Crystal structures of the Ln4−xIn5−yS13 (Ln=La, Ce, Pr and Nd; x=0.08–0.12, y=0.21–0.24), La3In1.67S7, Gd3InS6 and La4Ag2In4S13 compounds

Ba5Cu8In2S12: a quaternary semiconductor with a unique 3D copper-rich framework and ultralow thermal conductivity

“…8 To date, a large number of ternary A/TM/Q and A/M/Q (A = cations; TM = coinage metals; M = group 13 metals; and Q = chalcogenides) systems with diverse crystal structures have been explored and synthesized. However, the existing examples for quaternary compounds based on the A/TM/M/Q systems are limited to only K 2 TMM 3 Se 6 (TM = Cu, Ag; M = Ga, In), 9 CsAgGa 2 Se 4 , 10 Ba 7 AgGa 5 Se 15 , 11 Ba 2 AgInS 4 , 12 Ba 4 TMGa 5 Q 12 (TM = Cu, Ag; Q = S, Se), 12,13 Ba 4 TMMSe 6 (TM = Cu, Ag; M = Ga, In; Q = S, Se), 14 Pb 8 TMIn 17 S 34 (TM = Cu, Ag, Au), 15 RE 2 CuInQ 5 (RE = La-Nd, Sm; Q = S, Se), 16 La 4 Ag 2 In 4 S 13 , 17 and RE 3 CuGaQ 7 (RE = La-Nd; Q = S, Se) compounds. 18 Moreover, all of them are not coinage metal-rich compounds, i.e., the ratio of TM/M r 1.…”

Ag5U(PS4)3: A Transition-Metal Actinide Phosphochalcogenide

“…The Ag–S distances in the structure of Ag 5 U­(PS 4 ) 3 range from 2.429(6) to 2.917(6) Å. These distances may be compared with those in structures having Ag + in similar coordination as in Ba 9 Ag 10 U 4 S 24 (2.526(2) to 2.852(4) Å); Ag 2 CdGeS 4 (2.522(1) to 2.570(1) Å); CsAgSb 4 S 7 (2.502(1) to 2.864(1) Å); KAg­(SCN) 2 (2.577(6) to2.7262(5) Å); and La 4 Ag 2 In 4 S 13 (2.659(1) to 2.933(1) Å). The P–S distances in the structure of Ag 5 U­(PS 4 ) 3 range from 2.008(7) to 2.064(7) Å.…”

Crystal structure of UT2Zn20 (T=Fe, Co, Ru, Rh, and Ir) phases

“…[14]). Such a description of the crystal lattice implies the appearance of some voids, which eventually could be filled by small enough guest atoms [15][16][17]. As a result, new quaternary compounds of the same Fd3m symmetry like the parent structure can be obtained.…”

“…As the distance between the geometry centers of these voids and the adjacent zinc atoms is approximately 1.9Å, hypothetically they might be occupied for example by carbon or boron atoms, hence leading to the formation of the novel compounds, e.g., UT 2 Zn 20 C, UT 2 Zn 20 C 4 , UT 2 Zn 20 C 12 , UT 2 Zn 20 C 5 , UT 2 Zn 20 C 13 and/or UT 2 Zn 20 C 17 . Another route of synthesizing novel phases is to substitute some of the atoms in the parent material [15][16][17]. For example, in the UT 2 Zn 20 compounds, one may attempt to replace part of the Zn atoms by indium atoms.…”