Pyridine compound, its use as charge transfer material, and photoelectrochemical cell

摘要

A charge transfer material comprising a basic compound having negative charge and represented by the following general formula (I): (A1-L)n1-A2.M wherein A1 represents a group having negative charge; A2 represents a basic group; M represents a cation for neutralizing the negative charge of (A1-L)n1-A2; L represents a divalent linking group or a single bond; and nl represents an integer of 1 to 3. A photoelectric conversion device and a photo-electrochemical cell comprising the charge transfer material. A new nonvolatile pyridine compound, which is a low-viscosity liquid at room temperature, is preferably used for A2.