(1E,2E)-1,2-Bis(2,3-dihydro-1H-inden-1-yl­idene)hydrazine

In the title compound, C₁₈H₁₆N₂, there are two independent half-mol­ecules (A and B) in the asymmetric unit, each mol­ecule being completed by an inversion center situated in the mid-point of the central N—N bond. The mol­ecules themselves therefore are essentially planar with r.m.s. deviations of 0.015 (1) and 0.020 (1) Å, respectively. In the crystal, mol­ecules are connected via C—H...π inter­actions in which only type B mol­ecules are donors, while both A and B mol­ecules act as acceptors. As a result, type B mol­ecules are linked into infinite chains along b, which are inter­connected by molecules of type A.