METAL PORPHYRIN COMPLEX, METHOD FOR PRODUCING SAME, CARBON DIOXIDE IMMOBILIZATION CATALYST COMPRISING SAME, AND METHOD FOR PRODUCING CYCLIC CARBONIC ACID ESTER.
Provided is a metal porphyrin complex represented by general formula (1). (In formula (1), M is a metal. A1 to A4 are each independently a substituent group represented by general formula (2).) (In formula (2), 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. X is a halogen atom.) Therefore, provided is a metal porphyrin complex which, when used as a carbon dioxide immobilization catalyst, exhibits high catalytic activity, places little load on the environment and can be easily synthesized.