Materials Data on CaMg2 by Materials Project

doi:10.17188/1741898

Title: Materials Data on CaMg2 by Materials Project

Dataset
Other Related Research

Abstract

Mg2Ca crystallizes in the hexagonal P-6m2 space group. The structure is three-dimensional. there are two inequivalent Ca sites. In the first Ca site, Ca is bonded to six equivalent Ca and six Mg atoms to form CaCa6Mg6 cuboctahedra that share corners with six equivalent MgMg12 cuboctahedra, corners with twelve CaCa6Mg6 cuboctahedra, edges with six equivalent CaCa6Mg6 cuboctahedra, edges with twelve MgCa3Mg9 cuboctahedra, faces with seven CaCa6Mg6 cuboctahedra, and faces with thirteen MgMg12 cuboctahedra. All Ca–Ca bond lengths are 3.48 Å. All Ca–Mg bond lengths are 3.51 Å. In the second Ca site, Ca is bonded to six equivalent Ca and six Mg atoms to form CaCa6Mg6 cuboctahedra that share corners with six equivalent MgMg12 cuboctahedra, corners with twelve CaCa6Mg6 cuboctahedra, edges with six equivalent CaCa6Mg6 cuboctahedra, edges with twelve MgCa3Mg9 cuboctahedra, faces with seven CaCa6Mg6 cuboctahedra, and faces with thirteen MgMg12 cuboctahedra. All Ca–Ca bond lengths are 3.48 Å. All Ca–Mg bond lengths are 3.51 Å. There are three inequivalent Mg sites. In the first Mg site, Mg is bonded to twelve Mg atoms to form MgMg12 cuboctahedra that share corners with six equivalent MgMg12 cuboctahedra, corners with twelve CaCa6Mg6 cuboctahedra, edges with eighteen MgMg12 cuboctahedra, faces with two CaCa6Mg6more »« less

Authors:: The Materials Project

Publication Date:: 2020-05-03

Other Number(s):: mp-1039233

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; CaMg2; Ca-Mg

OSTI Identifier:: 1741898

DOI:: https://doi.org/10.17188/1741898

Citation Formats


                    The Materials Project. Materials Data on CaMg2 by Materials Project.  United States: N. p., 2020. 
        Web.  doi:10.17188/1741898.

Copy to clipboard


                    The Materials Project. Materials Data on CaMg2 by Materials Project.  United States.  doi:https://doi.org/10.17188/1741898

Copy to clipboard


                    The Materials Project. 2020.  
"Materials Data on CaMg2 by Materials Project".  United States.  doi:https://doi.org/10.17188/1741898.  https://www.osti.gov/servlets/purl/1741898. Pub date:Sun May 03 00:00:00 EDT 2020

Copy to clipboard


                    
@article{osti_1741898,

  title        = {Materials Data on CaMg2 by Materials Project},

  author       = {The Materials Project},

  abstractNote = {Mg2Ca crystallizes in the hexagonal P-6m2 space group. The structure is three-dimensional. there are two inequivalent Ca sites. In the first Ca site, Ca is bonded to six equivalent Ca and six Mg atoms to form CaCa6Mg6 cuboctahedra that share corners with six equivalent MgMg12 cuboctahedra, corners with twelve CaCa6Mg6 cuboctahedra, edges with six equivalent CaCa6Mg6 cuboctahedra, edges with twelve MgCa3Mg9 cuboctahedra, faces with seven CaCa6Mg6 cuboctahedra, and faces with thirteen MgMg12 cuboctahedra. All Ca–Ca bond lengths are 3.48 Å. All Ca–Mg bond lengths are 3.51 Å. In the second Ca site, Ca is bonded to six equivalent Ca and six Mg atoms to form CaCa6Mg6 cuboctahedra that share corners with six equivalent MgMg12 cuboctahedra, corners with twelve CaCa6Mg6 cuboctahedra, edges with six equivalent CaCa6Mg6 cuboctahedra, edges with twelve MgCa3Mg9 cuboctahedra, faces with seven CaCa6Mg6 cuboctahedra, and faces with thirteen MgMg12 cuboctahedra. All Ca–Ca bond lengths are 3.48 Å. All Ca–Mg bond lengths are 3.51 Å. There are three inequivalent Mg sites. In the first Mg site, Mg is bonded to twelve Mg atoms to form MgMg12 cuboctahedra that share corners with six equivalent MgMg12 cuboctahedra, corners with twelve CaCa6Mg6 cuboctahedra, edges with eighteen MgMg12 cuboctahedra, faces with two CaCa6Mg6 cuboctahedra, and faces with eighteen MgMg12 cuboctahedra. There are six shorter (3.28 Å) and six longer (3.48 Å) Mg–Mg bond lengths. In the second Mg site, Mg is bonded to three equivalent Ca and nine Mg atoms to form distorted MgCa3Mg9 cuboctahedra that share corners with eighteen MgCa3Mg9 cuboctahedra, edges with six equivalent CaCa6Mg6 cuboctahedra, edges with twelve MgMg12 cuboctahedra, faces with six equivalent CaCa6Mg6 cuboctahedra, and faces with fourteen MgMg12 cuboctahedra. All Mg–Mg bond lengths are 3.48 Å. In the third Mg site, Mg is bonded to six Ca and six equivalent Mg atoms to form distorted MgCa6Mg6 cuboctahedra that share corners with eighteen MgCa3Mg9 cuboctahedra, edges with six equivalent MgCa6Mg6 cuboctahedra, edges with twelve CaCa6Mg6 cuboctahedra, faces with eight MgCa3Mg9 cuboctahedra, and faces with twelve CaCa6Mg6 cuboctahedra. All Mg–Mg bond lengths are 3.48 Å.},

