K4MgV2(AgS4)2 crystallizes in the monoclinic C2 space group. There are four inequivalent K sites. In the first K site, K(1) is bonded in a 6-coordinate geometry to two equivalent S(1), two equivalent S(2), and two equivalent S(3) atoms. In the second K site, K(2) is bonded in a 6-coordinate geometry to two equivalent S(1), two equivalent S(3), and two equivalent S(4) atoms. In the third K site, K(3) is bonded in a 4-coordinate geometry to two equivalent S(2) and two equivalent S(4) atoms. In the fourth K site, K(4) is bonded in a 6-coordinate geometry to two equivalent S(2), two equivalent S(3), and four equivalent S(4) atoms. Mg(1) is bonded in a 4-coordinate geometry to two equivalent S(1) and two equivalent S(3) atoms. There are two inequivalent V sites. In the first V site, V(1) is bonded in a tetrahedral geometry to two equivalent S(1) and two equivalent S(2) atoms. In the second V site, V(2) is bonded in a tetrahedral geometry to two equivalent S(3) and two equivalent S(4) atoms. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded in a 4-coordinate geometry to two equivalent S(1) and two equivalent S(2) atoms. In the second Ag site, Ag(2) is bonded in a 4-coordinate geometry to two equivalent S(3) and two equivalent S(4) atoms. There are four inequivalent S sites. In the first S site, S(1) is bonded in a 2-coordinate geometry to one K(1), one K(2), one Mg(1), one V(1), and one Ag(1) atom. In the second S site, S(2) is bonded in a 5-coordinate geometry to one K(1), one K(3), one K(4), one V(1), and one Ag(1) atom. In the third S site, S(3) is bonded in a 6-coordinate geometry to one K(1), one K(2), one K(4), one Mg(1), one V(2), and one Ag(2) atom. In the fourth S site, S(4) is bonded in a 6-coordinate geometry to one K(2), one K(3), two equivalent K(4), one V(2), and one Ag(2) atom.
K4MgV2(AgS4)2 crystallizes in the monoclinic C2 space group. There are four inequivalent K sites. In the first K site, K(1) is bonded in a 6-coordinate geometry to two equivalent S(1), two equivalent S(2), and two equivalent S(3) atoms. Both K(1)-S(1) bond lengths are 3.41 Å. Both K(1)-S(2) bond lengths are 3.34 Å. Both K(1)-S(3) bond lengths are 3.30 Å. In the second K site, K(2) is bonded in a 6-coordinate geometry to two equivalent S(1), two equivalent S(3), and two equivalent S(4) atoms. Both K(2)-S(1) bond lengths are 3.47 Å. Both K(2)-S(3) bond lengths are 3.21 Å. Both K(2)-S(4) bond lengths are 3.19 Å. In the third K site, K(3) is bonded in a 4-coordinate geometry to two equivalent S(2) and two equivalent S(4) atoms. Both K(3)-S(2) bond lengths are 3.42 Å. Both K(3)-S(4) bond lengths are 3.29 Å. In the fourth K site, K(4) is bonded in a 6-coordinate geometry to two equivalent S(2), two equivalent S(3), and four equivalent S(4) atoms. Both K(4)-S(2) bond lengths are 3.31 Å. Both K(4)-S(3) bond lengths are 3.58 Å. There are two shorter (3.57 Å) and two longer (3.74 Å) K(4)-S(4) bond lengths. Mg(1) is bonded in a 4-coordinate geometry to two equivalent S(1) and two equivalent S(3) atoms. Both Mg(1)-S(1) bond lengths are 2.46 Å. Both Mg(1)-S(3) bond lengths are 2.47 Å. There are two inequivalent V sites. In the first V site, V(1) is bonded in a tetrahedral geometry to two equivalent S(1) and two equivalent S(2) atoms. Both V(1)-S(1) bond lengths are 2.26 Å. Both V(1)-S(2) bond lengths are 2.21 Å. In the second V site, V(2) is bonded in a tetrahedral geometry to two equivalent S(3) and two equivalent S(4) atoms. Both V(2)-S(3) bond lengths are 2.29 Å. Both V(2)-S(4) bond lengths are 2.20 Å. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded in a 4-coordinate geometry to two equivalent S(1) and two equivalent S(2) atoms. Both Ag(1)-S(1) bond lengths are 2.75 Å. Both Ag(1)-S(2) bond lengths are 2.49 Å. In the second Ag site, Ag(2) is bonded in a 4-coordinate geometry to two equivalent S(3) and two equivalent S(4) atoms. Both Ag(2)-S(3) bond lengths are 2.62 Å. Both Ag(2)-S(4) bond lengths are 2.55 Å. There are four inequivalent S sites. In the first S site, S(1) is bonded in a 2-coordinate geometry to one K(1), one K(2), one Mg(1), one V(1), and one Ag(1) atom. In the second S site, S(2) is bonded in a 5-coordinate geometry to one K(1), one K(3), one K(4), one V(1), and one Ag(1) atom. In the third S site, S(3) is bonded in a 6-coordinate geometry to one K(1), one K(2), one K(4), one Mg(1), one V(2), and one Ag(2) atom. In the fourth S site, S(4) is bonded in a 6-coordinate geometry to one K(2), one K(3), two equivalent K(4), one V(2), and one Ag(2) atom.