DOI: 10.17188/1747915
title: Materials Data on Mg17Al11Ga by Materials Project

description: Mg17GaAl11 is gamma-brass-derived structured and crystallizes in the monoclinic Cm space group. The structure is three-dimensional. there are eleven inequivalent Mg sites. In the first Mg site, Mg is bonded in a 10-coordinate geometry to four Mg and six Al atoms. There are a spread of Mg–Mg bond distances ranging from 3.05–3.14 Å. All Mg–Al bond lengths are 3.10 Å. In the second Mg site, Mg is bonded in a 12-coordinate geometry to four Mg, one Ga, and eleven Al atoms. There are one shorter (3.14 Å) and two longer (3.15 Å) Mg–Mg bond lengths. The Mg–Ga bond length is 3.23 Å. There are eight shorter (3.20 Å) and three longer (3.21 Å) Mg–Al bond lengths. In the third Mg site, Mg is bonded in a 10-coordinate geometry to four Mg and six Al atoms. There are one shorter (3.04 Å) and two longer (3.05 Å) Mg–Mg bond lengths. There are four shorter (3.09 Å) and two longer (3.10 Å) Mg–Al bond lengths. In the fourth Mg site, Mg is bonded in a 12-coordinate geometry to seven Mg and five Al atoms. There are two shorter (3.13 Å) and four longer (3.16 Å) Mg–Mg bond lengths. There are a spread of Mg–Al bond distances ranging from 2.89–3.18 Å. In the fifth Mg site, Mg is bonded in a 12-coordinate geometry to seven Mg, one Ga, and four Al atoms. There are a spread of Mg–Mg bond distances ranging from 3.14–3.16 Å. The Mg–Ga bond length is 2.86 Å. There are two shorter (2.98 Å) and two longer (3.17 Å) Mg–Al bond lengths. In the sixth Mg site, Mg is bonded in a 12-coordinate geometry to seven Mg, one Ga, and four Al atoms. There are a spread of Mg–Mg bond distances ranging from 3.05–3.16 Å. The Mg–Ga bond length is 3.17 Å. There are a spread of Mg–Al bond distances ranging from 2.89–3.17 Å. In the seventh Mg site, Mg is bonded in a 12-coordinate geometry to seven Mg, one Ga, and four Al atoms. There are a spread of Mg–Mg bond distances ranging from 3.14–3.16 Å. The Mg–Ga bond length is 2.96 Å. There are a spread of Mg–Al bond distances ranging from 2.90–3.18 Å. In the eighth Mg site, Mg is bonded in a 12-coordinate geometry to seven Mg and five Al atoms. There are one shorter (3.13 Å) and two longer (3.16 Å) Mg–Mg bond lengths. There are a spread of Mg–Al bond distances ranging from 2.89–3.18 Å. In the ninth Mg site, Mg is bonded in a 10-coordinate geometry to four Mg, one Ga, and five Al atoms. Both Mg–Mg bond lengths are 3.05 Å. The Mg–Ga bond length is 3.11 Å. All Mg–Al bond lengths are 3.10 Å. In the tenth Mg site, Mg is bonded in a 12-coordinate geometry to seven Mg and five Al atoms. The Mg–Mg bond length is 3.13 Å. There are a spread of Mg–Al bond distances ranging from 2.90–3.18 Å. In the eleventh Mg site, Mg is bonded in a 12-coordinate geometry to seven Mg and five Al atoms. There are a spread of Mg–Al bond distances ranging from 2.90–3.17 Å. Ga is bonded in a 11-coordinate geometry to eight Mg and three Al atoms. There are one shorter (2.69 Å) and two longer (2.77 Å) Ga–Al bond lengths. There are six inequivalent Al sites. In the first Al site, Al is bonded in a 11-coordinate geometry to eight Mg, one Ga, and two equivalent Al atoms. Both Al–Al bond lengths are 2.77 Å. In the second Al site, Al is bonded in a 11-coordinate geometry to eight Mg and three Al atoms. There are one shorter (2.70 Å) and two longer (2.76 Å) Al–Al bond lengths. In the third Al site, Al is bonded in a 11-coordinate geometry to eight Mg, one Ga, and two Al atoms. There are one shorter (2.70 Å) and one longer (2.75 Å) Al–Al bond lengths. In the fourth Al site, Al is bonded in a 11-coordinate geometry to eight Mg and three Al atoms. There are one shorter (2.70 Å) and one longer (2.76 Å) Al–Al bond lengths. In the fifth Al site, Al is bonded in a 11-coordinate geometry to eight Mg and three Al atoms. The Al–Al bond length is 2.76 Å. In the sixth Al site, Al is bonded in a 11-coordinate geometry to eight Mg and three Al atoms.