Synthesis, Structure, and Magnetic Properties of a New Ternary Zintl Phase:  Sr₂₁Mn₄Sb₁₈

The Metal Flux: A Preparative Tool for the Exploration of Intermetallic Compounds

“…For example, the ternary arsenide Ba 0.8 Hf 12 As 17.7 was synthesized in a tin flux at 950 °C 162. With antimony, several ternary alkaline‐earth, rare‐earth metal, or uranium‐containing compounds such as RE 3 TiSb 5 ( RE =La, Ce, Pr, Nd, Sm),163 La 3 ZrSb 5 , La 3 HfSb 5 , LaCrSb 3 ,164 Sr 21 Mn 4 Sb 18 ,165 Eu 10 Mn 6 Sb 13 ,166 or U 3 TiSb 5 and U 3 MnSb 5 167 have been obtained in well crystallized form. For instance, the latter two antimonides were obtained with the atomic starting ratios U:Ti:Sb:Sn=1:3:2:6 and U:Mn:Sb:Sn=1:3:2:9 in alumina crucibles.…”

Metallische Schmelzen – Reaktionsmedien zur Präparation intermetallischer Verbindungen

“…Beispielsweise wurde das ternäre Arsenid Ba 0.8 Hf 12 As 17.7 bei 950 °C mithilfe einer Zinnschmelze synthetisiert 162. Mit Antimon wurden zahlreiche ternäre Erdalkali‐, Seltenerdmetall‐ und Uranverbindungen wie RE 3 TiSb 5 ( RE =La, Ce, Pr, Nd, Sm),163 La 3 ZrSb 5 , La 3 HfSb 5 , LaCrSb 3 ,164 Sr 21 Mn 4 Sb 18 ,165 Eu 10 Mn 6 Sb 13 166 oder U 3 TiSb 5 und U 3 MnSb 5 167 in gut kristallisierter Form erhalten. Zum Beispiel wurden die beiden zuletzt genannten Antimonide mithilfe einer Zinnflux, ausgehend von den atomaren Verhältnissen U/Ti/Sb/Sn=1:3:2:6 und U/Mn/Sb/Sn=1:3:2:9 in Korundtiegeln synthetisiert.…”

Synthesis, crystal structures, and physical properties of the new Zintl phases A21Zn4Pn18 (A=Ca, Eu; Pn=As, Sb)—Versatile arrangements of [ZnPn4] tetrahedra

“…Zintl phases formed between the alkali-, alkaline-earth, rare-earth metals and the groups 12−15 elements have generated much attention over the years [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17]. The compositions, crystal structures and physical properties of Zintl phases are strongly related to each other and these relationships can be explained by Zintl concept [4].…”

“…Inspired by these discoveries, we embarked on a series of exploratory syntheses, investigations of the crystal chemistry, and magnetic and transport properties of new compounds in the ternary systems A−Mn−Pn, A−Zn−Pn and A−Cd−Pn (A = alkalineearth metals, as well as the nominally divalent Eu and Yb from the lanthanide block; Pn = pnictogen elements) [9][10][11][12][13][14][15][16][17]. In recent years, our own research, as well as the research from other laboratories have confirmed that there are structural similarities among the Mn-, Zn-and Cd-ternary pnictides, whose structures are typically based on MnPn 4 , ZnPn 4 , and CdPn 4 tetrahedra.…”

“…In recent years, our own research, as well as the research from other laboratories have confirmed that there are structural similarities among the Mn-, Zn-and Cd-ternary pnictides, whose structures are typically based on MnPn 4 , ZnPn 4 , and CdPn 4 tetrahedra. For example, the tetrahedral building units can be isolated like in Yb 14 MnSb 11 [9], or interlinked in various ways as in the ribbons reported for Eu 11 Cd 6 Sb 12 and Eu 11 Zn 6 Sb 12 [10]; the layers in Ba 3 Cd 2 As 4 and Ba 3 Zn 2 As 4 [11]; and the clusters in Sr 21 Mn 4 Sb 18 [12] and Ca 21 Mn 4 Bi 18 [13]. [12] and Ca 21 Mn 4 Bi 18 [13], the polyanionic clusters made of MnSb 4 and MnBi 4 tetrahedra were considered, for some time, exclusive to the Mn-bearing compounds.…”