GdCoSi is Matlockite structured and crystallizes in the tetragonal P4/nmm space group. Gd(1) is bonded in a 9-coordinate geometry to four equivalent Co(1) and five equivalent Si(1) atoms. Co(1) is bonded in a 8-coordinate geometry to four equivalent Gd(1) and four equivalent Si(1) atoms. Si(1) is bonded in a 9-coordinate geometry to five equivalent Gd(1) and four equivalent Co(1) atoms.
GdCoSi is Matlockite structured and crystallizes in the tetragonal P4/nmm space group. Gd(1) is bonded in a 9-coordinate geometry to four equivalent Co(1) and five equivalent Si(1) atoms. All Gd(1)-Co(1) bond lengths are 3.00 Å. There are four shorter (2.95 Å) and one longer (3.51 Å) Gd(1)-Si(1) bond length. Co(1) is bonded in a 8-coordinate geometry to four equivalent Gd(1) and four equivalent Si(1) atoms. All Co(1)-Si(1) bond lengths are 2.30 Å. Si(1) is bonded in a 9-coordinate geometry to five equivalent Gd(1) and four equivalent Co(1) atoms.