SQUARYLIUM COMPOUND, PHOTO-ELECTRIC CONVERTING MATERIAL COMPRISING THE SAME, PHOTO-ELECTRIC CONVERTING ELEMENT, AND PHOTOELECTROCHEMICAL CELL

摘要

A squarylium compound represented by the following general formula (I) (wherein R¹ and R² are the same or different and each represents hydrogen, optionally substituted alkyl, etc.; R³, R⁴, R⁵, and R⁶ are the same or different and each represents hydrogen, optionally substituted alkyl, etc.; R⁷, R⁸, R⁹, and R¹⁰ are the same or different and each represents hydrogen, optionally substituted alkyl, etc.; X represents carbon, nitrogen, oxygen, or sulfur; R¹¹ represents halogeno, optionally substituted alkyl, etc.; m is an integer of 0-3; A represents an acid group; and n is an integer of 1-4).