N,N′-Bis[2-(dimethyl­amino)eth­yl]dithio­oxamide

In the title compound, C₁₀H₂₂N₄S₂, mol­ecules lie across crystallographic inversion centres. Weak N—H...N and N—H...S hydrogen-bonding inter­actions are observed in the mol­ecular structure.

N,N′-Bis[2-(2-pyrid­yl)eth­yl]dithio­oxamide

The title compound, C₁₆H₁₈N₄S₂, has a crystallographic inversion centre at the mid-point of the central C—C bond. The plane of the dithio­oxamide fragment is approximately perpendicular to the plane of the dimethyl­ene bridge [dihedral angle = 84.8 (1)°], the plane of which is in turn normal to the pyridine ring plane [dihedral angle = 89.80 (8)°]. An inter­molecular N—H...N hydrogen bond involving the amide NH group and the pyridine N atom [N...N = 3.0503 (18) Å and N—H...N = 145.8 (14)°] links the mol­ecules into chains extending along the c axis.