SCHEDULED MAINTENANCE
Synthesis and crystal chemistry of new ternary pnictides containing lithium—adding structural complexity one step at a time†
Abstract
This study focuses on the exploration of the ternary systems A–Li–Pn with A = Ca–Ba, Eu and Yb and Pn = As–Bi resulting in the extensions of the ALiPn series (A = Ca, Sr, Eu and Yb; Pn = As–Bi; orthorhombic Pnma) with the MgSrSi structure type and of the A3Li4Pn4 family (A = Ba, Eu; Pn = As–Bi; orthorhombic Immm) with the Zr3Cu4Si4 structure type, as well as the novel compound Eu4Li7Bi6 (monoclinic, C2/m) with its own structure type. The relevant structural relationships are discussed. The building blocks and the topology of the polyanionic networks among the three different structures are compared side-by-side. Electronic band structure calculations for EuLiSb, Eu3Li4Sb4 and Eu4Li7Bi6 are discussed; the magnetic susceptibility and resistivity of single-crystalline Eu3Li4Sb4 are also presented.
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