Crystal structure of (4′E)-6′-(diethylamino)-2-[(E)-[(pyren-1-yl)methylidene]amino]-4′-{2-[(2E)-1,3,3-trimethyl-2,3-dihydro-1H-indol-2-ylidene]ethylidene}-1′,2,2′,3,3′,4′-hexahydrospiro[isoindole-1,9′-xanthene]-3-one, C54H48N4O2

C54H48N4O2, triclinic, P1‾$P\overline{1}$ (no. 2), a = 11.1883(5) Å, b = 13.5364(5) Å, c = 14.3412(5) Å, α = 105.885(3)°, β = 97.710(3)°, γ = 94.126(3)°, Z = 2, V = 2056.64(14) Å3, Rgt(F) = 0.0685, wRref(F2) = 0.1606, T = 293(2) K.