Results for “Na(SnAs)2”

Materials Data on Na(SnAs)2 by Materials Project

Na(SnAs)2 crystallizes in the trigonal R-3m space group. The structure is two-dimensional and consists of three Na(SnAs)2 sheets oriented in the (0, 0, 1) direction. Na1+ is bonded to six equivalent As3- atoms to form edge-sharing NaAs6 octahedra. All Na–As bond lengths are 3.14 Å. Sn+2.50+ is bonded in a distorted T-shaped geometry to three equivalent As3- atoms. All Sn–As bond lengths are 2.72 Å. As3- is bonded to three equivalent Na1+ and three equivalent Sn+2.50+ atoms to form a mixture of corner and edge-sharing AsNa3Sn3 octahedra. The corner-sharing octahedral tilt angles are 0°.