| abstract |
To provide a metal complex that functions as an excellent anion sensor. At least one metal ion selected from ions of metals belonging to Groups 2 and 7-12 of the periodic table, sulfate ion, and the following general formula (I): [Formula 4] Wherein X, R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , A 1 and A 2 are as defined in the specification. The above problems are solved by an anion sensor comprising a metal complex composed of an organic ligand capable of bidentate coordination with ions. [Selection figure] None |