Materials Data on MgZn2 by Materials Project

doi:10.17188/1687970

Title: Materials Data on MgZn2 by Materials Project

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Abstract

MgZn2 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. Mg is bonded to two equivalent Mg and ten Zn atoms to form distorted MgMg2Zn10 cuboctahedra that share corners with six equivalent MgMg2Zn10 cuboctahedra, corners with twelve ZnMg6Zn6 cuboctahedra, edges with eight equivalent MgMg2Zn10 cuboctahedra, edges with ten ZnMg6Zn6 cuboctahedra, faces with six equivalent MgMg2Zn10 cuboctahedra, and faces with fourteen ZnMg6Zn6 cuboctahedra. Both Mg–Mg bond lengths are 2.98 Å. There are a spread of Mg–Zn bond distances ranging from 2.84–2.89 Å. There are two inequivalent Zn sites. In the first Zn site, Zn is bonded to six equivalent Mg and six Zn atoms to form distorted ZnMg6Zn6 cuboctahedra that share corners with six equivalent MgMg2Zn10 cuboctahedra, corners with twelve ZnMg6Zn6 cuboctahedra, edges with seven equivalent MgMg2Zn10 cuboctahedra, edges with eleven equivalent ZnMg4Zn8 cuboctahedra, faces with six equivalent MgMg2Zn10 cuboctahedra, and faces with fourteen ZnMg6Zn6 cuboctahedra. There are a spread of Zn–Zn bond distances ranging from 2.83–2.98 Å. In the second Zn site, Zn is bonded to four equivalent Mg and eight Zn atoms to form distorted ZnMg4Zn8 cuboctahedra that share corners with six equivalent MgMg2Zn10 cuboctahedra, corners with twelve ZnMg6Zn6 cuboctahedra, edges with three equivalent MgMg2Zn10 cuboctahedra, edgesmore »« less

Authors:: The Materials Project

Publication Date:: 2020-05-03

Other Number(s):: mp-1094483

DOE Contract Number:: AC02-05CH11231; EDCBEE

Research Org.:: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). LBNL Materials Project

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES)

Collaborations:: MIT; UC Berkeley; Duke; U Louvain

Subject:: 36 MATERIALS SCIENCE

Keywords:: crystal structure; MgZn2; Mg-Zn

OSTI Identifier:: 1687970

DOI:: https://doi.org/10.17188/1687970

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                    The Materials Project. Materials Data on MgZn2 by Materials Project.  United States: N. p., 2020. 
        Web.  doi:10.17188/1687970.

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                    The Materials Project. Materials Data on MgZn2 by Materials Project.  United States.  doi:https://doi.org/10.17188/1687970

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                    The Materials Project. 2020.  
"Materials Data on MgZn2 by Materials Project".  United States.  doi:https://doi.org/10.17188/1687970.  https://www.osti.gov/servlets/purl/1687970. Pub date:Sun May 03 00:00:00 EDT 2020

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@article{osti_1687970,

  title        = {Materials Data on MgZn2 by Materials Project},

  author       = {The Materials Project},

  abstractNote = {MgZn2 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. Mg is bonded to two equivalent Mg and ten Zn atoms to form distorted MgMg2Zn10 cuboctahedra that share corners with six equivalent MgMg2Zn10 cuboctahedra, corners with twelve ZnMg6Zn6 cuboctahedra, edges with eight equivalent MgMg2Zn10 cuboctahedra, edges with ten ZnMg6Zn6 cuboctahedra, faces with six equivalent MgMg2Zn10 cuboctahedra, and faces with fourteen ZnMg6Zn6 cuboctahedra. Both Mg–Mg bond lengths are 2.98 Å. There are a spread of Mg–Zn bond distances ranging from 2.84–2.89 Å. There are two inequivalent Zn sites. In the first Zn site, Zn is bonded to six equivalent Mg and six Zn atoms to form distorted ZnMg6Zn6 cuboctahedra that share corners with six equivalent MgMg2Zn10 cuboctahedra, corners with twelve ZnMg6Zn6 cuboctahedra, edges with seven equivalent MgMg2Zn10 cuboctahedra, edges with eleven equivalent ZnMg4Zn8 cuboctahedra, faces with six equivalent MgMg2Zn10 cuboctahedra, and faces with fourteen ZnMg6Zn6 cuboctahedra. There are a spread of Zn–Zn bond distances ranging from 2.83–2.98 Å. In the second Zn site, Zn is bonded to four equivalent Mg and eight Zn atoms to form distorted ZnMg4Zn8 cuboctahedra that share corners with six equivalent MgMg2Zn10 cuboctahedra, corners with twelve ZnMg6Zn6 cuboctahedra, edges with three equivalent MgMg2Zn10 cuboctahedra, edges with fifteen ZnMg6Zn6 cuboctahedra, faces with eight equivalent MgMg2Zn10 cuboctahedra, and faces with twelve ZnMg6Zn6 cuboctahedra. There are four shorter (2.90 Å) and two longer (2.98 Å) Zn–Zn bond lengths.},

