| Poly[(5,7-dihydro-1,3,5,7-tetraoxobenzo[1,2-c:4,5-c']dipyrrole-2,6(1H,3H)-diyl)[3'-(trifluoromethyl)[1,1'-biphenyl]-2,4-diyl]oxy(2,2',3,3'-tetrahydro-3,3,3',3'-tetramethyl-1,1'-spirobi[1H-indene]-6,6'-diyl)oxy[3'-(trifluoromethyl)[1,1'-biphenyl]-4,2-diyl] |
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