Materials Data on La2MgS4 by Materials Project

MgLa2S4 is Spinel structured and crystallizes in the cubic Fd-3m space group. The structure is three-dimensional. Mg2+ is bonded to four equivalent S2- atoms to form MgS4 tetrahedra that share corners with twelve equivalent LaS6 octahedra. The corner-sharing octahedral tilt angles are 55°. All Mg–S bond lengths are 2.57 Å. La3+ is bonded to six equivalent S2- atoms to form LaS6 octahedra that share corners with six equivalent MgS4 tetrahedra and edges with six equivalent LaS6 octahedra. All La–S bond lengths are 2.89 Å. S2- is bonded in a distorted rectangular see-saw-like geometry to one Mg2+ and three equivalent La3+ atoms.

MgLa₂S₄具有尖晶石结构，结晶于立方晶系Fd-3m空间群。其晶体结构为三维骨架结构。Mg²+与四个等价的S²-离子键合，形成MgS₄四面体，该四面体与十二个等价的LaS₆八面体共顶点。共顶点八面体的倾斜角为55°。所有Mg-S键的键长均为2.57 Å。La³+与六个等价的S²-离子键合，形成LaS₆八面体，该八面体既与六个等价的MgS₄四面体共顶点，又与六个等价的LaS₆八面体共边。所有La-S键的键长均为2.89 Å。S²-以畸变的矩形跷跷板状配位几何构型，与一个Mg²+和三个等价的La³+离子键合。