Engineering Papers⌕ Search

SEARCH · Engineering Papers

Results for “F-Pb-Y”

Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

Materials Data on Y3Pb4F17 by Materials Project

Y3Pb4F17 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are six inequivalent Y3+ sites. In the first Y3+ site, Y3+ is bonded in a 8-coordinate geometry to eight F1- atoms. There are a spread of Y–F bond distances ranging from 2.23–2.35 Å. In the second Y3+ site, Y3+ is bonded in a 8-coordinate geometry to eight F1- atoms. There are a spread of Y–F bond distances ranging from 2.24–2.40 Å. In the third Y3+ site, Y3+ is bonded in a 8-coordinate geometry to eight F1- atoms. There are a spread of Y–F bond distances ranging from 2.25–2.36 Å. In the fourth Y3+ site, Y3+ is bonded in a 9-coordinate geometry to nine F1- atoms. There are a spread of Y–F bond distances ranging from 2.25–2.46 Å. In the fifth Y3+ site, Y3+ is bonded in a 8-coordinate geometry to eight F1- atoms. There are a spread of Y–F bond distances ranging from 2.23–2.36 Å. In the sixth Y3+ site, Y3+ is bonded in a 9-coordinate geometry to nine F1- atoms. There are a spread of Y–F bond distances ranging from 2.25–2.49 Å. There are eight inequivalent Pb2+ sites. In the first Pb2+ site, Pb2+ is bonded in a 8-coordinate geometry to eight F1- atoms. There are a spread of Pb–F bond distances ranging from 2.48–2.77 Å. In the second Pb2+ site, Pb2+ is bonded in a 10-coordinate geometry to ten F1- atoms. There are a spread of Pb–F bond distances ranging from 2.53–2.95 Å. In the third Pb2+ site, Pb2+ is bonded in a 7-coordinate geometry to eight F1- atoms. There are a spread of Pb–F bond distances ranging from 2.53–2.89 Å. In the fourth Pb2+ site, Pb2+ is bonded in a 8-coordinate geometry to eight F1- atoms. There are a spread of Pb–F bond distances ranging from 2.50–2.74 Å. In the fifth Pb2+ site, Pb2+ is bonded in a 11-coordinate geometry to eight F1- atoms. There are a spread of Pb–F bond distances ranging from 2.51–2.89 Å. In the sixth Pb2+ site, Pb2+ is bonded in a 9-coordinate geometry to eight F1- atoms. There are a spread of Pb–F bond distances ranging from 2.49–2.78 Å. In the seventh Pb2+ site, Pb2+ is bonded in a 10-coordinate geometry to ten F1- atoms. There are a spread of Pb–F bond distances ranging from 2.50–2.97 Å. In the eighth Pb2+ site, Pb2+ is bonded in a 11-coordinate geometry to eleven F1- atoms. There are a spread of Pb–F bond distances ranging from 2.55–3.15 Å. There are thirty-four inequivalent F1- sites. In the first F1- site, F1- is bonded in a 6-coordinate geometry to six Pb2+ and eight F1- atoms. There are a spread of F–F bond distances ranging from 2.68–2.80 Å. In the second F1- site, F1- is bonded to one Y3+ and three Pb2+ atoms to form a mixture of distorted edge and corner-sharing FYPb3 tetrahedra. In the third F1- site, F1- is bonded to four Pb2+ and one F1- atom to form distorted FPb4F tetrahedra that share corners with ten FY2Pb2 tetrahedra, edges with six FYPb3F tetrahedra, and faces with three FYPb3F tetrahedra. In the fourth F1- site, F1- is bonded to two Y3+ and two Pb2+ atoms to form distorted FY2Pb2 tetrahedra that share corners with ten FYPb3F tetrahedra and edges with four FY2Pb2 tetrahedra. In the fifth F1- site, F1- is bonded to one Y3+ and three Pb2+ atoms to form a mixture of distorted edge and corner-sharing FYPb3 tetrahedra. In the sixth F1- site, F1- is bonded to one Y3+, three Pb2+, and one F1- atom to form distorted FYPb3F tetrahedra that share corners with nine FYPb3 tetrahedra, edges with five FYPb3F tetrahedra, and faces with three FPb4F tetrahedra. In the seventh F1- site, F1- is bonded in a distorted bent 150 degrees geometry to two Y3+ and one Pb2+ atom. In the eighth F1- site, F1- is bonded to one Y3+, three Pb2+, and one F1- atom to form distorted FYPb3F tetrahedra that share corners with nine FY2Pb2 tetrahedra, edges with five FYPb3F tetrahedra, and faces with three FPb4F tetrahedra. In the ninth F1- site, F1- is bonded to two Y3+ and two Pb2+ atoms to form distorted FY2Pb2 