YSF is Matlockite structured and crystallizes in the tetragonal P4/nmm space group. Y(1) is bonded in a 9-coordinate geometry to five equivalent S(1) and four equivalent F(1) atoms. S(1) is bonded to five equivalent Y(1) atoms to form distorted SY5 trigonal bipyramids that share corners with twelve equivalent F(1)Y4 tetrahedra, corners with four equivalent S(1)Y5 trigonal bipyramids, edges with four equivalent F(1)Y4 tetrahedra, and edges with eight equivalent S(1)Y5 trigonal bipyramids. F(1) is bonded to four equivalent Y(1) atoms to form FY4 tetrahedra that share corners with four equivalent F(1)Y4 tetrahedra, corners with twelve equivalent S(1)Y5 trigonal bipyramids, edges with four equivalent F(1)Y4 tetrahedra, and edges with four equivalent S(1)Y5 trigonal bipyramids.
YSF is Matlockite structured and crystallizes in the tetragonal P4/nmm space group. Y(1) is bonded in a 9-coordinate geometry to five equivalent S(1) and four equivalent F(1) atoms. There are four shorter (2.81 Å) and one longer (2.86 Å) Y(1)-S(1) bond length. All Y(1)-F(1) bond lengths are 2.44 Å. S(1) is bonded to five equivalent Y(1) atoms to form distorted SY5 trigonal bipyramids that share corners with twelve equivalent F(1)Y4 tetrahedra, corners with four equivalent S(1)Y5 trigonal bipyramids, edges with four equivalent F(1)Y4 tetrahedra, and edges with eight equivalent S(1)Y5 trigonal bipyramids. F(1) is bonded to four equivalent Y(1) atoms to form FY4 tetrahedra that share corners with four equivalent F(1)Y4 tetrahedra, corners with twelve equivalent S(1)Y5 trigonal bipyramids, edges with four equivalent F(1)Y4 tetrahedra, and edges with four equivalent S(1)Y5 trigonal bipyramids.