LaTeCl is Matlockite structured and crystallizes in the tetragonal P4/nmm space group. La(1) is bonded in a 9-coordinate geometry to five equivalent Te(1) and four equivalent Cl(1) atoms. Te(1) is bonded to five equivalent La(1) atoms to form distorted TeLa5 trigonal bipyramids that share corners with twelve equivalent Cl(1)La4 tetrahedra, corners with four equivalent Te(1)La5 trigonal bipyramids, edges with four equivalent Cl(1)La4 tetrahedra, and edges with eight equivalent Te(1)La5 trigonal bipyramids. Cl(1) is bonded to four equivalent La(1) atoms to form ClLa4 tetrahedra that share corners with four equivalent Cl(1)La4 tetrahedra, corners with twelve equivalent Te(1)La5 trigonal bipyramids, edges with four equivalent Cl(1)La4 tetrahedra, and edges with four equivalent Te(1)La5 trigonal bipyramids.
LaTeCl is Matlockite structured and crystallizes in the tetragonal P4/nmm space group. La(1) is bonded in a 9-coordinate geometry to five equivalent Te(1) and four equivalent Cl(1) atoms. There is one shorter (3.30 Å) and four longer (3.37 Å) La(1)-Te(1) bond lengths. All La(1)-Cl(1) bond lengths are 3.03 Å. Te(1) is bonded to five equivalent La(1) atoms to form distorted TeLa5 trigonal bipyramids that share corners with twelve equivalent Cl(1)La4 tetrahedra, corners with four equivalent Te(1)La5 trigonal bipyramids, edges with four equivalent Cl(1)La4 tetrahedra, and edges with eight equivalent Te(1)La5 trigonal bipyramids. Cl(1) is bonded to four equivalent La(1) atoms to form ClLa4 tetrahedra that share corners with four equivalent Cl(1)La4 tetrahedra, corners with twelve equivalent Te(1)La5 trigonal bipyramids, edges with four equivalent Cl(1)La4 tetrahedra, and edges with four equivalent Te(1)La5 trigonal bipyramids.