The tri(o-chlorobenzyl) tin chloride as well as the tri(o-fluorobenzyl) tin was treated with aqueous solution of NaOH to formed the μ-oxygen-bis[tri(o- chlorobenzyl)tin] and μ-oxygen-bis[tri(o-fluorobenzyl)tin], respectively. The crystal and molecular structures of compound were determined by X-ray diffraction. The crystal(1) belongs to triclinic space group P1 with a = 1.0195(5), b = 1.0951(6), c = 1.0986(6) nm, α = 118.250(7), β = 104.923(7), γ = 99.534(8)°, V = 0.9827(9) nm 3, Z = 1, D x = 1.701g · cm -3, μ(MoKα) = 17.12cm -1, F (00...