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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on SrC2 by Materials Project

SrC2 crystallizes in the monoclinic C2/c space group. The structure is three-dimensional. Sr2+ is bonded to eight equivalent C1- atoms to form distorted SrC8 hexagonal bipyramids that share corners with eight equivalent CSr4C square pyramids and edges with twelve equivalent SrC8 hexagonal bipyramids. There are a spread of Sr–C bond distances ranging from 2.77–2.98 Å. C1- is bonded to four equivalent Sr2+ and one C1- atom to form distorted CSr4C square pyramids that share corners with four equivalent SrC8 hexagonal bipyramids, corners with sixteen equivalent CSr4C square pyramids, and edges with six equivalent CSr4C square pyramids. The C–C bond length is 1.26 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on SrC2 by Materials Project

SrC2 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Sr2+ is bonded in a distorted q4 geometry to ten equivalent C1- atoms. There are two shorter (2.78 Å) and eight longer (2.99 Å) Sr–C bond lengths. C1- is bonded in a 6-coordinate geometry to five equivalent Sr2+ and one C1- atom. The C–C bond length is 1.26 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on SrC2 by Materials Project

SrC2 crystallizes in the trigonal R-3m space group. The structure is three-dimensional. Sr2+ is bonded to eight equivalent C1- atoms to form SrC8 hexagonal bipyramids that share corners with eight equivalent CSr4C trigonal bipyramids and edges with twelve equivalent SrC8 hexagonal bipyramids. There are two shorter (2.83 Å) and six longer (2.95 Å) Sr–C bond lengths. C1- is bonded to four equivalent Sr2+ and one C1- atom to form distorted CSr4C trigonal bipyramids that share corners with four equivalent SrC8 hexagonal bipyramids, corners with sixteen equivalent CSr4C trigonal bipyramids, and edges with six equivalent CSr4C trigonal bipyramids. The C–C bond length is 1.27 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on SrC2 by Materials Project

SrC2 is Fluorite structured and crystallizes in the trigonal R-3m space group. The structure is three-dimensional. Sr2+ is bonded to eight equivalent C1- atoms to form edge-sharing SrC8 hexagonal bipyramids. There are six shorter (2.54 Å) and two longer (2.90 Å) Sr–C bond lengths. C1- is bonded to four equivalent Sr2+ atoms to form a mixture of edge and corner-sharing CSr4 trigonal pyramids.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on SrC2(SN)2 by Materials Project

Sr(SCN)2 crystallizes in the monoclinic C2/c space group. The structure is three-dimensional. Sr2+ is bonded in a 8-coordinate geometry to four equivalent N3- and four equivalent S2- atoms. There are two shorter (2.69 Å) and two longer (2.70 Å) Sr–N bond lengths. There are two shorter (3.20 Å) and two longer (3.28 Å) Sr–S bond lengths. C4+ is bonded in a distorted linear geometry to one N3- and one S2- atom. The C–N bond length is 1.19 Å. The C–S bond length is 1.62 Å. N3- is bonded in a 1-coordinate geometry to two equivalent Sr2+ and one C4+ atom. S2- is bonded in a 3-coordinate geometry to two equivalent Sr2+ and one C4+ atom.

36 MATERIALS SCIENCE↗