Synthesis, structural evolution and optical properties of a new family of oxychalcogenides [Sr₃VO₄][MQ₃] (M = Ga, In, Q = S, Se)

Abstract

A new family of oxychalcogenides, [Sr3VO4][MQ3] (M = Ga, In, Q = S, Se), was successfully synthesized via the high-temperature flux method. The Ga analogues feature a centrosymmetric (P21/c) 0-D...

Pb5(GeO4)(Ge2O7) and Pb3.32Ca1.68(GeO4)(Ge2O7): Two Nonlinear Optical Germanates Induced by Diverse PbOx Polyhedra

“…In general, different anions like O 2– , S 2– , and X – (X = F, Cl, Br, and I) show divergent binding affinities toward metal ions, and compounds fusing different anions display various building units and chemical bonds. Then, compounds with low-dimensional structures are obtained, which is supported by Pb 3 SBrI 3 , Pb 18 O 8 Cl 15 I 5 , and [Sr 3 VO 4 ]­[MQ 3 ] (M = Ga, In, Q = S, Se) . As a result, the incorporation of S 2– or X – anions into the title compounds may be conducive for low-dimensional structures and large anisotropic polarizability.…”

Heteroanion-introduction-driven birefringence enhancement in oxychalcogenide Ba3MIIGe3O2S8 (MII = Mn, Cd)

“…36 These values are higher compared to other reported TM-based oxychalcogenides, such as Sr 6 Cd 2 Sb 6 O 7 S 10 (1.89 eV), 37 Sm 3 NbS 3 O 4 (2.68 eV), 38 and [Sr 3 VO 4 ][InSe 3 ] (2.62 eV). 39 Additionally, Ba 3 M II Ge 3 S 8 O 2 (M II = Mn, Cd) exhibited high thermal stability up to 1100 K under a N 2 atmosphere based on the thermal analysis (Fig. S5†).…”

Oxychalcogenides: A Promising Class of Materials for Nonlinear Optical Crystals with Mixed‐Anion Groups

“…In 2022, four new miscellaneous-type oxychalcogenides, Sr 3 [VO 4 ][MQ 3 ] (M=Ga, In; Q=S, Se), were obtained through the high-temperature flux method by Huang et al [49] Although these compounds possess the same stoichiometric ratio, they exhibit two different kinds of new structural types. The Ga analogs Sr 4).…”