BaGa2SiS6 crystallizes in the triclinic P1 space group. Ba(1) is bonded in a 11-coordinate geometry to one S(6), two equivalent S(1), two equivalent S(2), two equivalent S(3), two equivalent S(4), and two equivalent S(5) atoms. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded to one S(1), one S(3), one S(4), and one S(5) atom to form GaS4 tetrahedra that share corners with two equivalent Ga(2)S4 tetrahedra and corners with two equivalent Si(1)S4 tetrahedra. In the second Ga site, Ga(2) is bonded to one S(1), one S(2), one S(5), and one S(6) atom to form GaS4 tetrahedra that share corners with two equivalent Ga(1)S4 tetrahedra and corners with two equivalent Si(1)S4 tetrahedra. Si(1) is bonded to one S(2), one S(3), one S(4), and one S(6) atom to form SiS4 tetrahedra that share corners with two equivalent Ga(1)S4 tetrahedra and corners with two equivalent Ga(2)S4 tetrahedra. There are six inequivalent S sites. In the first S site, S(1) is bonded in a distorted water-like geometry to two equivalent Ba(1), one Ga(1), and one Ga(2) atom. In the second S site, S(2) is bonded in a distorted water-like geometry to two equivalent Ba(1), one Ga(2), and one Si(1) atom. In the third S site, S(3) is bonded in a distorted water-like geometry to two equivalent Ba(1), one Ga(1), and one Si(1) atom. In the fourth S site, S(4) is bonded in a distorted water-like geometry to two equivalent Ba(1), one Ga(1), and one Si(1) atom. In the fifth S site, S(5) is bonded in a distorted water-like geometry to two equivalent Ba(1), one Ga(1), and one Ga(2) atom. In the sixth S site, S(6) is bonded in a distorted water-like geometry to one Ba(1), one Ga(2), and one Si(1) atom.
BaGa2SiS6 crystallizes in the triclinic P1 space group. Ba(1) is bonded in a 11-coordinate geometry to one S(6), two equivalent S(1), two equivalent S(2), two equivalent S(3), two equivalent S(4), and two equivalent S(5) atoms. The Ba(1)-S(6) bond length is 3.44 Å. There is one shorter (3.49 Å) and one longer (3.51 Å) Ba(1)-S(1) bond length. There is one shorter (3.47 Å) and one longer (3.77 Å) Ba(1)-S(2) bond length. There is one shorter (3.52 Å) and one longer (3.57 Å) Ba(1)-S(3) bond length. There is one shorter (3.52 Å) and one longer (3.55 Å) Ba(1)-S(4) bond length. Both Ba(1)-S(5) bond lengths are 3.50 Å. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded to one S(1), one S(3), one S(4), and one S(5) atom to form GaS4 tetrahedra that share corners with two equivalent Ga(2)S4 tetrahedra and corners with two equivalent Si(1)S4 tetrahedra. The Ga(1)-S(1) bond length is 2.26 Å. The Ga(1)-S(3) bond length is 2.31 Å. The Ga(1)-S(4) bond length is 2.30 Å. The Ga(1)-S(5) bond length is 2.24 Å. In the second Ga site, Ga(2) is bonded to one S(1), one S(2), one S(5), and one S(6) atom to form GaS4 tetrahedra that share corners with two equivalent Ga(1)S4 tetrahedra and corners with two equivalent Si(1)S4 tetrahedra. The Ga(2)-S(1) bond length is 2.26 Å. The Ga(2)-S(2) bond length is 2.32 Å. The Ga(2)-S(5) bond length is 2.26 Å. The Ga(2)-S(6) bond length is 2.29 Å. Si(1) is bonded to one S(2), one S(3), one S(4), and one S(6) atom to form SiS4 tetrahedra that share corners with two equivalent Ga(1)S4 tetrahedra and corners with two equivalent Ga(2)S4 tetrahedra. The Si(1)-S(2) bond length is 2.13 Å. The Si(1)-S(3) bond length is 2.14 Å. The Si(1)-S(4) bond length is 2.12 Å. The Si(1)-S(6) bond length is 2.12 Å. There are six inequivalent S sites. In the first S site, S(1) is bonded in a distorted water-like geometry to two equivalent Ba(1), one Ga(1), and one Ga(2) atom. In the second S site, S(2) is bonded in a distorted water-like geometry to two equivalent Ba(1), one Ga(2), and one Si(1) atom. In the third S site, S(3) is bonded in a distorted water-like geometry to two equivalent Ba(1), one Ga(1), and one Si(1) atom. In the fourth S site, S(4) is bonded in a distorted water-like geometry to two equivalent Ba(1), one Ga(1), and one Si(1) atom. In the fifth S site, S(5) is bonded in a distorted water-like geometry to two equivalent Ba(1), one Ga(1), and one Ga(2) atom. In the sixth S site, S(6) is bonded in a distorted water-like geometry to one Ba(1), one Ga(2), and one Si(1) atom.