N,N'-Bis[(E)-quinoxalin-2-ylmethyl-idene]-ethane-1,2-diamine

N-[(E)-Quinoxalin-2-ylmethyl-idene]-1H-indazol-5-amine

In the title mol­ecule, C₁₆H₁₁N₅, the mean planes of the quinoxaline and indazole fragments form a dihedral angle of 10.62 (5)°. In the crystal, weak inter­molecular N—H⋯N hydrogen bonds link the mol­ecules into zigzag chains extending in the [001] direction. The crystal packing also exhibits π–π inter­actions [centroid–centroid distances of 3.7080 (2) and 3.8220 (5) Å], which form stacks of the mol­ecules parallel to the a axis.

(Z)-2-Amino-3-[(E)-benzyl-ideneamino]but-2-enedinitrile

The asymmetric unit of the title compound, C(11)H(8)N(4), contains two independent mol-ecules. In the crystal structure, inter-molecular N-H⋯N hydrogen bonds link mol-ecules into ribbons extended in the [100] direction.