Crystal structure of (4′<i>E</i>)-6′-(diethylamino)-2-[(<i>E</i>)-[(pyren-1-yl)methylidene]amino]-4′-{2-[(2<i>E</i>)-1,3,3-trimethyl-2,3-dihydro-1<i>H</i>-indol-2-ylidene]ethylidene}-1′,2,2′,3,3′,4′-hexahydrospiro[isoindole-1,9′-xanthene]-3-one, C<sub>54</sub>H<sub>48</sub>N<sub>4</sub>O<sub>2</sub>
Zeitschrift für Kristallographie. New crystal structures/Zeitschrift für Kristallographie. New crystal structures