ORTEP of [2b]BF4 3CH2Cl2 with ellipsoids drawn at the 50 % probability level. The H atoms, disordered CH2Cl2 solvate molecules, and BF4− anion are omitted for clarity. Selected distances (Å): Ni1–Fe1 2.787, Ni1–P1 2.188, Ni1–P2 2.200, Ni1–S1 2.239, Ni1–S2 2.233, Fe1–S1 2.286, Fe1–S2 2.307, Fe1–C30 1.758, Fe1–C31 1.761, Fe1–P3 2.292.