| 摘要 |
<p>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, -COOR8, -CR8R9OH, -NR8{C(=O)R9}, -NR8R9, -CR8=N-R9, -CO-R8, -PR8R9, -P(=O)R8R9, -P(OR8)(OR9), -S(=O)2R8, -S+(-O-)R8, -SR8, -CR8R9-SH, -CR8R9-SR10, and -CR8=CR9R10 (R8 to R10 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.
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