2-{(E)-N-[2-(1H-Inden-3-yl)eth-yl]imino-meth-yl}-1H-imidazole.

The asymmetric unit of the title compound, C(15)H(15)N(3), contains two crystallographically independent mol-ecules with very similar geometries. The imidazole and indenyl planes are approximately orthogonal, making dihedral angles of 88.21 (9) and 83.08 (9)%deg; in the two independent molecules. In the crystal, the imidazole units are linked by N-H⋯N hydrogen bonds into chains parallel to the 101) plane stretched in the diagonal direction [translation vector ([Formula: see text],1,0); C(4) motif]. Within a chain, there are two types of symmetrically non-equivalent alternating H-bonds which slightly differ in their parameters.