GdMnSi is Matlockite structured and crystallizes in the tetragonal P4/nmm space group. Gd(1) is bonded in a 5-coordinate geometry to five equivalent Si(1) atoms. Mn(1) is bonded to four equivalent Si(1) atoms to form a mixture of distorted corner and edge-sharing MnSi4 tetrahedra. Si(1) is bonded in a 9-coordinate geometry to five equivalent Gd(1) and four equivalent Mn(1) atoms.
GdMnSi is Matlockite structured and crystallizes in the tetragonal P4/nmm space group. Gd(1) is bonded in a 5-coordinate geometry to five equivalent Si(1) atoms. There are four shorter (3.00 Å) and one longer (3.25 Å) Gd(1)-Si(1) bond length. Mn(1) is bonded to four equivalent Si(1) atoms to form a mixture of distorted corner and edge-sharing MnSi4 tetrahedra. All Mn(1)-Si(1) bond lengths are 2.54 Å. Si(1) is bonded in a 9-coordinate geometry to five equivalent Gd(1) and four equivalent Mn(1) atoms.