catena-Poly[[trimethyl-tin(IV)]-μ-(1,1'-binaphthyl-2,2'-diyl phospho-nato)].

In the title polymeric coordination compound, [Sn(CH(3))(3)(C(20)H(12)O(4)P)](n), the Sn atom exhibits a distorted trigonal-bipyramidal coordination geometry with the phosphate O atoms of the 1,1'-binaphthyl-2,2'-diyl phospho-nate ligands in axial positions and equatorial sites occupied by the three methyl groups. Adjacent Sn atoms are bridged by coordination to the two O atoms of each 1,1'-binaphthyl-2,2'-diyl phospho-nate ligand, forming a one-dimensional chain structure parallel to the b axis.