  doi          = {10.17188/1741898},

  journal      = {},

  number       = ,

  volume       = ,

  place        = {United States},

  year         = {2020},

  month        = {5}

}

Copy to clipboard

Dataset:

View Dataset

DOI: https://doi.org/10.17188/1741898

Save / Share:

Export Metadata

Save to My Library

Similar records in DOE Data Explorer and OSTI.GOV collections:

Materials Data on CaMg2 by Materials Project

Dataset The Materials Project

Mg2Ca is Hexagonal Laves structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Ca is bonded in a 12-coordinate geometry to four equivalent Ca and twelve Mg atoms. There are one shorter (3.76 Å) and three longer (3.82 Å) Ca–Ca bond lengths. There are a spread of Ca–Mg bond distances ranging from 3.60–3.67 Å. There are two inequivalent Mg sites. In the first Mg site, Mg is bonded to six equivalent Ca and six equivalent Mg atoms to form a mixture of corner, edge, and face-sharing MgCa6Mg6 cuboctahedra. All Mg–Mg bond lengths are 3.10 Å. Inmore »« less
Materials Data on CaMg2(SO4)3 by Materials Project

Dataset The Materials Project

CaMg2(SO4)3 crystallizes in the hexagonal P6_3/m space group. The structure is three-dimensional. Ca2+ is bonded in a distorted hexagonal planar geometry to six equivalent O2- atoms. All Ca–O bond lengths are 2.43 Å. Mg2+ is bonded to six O2- atoms to form MgO6 octahedra that share corners with six equivalent SO4 tetrahedra and a faceface with one MgO6 octahedra. There are three shorter (2.04 Å) and three longer (2.17 Å) Mg–O bond lengths. S6+ is bonded to four O2- atoms to form SO4 tetrahedra that share corners with four equivalent MgO6 octahedra. The corner-sharing octahedra tilt angles range from 32–49°.more »« less
Materials Data on CaMg2(SO4)3 by Materials Project

Dataset The Materials Project

CaMg2(SO4)3 crystallizes in the monoclinic P2_1 space group. The structure is three-dimensional. there are four inequivalent Ca2+ sites. In the first Ca2+ site, Ca2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Ca–O bond distances ranging from 2.41–2.90 Å. In the second Ca2+ site, Ca2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Ca–O bond distances ranging from 2.41–2.91 Å. In the third Ca2+ site, Ca2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Ca–O bond distances ranging frommore »« less
Materials Data on CaMg2 by Materials Project

Dataset The Materials Project

Mg2Ca crystallizes in the monoclinic C2/c space group. The structure is three-dimensional. Ca is bonded to two equivalent Ca and ten equivalent Mg atoms to form CaCa2Mg10 cuboctahedra that share corners with six equivalent CaCa2Mg10 cuboctahedra, corners with twelve equivalent MgCa5Mg7 cuboctahedra, edges with eight equivalent MgCa5Mg7 cuboctahedra, edges with ten equivalent CaCa2Mg10 cuboctahedra, faces with four equivalent CaCa2Mg10 cuboctahedra, and faces with sixteen equivalent MgCa5Mg7 cuboctahedra. Both Ca–Ca bond lengths are 3.41 Å. There are a spread of Ca–Mg bond distances ranging from 3.36–3.53 Å. Mg is bonded to five equivalent Ca and seven equivalent Mg atoms to formmore »« less
Materials Data on CaMg2 by Materials Project

Dataset The Materials Project

Mg2Ca is Cubic Laves structured and crystallizes in the trigonal R32 space group. The structure is three-dimensional. Ca is bonded in a 12-coordinate geometry to four equivalent Ca and twelve Mg atoms. There are three shorter (3.78 Å) and one longer (3.91 Å) Ca–Ca bond lengths. There are a spread of Ca–Mg bond distances ranging from 3.60–3.73 Å. There are two inequivalent Mg sites. In the first Mg site, Mg is bonded to six equivalent Ca and six equivalent Mg atoms to form a mixture of corner, edge, and face-sharing MgCa6Mg6 cuboctahedra. All Mg–Mg bond lengths are 3.16 Å. Inmore »« less

Similar Records