TiAgSe2 is Ilmenite-like structured and crystallizes in the trigonal R3m space group. Ti(1) is bonded to three equivalent Se(1) and three equivalent Se(2) atoms to form edge-sharing TiSe6 octahedra. Ag(1) is bonded in a distorted rectangular see-saw-like geometry to one Se(1) and three equivalent Se(2) atoms. There are two inequivalent Se sites. In the first Se site, Se(1) is bonded in a rectangular see-saw-like geometry to three equivalent Ti(1) and one Ag(1) atom. In the second Se site, Se(2) is bonded in a 6-coordinate geometry to three equivalent Ti(1) and three equivalent Ag(1) atoms.
TiAgSe2 is Ilmenite-like structured and crystallizes in the trigonal R3m space group. Ti(1) is bonded to three equivalent Se(1) and three equivalent Se(2) atoms to form edge-sharing TiSe6 octahedra. All Ti(1)-Se(1) bond lengths are 2.60 Å. All Ti(1)-Se(2) bond lengths are 2.63 Å. Ag(1) is bonded in a distorted rectangular see-saw-like geometry to one Se(1) and three equivalent Se(2) atoms. The Ag(1)-Se(1) bond length is 2.55 Å. All Ag(1)-Se(2) bond lengths are 2.78 Å. There are two inequivalent Se sites. In the first Se site, Se(1) is bonded in a rectangular see-saw-like geometry to three equivalent Ti(1) and one Ag(1) atom. In the second Se site, Se(2) is bonded in a 6-coordinate geometry to three equivalent Ti(1) and three equivalent Ag(1) atoms.