An unprecedented pentanary chalcohalide with Mn atoms in two chemical environments: unique bonding characteristics and magnetic properties. Issue 1 (4th December 2018)

• Record Type: Journal Article
• Authors: Zheng, Yu-Jun; Shi, Yong-Fang; Tian, Chong-Bin; Lin, Hua; Wu, Li-Ming; Wu, Xin-Tao; Zhu, Qi-Long
• Is Part Of: Chemical communications. Volume 55:Issue 1(2019)
• Page Start: 79
• Page End: 82
• Publication Date: 2018-12-04
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/c8cc08380k
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : An unprecedented 2D layered pentanary chalcohalide Cs2 [Mn2 Ga3 S7 Cl] features distinguishing structure characteristics with the coexistence of two Mn-coordinated polyhedra and shows interesting ferrimagnetic behaviour. Abstract : Mixed-anion chalcohalides have attracted significant attention lately, attributable to their unique structure compositions and captivating physicochemical properties. Herein, an unprecedented pentanary chalcohalide, Cs2 [Mn2 Ga3 S7 Cl] (1 ), was discovered by solid-state reaction at 1223 K. It is constructed by alternately stacked layers, each of which is made by a 2D [Ga3 S9 ] 9− ribbon embedded with 1D [Mn2 S8 Cl] 13− chains. The coexistence of two Mn-coordinated polyhedra ([MnS6 ] octahedra and hetero-ligand [MnS3 Cl] tetrahedra) in one material is surprisingly observed for the first time in the Mn-containing inorganic chalcogenides or chalcohalides. More interestingly, it exhibits ferrimagnetic (FIM) behaviour, which could be correlated to the magnetic sub-lattice sites with different coordination geometries. This work suggests a new route for designing and searching for unique functional chalcohalides with different chemical environments.