Ti2Cr4Si5 crystallizes in the orthorhombic Ibam space group. Ti(1) is bonded in a 7-coordinate geometry to one Si(3), two equivalent Si(2), and four equivalent Si(1) atoms. There are two inequivalent Cr sites. In the first Cr site, Cr(1) is bonded in a 8-coordinate geometry to two equivalent Cr(1), two equivalent Si(3), and four equivalent Si(1) atoms. In the second Cr site, Cr(2) is bonded in a 7-coordinate geometry to one Si(1), two equivalent Si(2), and four equivalent Si(3) atoms. There are three inequivalent Si sites. In the first Si site, Si(1) is bonded in a 9-coordinate geometry to four equivalent Ti(1), one Cr(2), and four equivalent Cr(1) atoms. In the second Si site, Si(2) is bonded in a 10-coordinate geometry to four equivalent Ti(1), four equivalent Cr(2), and two equivalent Si(2) atoms. In the third Si site, Si(3) is bonded in a 10-coordinate geometry to one Ti(1), two equivalent Cr(1), four equivalent Cr(2), and three equivalent Si(3) atoms.
Ti2Cr4Si5 crystallizes in the orthorhombic Ibam space group. Ti(1) is bonded in a 7-coordinate geometry to one Si(3), two equivalent Si(2), and four equivalent Si(1) atoms. The Ti(1)-Si(3) bond length is 2.55 Å. Both Ti(1)-Si(2) bond lengths are 2.66 Å. There are two shorter (2.63 Å) and two longer (2.71 Å) Ti(1)-Si(1) bond lengths. There are two inequivalent Cr sites. In the first Cr site, Cr(1) is bonded in a 8-coordinate geometry to two equivalent Cr(1), two equivalent Si(3), and four equivalent Si(1) atoms. Both Cr(1)-Cr(1) bond lengths are 2.38 Å. Both Cr(1)-Si(3) bond lengths are 2.41 Å. There are two shorter (2.45 Å) and two longer (2.48 Å) Cr(1)-Si(1) bond lengths. In the second Cr site, Cr(2) is bonded in a 7-coordinate geometry to one Si(1), two equivalent Si(2), and four equivalent Si(3) atoms. The Cr(2)-Si(1) bond length is 2.35 Å. Both Cr(2)-Si(2) bond lengths are 2.42 Å. There are a spread of Cr(2)-Si(3) bond distances ranging from 2.36-2.68 Å. There are three inequivalent Si sites. In the first Si site, Si(1) is bonded in a 9-coordinate geometry to four equivalent Ti(1), one Cr(2), and four equivalent Cr(1) atoms. In the second Si site, Si(2) is bonded in a 10-coordinate geometry to four equivalent Ti(1), four equivalent Cr(2), and two equivalent Si(2) atoms. Both Si(2)-Si(2) bond lengths are 2.38 Å. In the third Si site, Si(3) is bonded in a 10-coordinate geometry to one Ti(1), two equivalent Cr(1), four equivalent Cr(2), and three equivalent Si(3) atoms. There is one shorter (2.35 Å) and two longer (2.66 Å) Si(3)-Si(3) bond lengths.