NaMgCoO2 crystallizes in the monoclinic C2 space group. Na(1) is bonded to four equivalent O(1) atoms to form distorted NaO4 trigonal pyramids that share corners with four equivalent Na(1)O4 trigonal pyramids and edges with four equivalent Mg(1)O4 trigonal pyramids. Mg(1) is bonded to four equivalent O(1) atoms to form distorted MgO4 trigonal pyramids that share corners with four equivalent Mg(1)O4 trigonal pyramids and edges with four equivalent Na(1)O4 trigonal pyramids. Co(1) is bonded in a linear geometry to two equivalent O(1) atoms. O(1) is bonded to two equivalent Na(1), two equivalent Mg(1), and one Co(1) atom to form a mixture of distorted edge and corner-sharing ONa2Mg2Co trigonal bipyramids.
NaMgCoO2 crystallizes in the monoclinic C2 space group. Na(1) is bonded to four equivalent O(1) atoms to form distorted NaO4 trigonal pyramids that share corners with four equivalent Na(1)O4 trigonal pyramids and edges with four equivalent Mg(1)O4 trigonal pyramids. There are two shorter (2.11 Å) and two longer (2.12 Å) Na(1)-O(1) bond lengths. Mg(1) is bonded to four equivalent O(1) atoms to form distorted MgO4 trigonal pyramids that share corners with four equivalent Mg(1)O4 trigonal pyramids and edges with four equivalent Na(1)O4 trigonal pyramids. There are two shorter (2.11 Å) and two longer (2.12 Å) Mg(1)-O(1) bond lengths. Co(1) is bonded in a linear geometry to two equivalent O(1) atoms. Both Co(1)-O(1) bond lengths are 1.81 Å. O(1) is bonded to two equivalent Na(1), two equivalent Mg(1), and one Co(1) atom to form a mixture of distorted edge and corner-sharing ONa2Mg2Co trigonal bipyramids.