2,2'-((2Z,2'Z)-((3',6'-bis((4-ethylphenyl)(3-fluoro-4-methylphenyl)amino)-6,6''-dioctyl-[2,2':5',2''-terthieno[3,2-b]thiophene]-5,5''-diyl)bis(methanylylidene))bis(5,6-difluoro-3-oxo-2,3-dihydro-1H-indene-2,1-diylidene))dimalononitrile