  doi          = {10.17188/1687970},

  journal      = {},

  number       = ,

  volume       = ,

  place        = {United States},

  year         = {2020},

  month        = {5}

}

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DOI: https://doi.org/10.17188/1687970

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Materials Data on MgZn2 by Materials Project

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MgZn2 is Hexagonal Laves structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Mg is bonded in a 12-coordinate geometry to four equivalent Mg and twelve Zn atoms. There are one shorter (3.17 Å) and three longer (3.21 Å) Mg–Mg bond lengths. There are a spread of Mg–Zn bond distances ranging from 3.03–3.08 Å. There are two inequivalent Zn sites. In the first Zn site, Zn is bonded to six equivalent Mg and six equivalent Zn atoms to form a mixture of edge, face, and corner-sharing ZnMg6Zn6 cuboctahedra. All Zn–Zn bond lengths are 2.62 Å. Inmore »« less
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MgZn2 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. Mg is bonded in a 9-coordinate geometry to nine Zn atoms. There are a spread of Mg–Zn bond distances ranging from 2.73–2.98 Å. There are two inequivalent Zn sites. In the first Zn site, Zn is bonded in a 7-coordinate geometry to five equivalent Mg and two equivalent Zn atoms. Both Zn–Zn bond lengths are 2.64 Å. In the second Zn site, Zn is bonded in a 10-coordinate geometry to four equivalent Mg and four Zn atoms. Both Zn–Zn bond lengths are 2.64 Å.
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MgZn2 is Cubic Laves structured and crystallizes in the trigonal R32 space group. The structure is three-dimensional. Mg is bonded in a 12-coordinate geometry to four equivalent Mg and twelve Zn atoms. There are three shorter (3.20 Å) and one longer (3.21 Å) Mg–Mg bond lengths. There are a spread of Mg–Zn bond distances ranging from 3.05–3.08 Å. There are two inequivalent Zn sites. In the first Zn site, Zn is bonded to six equivalent Mg and six equivalent Zn atoms to form a mixture of edge, corner, and face-sharing ZnMg6Zn6 cuboctahedra. All Zn–Zn bond lengths are 2.62 Å. Inmore »« less
Materials Data on MgZn2 by Materials Project

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MgZn2 is Bergman Structure: Mg32(Al,Zn)49 Bergman-derived structured and crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. Mg is bonded to two equivalent Mg and ten equivalent Zn atoms to form a mixture of distorted edge and face-sharing MgMg2Zn10 cuboctahedra. Both Mg–Mg bond lengths are 3.03 Å. There are a spread of Mg–Zn bond distances ranging from 2.82–3.06 Å. Zn is bonded in a 11-coordinate geometry to five equivalent Mg and six equivalent Zn atoms. There are a spread of Zn–Zn bond distances ranging from 2.70–2.85 Å.
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MgZn2 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. Mg is bonded to four equivalent Mg and eight Zn atoms to form distorted MgMg4Zn8 cuboctahedra that share corners with six equivalent MgMg4Zn8 cuboctahedra, corners with twelve ZnMg3Zn9 cuboctahedra, edges with six equivalent MgMg4Zn8 cuboctahedra, edges with twelve ZnMg3Zn9 cuboctahedra, faces with five equivalent MgMg4Zn8 cuboctahedra, and faces with fifteen ZnMg3Zn9 cuboctahedra. There are two shorter (2.94 Å) and two longer (3.07 Å) Mg–Mg bond lengths. There are a spread of Mg–Zn bond distances ranging from 2.79–2.95 Å. There are two inequivalent Zn sites. In the first Znmore »« less

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