A high dimensional oxysulfide built from large iron-based clusters with partial charge-ordering

Abstract

We report in here the original Ba10Fe7.75Zn5.25S18Si3O12 oxysulfide which crystallizes in a new structural type. Contrary to the usual oxychalcogenides, it crystallizes with a non-centrosymmetric 3D spatial network structure built...

The first quaternary rare-earth oxythiogermanate with second-harmonic generation and ferromagnetic behavior

“…Based on this consideration, several oxyhalides and chalcohalides with balanced NLO performances have been studied, 6 including Pb 17 O 8 Cl 18 , 7 Pb 13 O 6 Cl 9 Br 5 , 8 Sn 7 Br 10 S 2 , 9 SnI 4 ·(S 8 ) 2 , 10 and [K 3 Cl][Mn 2 Ga 6 S 12 ]. 11 Besides, anion substitutions of Q 2− (Q = S, Se) with the lighter O 2− congener in oxides are inclined to form new oxychalcogenides with unique structures 12 and physical properties 13 because of the differences in bonding characters and electronegativity between O and Q atoms.…”

First Investigation of Nonlinear Optical Oxychalcogenide with Three‐Dimensional Anionic Framework and Special Windmill‐Like Functional Motifs†

“…Specifically, metal oxychalcogenides have gained attentions in various fields owing to their attractive applications in photocatalysis, [ 8 ] superconductivity, [ 9 ] magnetism, [ 10 ] and nonlinear optics. [ 11 ] Because of the different sizes, electronegativities, and polarizabilities between O 2– and S 2– anions, the heteroatomic coordination environments of the metal cations in oxychalcogenides are prone to forming high polarity, large anisotropy, and low symmetry.…”