Materials Data on La2Re3B7 by Materials Project
La2Re3B7 is Magnesium tetraboride-derived structured and crystallizes in the orthorhombic Pcca space group. The structure is three-dimensional. La3+ is bonded in a 12-coordinate geometry to twelve B+2.14- atoms. There are a spread of La–B bond distances ranging from 2.77–3.37 Å. There are two inequivalent Re3+ sites. In the first Re3+ site, Re3+ is bonded in a 6-coordinate geometry to six B+2.14- atoms. There are a spread of Re–B bond distances ranging from 2.11–2.30 Å. In the second Re3+ site, Re3+ is bonded in a 8-coordinate geometry to eight B+2.14- atoms. There are a spread of Re–B bond distances ranging from 2.22–2.31 Å. There are four inequivalent B+2.14- sites. In the first B+2.14- site, B+2.14- is bonded in a 9-coordinate geometry to four equivalent La3+, two Re3+, and three B+2.14- atoms. There are a spread of B–B bond distances ranging from 1.68–1.86 Å. In the second B+2.14- site, B+2.14- is bonded in a 3-coordinate geometry to three equivalent La3+, three Re3+, and three B+2.14- atoms. There is one shorter (1.78 Å) and one longer (1.80 Å) B–B bond length. In the third B+2.14- site, B+2.14- is bonded in a 8-coordinate geometry to four equivalent La3+, two equivalent Re3+, and two equivalent B+2.14- atoms. In the fourth B+2.14- site, B+2.14- is bonded in a 8-coordinate geometry to three equivalent La3+, four Re3+, and one B+2.14- atom.