tetrahedra that share corners with ten FYPb3 tetrahedra and edges with four FY2Pb2 tetrahedra. In the tenth F1- site, F1- is bonded to one Y3+ and three Pb2+ atoms to form distorted FYPb3 tetrahedra that share corners with eleven FYPb3F tetrahedra and edges with five FYPb3 tetrahedra. In the eleventh F1- site, F1- is bonded in a distorted bent 150 degrees geometry to two Y3+ and one Pb2+ atom. In the twelfth F1- site, F1- is bonded in a bent 150 degrees geometry to two Y3+ atoms. In the thirteenth F1- site, F1- is bonded to two Y3+ and two Pb2+ atoms to form distorted FY2Pb2 tetrahedra that share corners with ten FYPb3 tetrahedra and edges with four FYPb3F tetrahedra. In the fourteenth F1- site, F1- is bonded in a bent 150 degrees geometry to two Y3+ atoms. In the fifteenth F1- site, F1- is bonded in a distorted bent 120 degrees geometry to two Y3+ and one Pb2+ atom. In the sixteenth F1- site, F1- is bonded to one Y3+, three Pb2+, and one F1- atom to form distorted FYPb3F tetrahedra that share corners with nine FYPb3 tetrahedra, edges with five FY2Pb2 tetrahedra, and faces with three FPb4F tetrahedra. In the seventeenth F1- site, F1- is bonded in a bent 150 degrees geometry to two Y3+ atoms. In the eighteenth F1- site, F1- is bonded in a distorted bent 120 degrees geometry to two Y3+ and one Pb2+ atom. In the nineteenth F1- site, F1- is bonded in a water-like geometry to two Y3+ atoms. In the twentieth F1- site, F1- is bonded to one Y3+, three Pb2+, and one F1- atom to form distorted FYPb3F tetrahedra that share corners with nine FY2Pb2 tetrahedra, edges with five FYPb3 tetrahedra, and faces with three FPb4F tetrahedra. In the twenty-first F1- site, F1- is bonded in a distorted bent 150 degrees geometry to two Y3+ and one Pb2+ atom. In the twenty-second F1- site, F1- is bonded in a distorted bent 120 degrees geometry to two Y3+ atoms. In the twenty-third F1- site, F1- is bonded to two Y3+ and two Pb2+ atoms to form distorted FY2Pb2 tetrahedra that share corners with ten FYPb3F tetrahedra and edges with four FYPb3 tetrahedra. In the twenty-fourth F1- site, F1- is bonded in a bent 120 degrees geometry to two Y3+ and one Pb2+ atom. In the twenty-fifth F1- site, F1- is bonded in a distorted bent 150 degrees geometry to two Y3+ and one Pb2+ atom. In the twenty-sixth F1- site, F1- is bonded to one Y3+ and three Pb2+ atoms to form distorted FYPb3 tetrahedra that share corners with eleven FYPb3F tetrahedra and edges with five FY2Pb2 tetrahedra. In the twenty-seventh F1- site, F1- is bonded to two Y3+ and two Pb2+ atoms to form distorted FY2Pb2 tetrahedra that share corners with ten FYPb3F tetrahedra and edges with four FYPb3 tetrahedra. In the twenty-eighth F1- site, F1- is bonded to one Y3+, three Pb2+, and one F1- atom to form distorted FYPb3F tetrahedra that share corners with nine FYPb3 tetrahedra, edges with five FY2Pb2 tetrahedra, and faces with three FYPb3F tetrahedra. In the twenty-ninth F1- site, F1- is bonded in a 2-coordinate geometry to two Y3+ and two Pb2+ atoms. In the thirtieth F1- site, F1- is bonded to one Y3+, three Pb2+, and one F1- atom to form distorted FYPb3F tetrahedra that share corners with nine FYPb3 tetrahedra, edges with five FYPb3F tetrahedra, and faces with three FYPb3F tetrahedra. In the thirty-first F1- site, F1- is bonded to one Y3+ and three Pb2+ atoms to form distorted FYPb3 tetrahedra that share corners with eleven FYPb3 tetrahedra and edges with five FYPb3F tetrahedra. In the thirty-second F1- site, F1- is bonded to two Y3+ and two Pb2+ atoms to form a mixture of distorted edge and corner-sharing FY2Pb2 tetrahedra. In the thirty-third F1- site, F1- is bonded to four Pb2+ and one F1- atom to form FPb4F tetrahedra that share corners with ten FYPb3 tetrahedra, edges with six FYPb3F tetrahedra, and faces with three FYPb3F tetrahedra. In the thirty-fourth F1- site, F1- is bonded to one Y3+ and three Pb2+ atoms to form distorted FYPb3 tetrahedra that share corners with eleven FYPb3F tetrahedra and edges with five FY2Pb2 tetrahedra.

36 MATERIALS SCIENCE↗