ReCo3B4 is delta Molybdenum Boride-derived structured and crystallizes in the monoclinic Pm space group. Re(1) is bonded in a 7-coordinate geometry to one B(2), two equivalent B(1), two equivalent B(3), and two equivalent B(4) atoms. There are three inequivalent Co sites. In the first Co site, Co(1) is bonded in a 7-coordinate geometry to one B(1), two equivalent B(2), two equivalent B(3), and two equivalent B(4) atoms. In the second Co site, Co(2) is bonded in a 7-coordinate geometry to one B(4), two equivalent B(1), two equivalent B(2), and two equivalent B(3) atoms. In the third Co site, Co(3) is bonded in a 7-coordinate geometry to one B(3), two equivalent B(1), two equivalent B(2), and two equivalent B(4) atoms. There are four inequivalent B sites. In the first B site, B(1) is bonded in a 9-coordinate geometry to two equivalent Re(1), one Co(1), two equivalent Co(2), two equivalent Co(3), and two equivalent B(3) atoms. In the second B site, B(2) is bonded in a 9-coordinate geometry to one Re(1), two equivalent Co(1), two equivalent Co(2), two equivalent Co(3), and two equivalent B(4) atoms. In the third B site, B(3) is bonded in a 9-coordinate geometry to two equivalent Re(1), one Co(3), two equivalent Co(1), two equivalent Co(2), and two equivalent B(1) atoms. In the fourth B site, B(4) is bonded in a 9-coordinate geometry to two equivalent Re(1), one Co(2), two equivalent Co(1), two equivalent Co(3), and two equivalent B(2) atoms.
ReCo3B4 is delta Molybdenum Boride-derived structured and crystallizes in the monoclinic Pm space group. Re(1) is bonded in a 7-coordinate geometry to one B(2), two equivalent B(1), two equivalent B(3), and two equivalent B(4) atoms. The Re(1)-B(2) bond length is 2.28 Å. There is one shorter (2.22 Å) and one longer (2.25 Å) Re(1)-B(1) bond length. Both Re(1)-B(3) bond lengths are 2.27 Å. Both Re(1)-B(4) bond lengths are 2.25 Å. There are three inequivalent Co sites. In the first Co site, Co(1) is bonded in a 7-coordinate geometry to one B(1), two equivalent B(2), two equivalent B(3), and two equivalent B(4) atoms. The Co(1)-B(1) bond length is 2.14 Å. There is one shorter (2.17 Å) and one longer (2.18 Å) Co(1)-B(2) bond length. Both Co(1)-B(3) bond lengths are 2.13 Å. Both Co(1)-B(4) bond lengths are 2.11 Å. In the second Co site, Co(2) is bonded in a 7-coordinate geometry to one B(4), two equivalent B(1), two equivalent B(2), and two equivalent B(3) atoms. The Co(2)-B(4) bond length is 2.07 Å. Both Co(2)-B(1) bond lengths are 2.13 Å. Both Co(2)-B(2) bond lengths are 2.13 Å. There is one shorter (2.09 Å) and one longer (2.28 Å) Co(2)-B(3) bond length. In the third Co site, Co(3) is bonded in a 7-coordinate geometry to one B(3), two equivalent B(1), two equivalent B(2), and two equivalent B(4) atoms. The Co(3)-B(3) bond length is 2.22 Å. Both Co(3)-B(1) bond lengths are 2.25 Å. Both Co(3)-B(2) bond lengths are 2.15 Å. There is one shorter (2.13 Å) and one longer (2.34 Å) Co(3)-B(4) bond length. There are four inequivalent B sites. In the first B site, B(1) is bonded in a 9-coordinate geometry to two equivalent Re(1), one Co(1), two equivalent Co(2), two equivalent Co(3), and two equivalent B(3) atoms. Both B(1)-B(3) bond lengths are 1.82 Å. In the second B site, B(2) is bonded in a 9-coordinate geometry to one Re(1), two equivalent Co(1), two equivalent Co(2), two equivalent Co(3), and two equivalent B(4) atoms. Both B(2)-B(4) bond lengths are 1.84 Å. In the third B site, B(3) is bonded in a 9-coordinate geometry to two equivalent Re(1), one Co(3), two equivalent Co(1), two equivalent Co(2), and two equivalent B(1) atoms. In the fourth B site, B(4) is bonded in a 9-coordinate geometry to two equivalent Re(1), one Co(2), two equivalent Co(1), two equivalent Co(3), and two equivalent B(2) atoms.