Abstract
The title compound, 2-phenyl-9-hydrazino-1,10-phenanthroline, crystallizes in the monoclinic space group P21/c with the following unit-cell parameters: a = 11.7738(3)Å, b = 20.9998(6)Å, c = 12.4546(4)Å, β = 106.750(1)° and V = 2948.71(15)Å3. The crystal structure was solved with a final R = 0.0612 using 6260 independent reflections; it contains two independent molecules in an asymmetric unit, which are joined into a dimer by hydrogen bonds between a phenanthroline N atom and the NH donor of the hydrazine substituent.
