The title compound {[(p-MeC6H4CH2) 2Sn]2(O)(Cl)OC2H5}2 was synthesized by the reaction of bis(p-methylbenzyl)tin dichloride with KOH in ethanol. The crystal structure of the complex has been determined by X-ray diffraction. The crystal belongs to monoclinic, space group P21/c with a=1.1140(19) nm, b=2.423 1(3) nm, c= 2.521 1(3) nm, β=99.398(3)°, V=6.714(16) nm3, Z=4, Dc=1.493 g ·cm-3, μ(Mo Kα)=15.94 cm-1, F(000)=3024, R1= 0.0499, wR =0.101 7. The crystal structure shows that the coordination geometry of tin is a distorted trigonal bipyramid, and the ladder-like struct...