Solid-state syntheses, crystal structures and properties of two novel metal sulfur chlorides—Zn6S5Cl2 and Hg3ZnS2Cl4

Synthesis, crystal structure and optical property of a novel metal chalcohalide: ZnHg3Se2Cl4

“…Despite the similar chemical formula, the title compound and the reported compound ZnHg 3 S 2 Cl 4 are subtly different due to the size effects originated from anions [25]. In the structure of ZnHg 3 S 2 Cl 4 , every Hg atom connected with one S atom and one Cl atom [25], while in title compound, the Hg2 atom is two-coordinated by Se atoms with a zig-linear geometry, while the split Hg1 atom is four-coordinated by two Se atoms and two Cl atoms to form the HgSe 2 Cl 2 unit.…”

“…In the structure of ZnHg 3 S 2 Cl 4 , every Hg atom connected with one S atom and one Cl atom [25], while in title compound, the Hg2 atom is two-coordinated by Se atoms with a zig-linear geometry, while the split Hg1 atom is four-coordinated by two Se atoms and two Cl atoms to form the HgSe 2 Cl 2 unit. From the other view, the Hg atoms and Se atoms connect with each other to form an interconnected 12-membered Hg 6 Se 6 rings with chair-like configuration.…”

“…Among them, ternary or quaternary metal chalcohalides are hybrid materials, whose compositions and band gaps usually lie between those of binary chalcogenides and binary halides, providing them much richer structural features and more chances to tune their band gaps [16][17][18][19][20][21][22][23][24][25][26][27][28]. In particular, mercury (II)-related chalcohalides are much attractive because mercury ions usually possess diverse coordination geometries varying from linear to octahedral, thus it has a greater tendency to form all kinds of architectures covering 0D, 1D, 2D, and 3D topologies [16,17,[20][21][22][23][24][25][26][27].…”

“…In particular, mercury (II)-related chalcohalides are much attractive because mercury ions usually possess diverse coordination geometries varying from linear to octahedral, thus it has a greater tendency to form all kinds of architectures covering 0D, 1D, 2D, and 3D topologies [16,17,[20][21][22][23][24][25][26][27]. In fact, some interesting structural factors of mercury (II) chalcohalides have been report.…”

“…Hg 4 In 2 Q 3 Cl 8 (Q= S, Se, Te) are a new class of 1 D chalcohalides, which feature the novel quaternary cationic nano-belts [26]. The compound ZnHg 3 S 2 Cl 4 is a case of 2D layered network, in which Hg 6 S 3 Cl 3 forms a novel 12-membered ring, and these rings connected with each other by sharing the edges to form a layer structure [25]. The compounds Hg 2 PbI 2 S 2 [20], Hg 7 InS 6 Cl 5 [16], and TlHg 6 Q 4 Br 5 (Q=S, Se) [27], are four cases of different 3D frameworks.…”