organic compounds
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The title compound, C34H30N4O2, lies on an inversion center and consists of two 3-substituted-1H-indole units linked by a 1,2-dimethylenehydrazine bridge. It is one of numerous examples in which two aromatic ring systems are joined by this 4-atom bridge. The geometry of the centrosymmetric bridge is: C(arom)—C = 1.444 (3), C=N = 1.284 (3), N—N = 1.414 (4) Å, C(arom)—C=N = 122.6 (2) and C=N—N = 111.9 (2)°. The nine non-H atoms of the indole unit lie in a plane (δr.m.s. = 0.0089 Å) which is twisted 6.0 (2)° with respect to the hydrazine bridge plane. The benzyloxymethyl substituents do not lie in the plane of the rest of the molecule and are in a folded rather than an extended conformation. This is described by the three torsion angles in the middle of the C=N—C—O—CBz group, viz. 98.5 (3), −62.1 (3), and −66.3 (2)°.