Materials Data on Ga2FeO4 by Materials Project

FeGa2O4 is Spinel-like structured and crystallizes in the orthorhombic Imma space group. The structure is three-dimensional. Fe2+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with six equivalent GaO4 tetrahedra, edges with two equivalent FeO6 octahedra, and edges with four equivalent GaO6 octahedra. There are four shorter (2.12 Å) and two longer (2.14 Å) Fe–O bond lengths. There are two inequivalent Ga3+ sites. In the first Ga3+ site, Ga3+ is bonded to four O2- atoms to form GaO4 tetrahedra that share corners with six equivalent FeO6 octahedra and corners with six equivalent GaO6 octahedra. The corner-sharing octahedra tilt angles range from 55–57°. There is two shorter (1.89 Å) and two longer (1.93 Å) Ga–O bond length. In the second Ga3+ site, Ga3+ is bonded to six O2- atoms to form GaO6 octahedra that share corners with six equivalent GaO4 tetrahedra, edges with two equivalent GaO6 octahedra, and edges with four equivalent FeO6 octahedra. There are two shorter (2.00 Å) and four longer (2.06 Å) Ga–O bond lengths. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a rectangular see-saw-like geometry to one Fe2+ and three Ga3+ atoms. In the second O2- site, O2- is bonded in a rectangular see-saw-like geometry to two equivalent Fe2+ and two Ga3+ atoms.

FeGa2O4具有类尖晶石（Spinel-like）结构，结晶于正交晶系（orthorhombic）的Imma空间群。该结构为三维结构。亚铁离子（Fe2+）与六个氧离子（O2-）配位形成FeO6八面体（FeO6 octahedra），该八面体与六个等价的GaO4四面体（GaO4 tetrahedra）共享顶点，与两个等价的FeO6八面体共享棱，同时与四个等价的GaO6八面体（GaO6 octahedra）共享棱。Fe—O键存在两种键长：四个较短键长（2.12 Å）与两个较长键长（2.14 Å）。

存在两个不等价的镓离子（Ga3+）位点。在第一个Ga3+位点中，Ga3+与四个O2-配位形成GaO4四面体，该四面体与六个等价的FeO6八面体及六个等价的GaO6八面体共享顶点。共顶点八面体的倾斜角范围为55°~57°。Ga—O键存在两种键长：两个较短键长（1.89 Å）与两个较长键长（1.93 Å）。

在第二个Ga3+位点中，Ga3+与六个O2-配位形成GaO6八面体，该八面体与六个等价的GaO4四面体共享顶点，与两个等价的GaO6八面体共享棱，同时与四个等价的FeO6八面体共享棱。Ga—O键存在两种键长：两个较短键长（2.00 Å）与四个较长键长（2.06 Å）。

存在两个不等价的氧离子（O2-）位点。在第一个O2-位点中，O2-以矩形跷跷板状配位几何结构与一个Fe2+及三个Ga3+成键。在第二个O2-位点中，O2-以矩形跷跷板状配位几何结构与两个等价的Fe2+及两个Ga3+成键。