Bis{2-[(Tri­phenyl­meth­yl)amino]­phen­yl} diselenide aceto­nitrile monosolvate

The mol­ecular structure of the title compound, C₅₀H₄₀N₂Se₂·C₂H₃N, shows a syn conformation of the benzene rings bound to the Se atoms, with an Se—Se bond length of 2.3529 (6) Å and a C—Se—Se—C torsion angle of 93.53 (14)°. The two Se-bonded aromatic ring planes make a dihedral angle of 18.42 (16)°. Intra­molecular N—H...Se hydrogen bonds are noted. Inter­molecular C—H...Se inter­actions give rise to supra­molecular chains extended along [100]. One severely disordered aceto­nitrile solvent mol­ecule per asymmetric unit was treated with SQUEEZE in PLATON [Spek (2009). Acta Cryst. D65, 148–155]; the crystal data take the presence of this mol­ecule into account.