| 摘要 |
Disclosed is a process for production of an asymmetric binuclear metal complex represented by the general formula: (L 1 ) 2 M 1 (BL)M 2 (L 2 ) 2 (X) n wherein M 1 and M 2 , which may be the same as or different from each other, represent a transition metal; L 1 and L 2 , which are different from each other, represent a chelate ligand capable of multidentate coordination and two L 1 s may be different from each other and two L 2 s may be different from each other; BL represents a bridging ligand having at least two cyclic structures each containing a hetero atom, the hetero atoms contained in the cyclic structures being ligand atoms coordinating to M 1 and M 2 ; X represents a counter ion; and n is the number of counter ions needed to neutralize the charge of the complex. In the process, the binuclear metal complex is isolated by adjusting the pH of the solution containing the binuclear metal complex to a value higher than 2.5. The binuclear metal complex obtained may be used as a dye to produce a photoelectric conversion element and a photochemical battery having higher photoelectric conversion efficiency and higher durability. |
