Materials Data on Mn3Al10 by Materials Project
Al10Mn3 crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Mn is bonded in a 12-coordinate geometry to two equivalent Mn and ten Al atoms. Both Mn–Mn bond lengths are 2.73 Å. There are a spread of Mn–Al bond distances ranging from 2.41–2.69 Å. There are five inequivalent Al sites. In the first Al site, Al is bonded to six equivalent Mn and six Al atoms to form face-sharing AlMn6Al6 cuboctahedra. All Al–Al bond lengths are 2.66 Å. In the second Al site, Al is bonded in a distorted linear geometry to two equivalent Mn and eight Al atoms. There are four shorter (2.80 Å) and four longer (2.97 Å) Al–Al bond lengths. In the third Al site, Al is bonded in a 3-coordinate geometry to three equivalent Mn and ten Al atoms. There are a spread of Al–Al bond distances ranging from 2.80–3.00 Å. In the fourth Al site, Al is bonded in a 3-coordinate geometry to three equivalent Mn and ten Al atoms. There are a spread of Al–Al bond distances ranging from 2.80–3.00 Å. In the fifth Al site, Al is bonded in a 3-coordinate geometry to three equivalent Mn and ten Al atoms. The Al–Al bond length is 2.88 Å.