Pentaterbium lithium tristannide, Tb₅LiSn₃

Abstract

Key indicators: single-crystal X-ray study; T = 293 K; mean (Tb-Sn) = 0.001 Å; R factor = 0.021; wR factor = 0.066; data-to-parameter ratio = 15.4.The new ternary phase pentaterbium lithium tristannide, Tb 5 LiSn 3 , crystallizes in the hexagonal Hf 5 CuSn 3 structure type, which is a 'filled' version of the binary RE 5 Sn 3 phases (Mn 5 Si 3 -type) (RE is rare earth). The asymmetric unit contains two Tb sites (site symmetries 3.2 and m2m), one Li site (site symmetry 3.m) and one Sn site (site symmetry m2m). The 14-vertex Frank-Kasper polyhedra are typical for Li and Tb atoms. The environment of the Sn atom is a pseudo-FrankKasper polyhedron with a coordination number of 13 for the tin atom. One of the Tb atoms is enclosed in a 17-vertex polyhedron. The metallic type of bonding was indicated by an analysis of the interatomic distances. (1989, 1991, 1993). For the magnetic properties of related compounds, see: Tran et al. (2008). Related literature ExperimentalCrystal data

Tb3Sn7: polymorphism and crystal structure of high-temperature modification

“…In this respect it is interesting to study interactions of the components in systems which contain the rare-earth metals, tin and other elements such as transition metals or alkaline metals (Stetskiv et al, 2011(Stetskiv et al, , 2012Oshchapovsky et al, 2010aOshchapovsky et al, , 2011Oshchapovsky et al, , 2012Romaka et al, 2011;Pavlyuk et al, 1989). Al, Si, Ge, Sn etc.)…”

“…In this regard, the research was conducted in the following sequence: the synthesis of new phases, the study of phase diagrams to establish the mechanism of formation of the phases, and the study of their crystal structure and physical properties. In this respect it is interesting to study interactions of the components in systems which contain the rare-earth metals, tin and other elements such as transition metals or alkaline metals (Stetskiv et al, 2011(Stetskiv et al, , 2012Oshchapovsky et al, 2010aOshchapovsky et al, , 2011Oshchapovsky et al, , 2012Romaka et al, 2011;Pavlyuk et al, 1989).…”

Enhancement of Y5−xPrxSb3−yMy (M = Sn, Pb) Electrodes for Lithium- and Sodium-Ion Batteries by Structure Disordering and CNTs Additives

“…The incorporation of the third element (alkaline or transitions metals, marked as T) into the 2 b site leads to the realization of the RE 5 TM 3 ternary phase with a Hf 5 CuSn 3 structure type [ 5 ]. We detected the new ternary phase of Tb 5 LiSn 3 with fully filled 2 b site (Hf 5 CuSn 3 structure type) during the systematic study of the alloys of Tb—Li—Sn system [ 6 ]. The La 5 Li x Ge 3 phase, which formed by partial incorporation (up to x = 0.4) of lithium atoms into octahedral voids of the La 5 Ge 3 binary, was observed in La—Li—Ge system [ 3 ].…”

Structural peculiarities and electrochemical properties of R5M3 (R = La, Gd; M = Ge, Sn) doped by lithium

“…The new ternary Tb 5 LiSn 3 compound, with a fully filled 2b site (Hf 5 CuSn 3 structure type), was discovered during a systematic study of Tb-Li-Sn alloys [7]. The ternary compound La 5 Li x Ge 3 , formed by incorporation of up to x = 0.4 Li atoms into octahedral voids of binary La 5 Ge 3 , was observed in the La-Li-Ge system [8].…”