Crystal Structure of Dibenzoyl Diselenide

Abstract

C₁₄H₁₀O₂Se₂ is monoclinic, P2₁/c. The unit-cell dimensions at 293 K are a = 12.795(2), b = 12.126(2), c = 9.0179(13)Å, β = 107.074(6)°, V = 1337.5(3)ų, and Z = 4. The R value is 0.048 for 2319 observed reflections. The dihedral angle between the plane C4-C7(O2)-Se1 and C9-C8(O1)-Se2 is 85.6(2)°, keeping the Se atom unshared electron pairs in a more stable configuration with the rest of the molecule. The packing in the crystal is entirely due to van der Waals forces.