated with M 1 and M 2 , respectively, and represent tetradentate ligands, for the catalytic oxidation of halogenated compounds.
Abstract:
A light energy conversion material, comprising: a polysiloxane porous material having a light-collecting antenna function; and an electron donor and an electron acceptor disposed in at least one portion among a pore, a skeleton and the outer circumference of the porous material.
Abstract:
It is an object of the present invention to provide a beneficial composition in order to detoxify the harmful compound containing arsenic etc. effectively and systematically and a method for detoxifying a harmful compound by using the composition. The composition for the alkylation according to the present invention is characterized in that the composition contains a cobalt complex. The method of detoxifying the harmful compound according to the present invention is characterized in that a harmful compound containing at least one element selected from the groups comprising arsenic, antimony and selenium is detoxified by the alkylation of the harmful compound, in the presence of the composition according to the present invention.