Multiple-metal complex-containing compound and metal complex, and manufacture methods therefor, and exhaust gas purification catalyst manufacture method using the same

摘要

The invention relates to a metal complex in which ligands are coordinated to one metal atom or a plurality of metal atoms of the same kind, characterized in that at least one of the ligands has an uncoordinated functional group that is not coordinated to a metal atom and that is selected from the group consisting of: -COOH, -COOR 8 , -CR 8 R 9 OH, -NR 8 {C(=O)R 9 }, -NR 8 R 9 , -CR 8 =N-R 9 , -CO-R 8 , -PR 8 R 9 , -P(=O)R 8 R 9 , -P(OR 8 )(OR 9 ), -S(=O) 2 R 8 , -S + (-O - )R 8 , -SR 8 , -CR 8 R 9 -SH, -CR 8 R 9 -SR 10 , and -CR 8 =CR 9 R 10 (R 8 to R 10 each independently are hydrogen or a monovalent organic group). The complexes may be dissolved and a porous metal oxide catalyst support impregnated with the solution, followed by drying and firing, to provide an exhaust gas purification catalyst.