Solvothermal Synthesis, Crystal Structure, and Thermal Stability of Three‐Layered Thioantimonate(III) Complexes: [Ni(C₃H₁₀N₂)₃] Sb₄S₇, [C₄H₁₄N₂] Sb₈S₁₃×H₂O, and [C₆H₁₈N₂] Sb₁₀S₁₆×H₂O.

Abstract

and [C6H18N2]Sb10S16·H2O. -The structures of the title compounds (IV) (monoclinic, space group P21/n, Z = 4). (V) (monoclinic, space group P21/c, Z = 4), and (VI) (monoclinic, space group P21/c, Z = 4) are determined by single crystal XRD. In compound (IV), a rectangle-like Sb16S16 heteroring is found. Its size of about 8.1 x 14.7 Å represents the largest pore reported so far for layered thioantimonates. Further condensation of the Sb16S16 ring results in an unprecedented framework of the five-atom thick Sbx layer. In (V), a new member of SbnSn (n = 2, 3, 4, 8, 16, 30, 31, 32) heterocycles, Sb15S15, is observed for the first time. Compound (VI) contains Sb30S30 rings. The most striking feature of this structure is that the Sb2 atom becomes sevenfold coordinated. -(ZHANG, M.; SHENG, T. L.; HUANG, X. H.; FU, R. B.; WANG, X.; HU, S. M.; XIANG, S. C.; WU*, X. T.; Eur.

Robust and Flexible Thioantimonate Materials for Cs+ Remediation with Distinctive Structural Transformation: A Clear Insight into the Ion-Exchange Mechanism

“…Each Sb atom is coordinated by three adjacent S atoms forming a {SbS 3 } trigonal pyramid. The Sb–S bond lengths scatter over a range from 2.344 to 2.523 Å, and corresponding S–Sb–S angles are in the range of 79.49–100.67° (Table S2), comparable to those of reported thioantimonates. − {Sb(1)­S 3 }, {Sb(2)­S 3 }, and {Sb(3)­S 3 } units are joined together via corner-sharing to form a trinuclear {Sb 3 S 6 } cluster, while one {Sb(5)­S 3 } and two {Sb(4)­S 3 } units are joined together via corner-sharing to give a linear trinuclear {Sb 3 S 7 } unit (Figure S2a). Alternating arrangements of two {Sb 3 S 6 } clusters and two {Sb 3 S 7 } units result in a 10-membered {Sb 10 S 10 } ring containing 10 {SbS 3 } units, whose cross section is 12.495 × 12.495 Å 2 (Figure S2a).…”