A charge transfer material comprising a basic compound having negative charge
and
represented by the following general formula (I):
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 n1 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.
