Al8Fe2Eu crystallizes in the monoclinic Pm space group. There are four inequivalent Eu sites. In the first Eu site, Eu(1) is bonded in a 13-coordinate geometry to one Al(2), one Al(21), one Al(23), two equivalent Al(13), two equivalent Al(25), two equivalent Al(31), two equivalent Al(5), and two equivalent Al(9) atoms. In the second Eu site, Eu(2) is bonded in a 13-coordinate geometry to one Al(2), one Al(22), one Al(24), two equivalent Al(10), two equivalent Al(14), two equivalent Al(26), two equivalent Al(32), and two equivalent Al(6) atoms. In the third Eu site, Eu(3) is bonded in a 13-coordinate geometry to one Al(1), one Al(21), one Al(23), two equivalent Al(11), two equivalent Al(15), two equivalent Al(27), two equivalent Al(29), and two equivalent Al(7) atoms. In the fourth Eu site, Eu(4) is bonded in a 13-coordinate geometry to one Al(1), one Al(22), one Al(24), two equivalent Al(12), two equivalent Al(16), two equivalent Al(28), two equivalent Al(30), and two equivalent Al(8) atoms. There are eight inequivalent Fe sites. In the first Fe site, Fe(1) is bonded in a 10-coordinate geometry to one Fe(2), one Al(19), one Al(20), one Al(21), two equivalent Al(11), two equivalent Al(13), and two equivalent Al(3) atoms. In the second Fe site, Fe(2) is bonded in a 10-coordinate geometry to one Fe(1), one Al(19), one Al(20), one Al(22), two equivalent Al(12), two equivalent Al(14), and two equivalent Al(3) atoms. In the third Fe site, Fe(3) is bonded in a 10-coordinate geometry to one Fe(4), one Al(17), one Al(18), one Al(23), two equivalent Al(15), two equivalent Al(4), and two equivalent Al(9) atoms. In the fourth Fe site, Fe(4) is bonded in a 10-coordinate geometry to one Fe(3), one Al(17), one Al(18), one Al(24), two equivalent Al(10), two equivalent Al(16), and two equivalent Al(4) atoms. In the fifth Fe site, Fe(5) is bonded in a 9-coordinate geometry to one Al(1), one Al(17), one Al(21), two equivalent Al(28), two equivalent Al(29), and two equivalent Al(5) atoms. In the sixth Fe site, Fe(6) is bonded in a 9-coordinate geometry to one Al(1), one Al(18), one Al(22), two equivalent Al(27), two equivalent Al(30), and two equivalent Al(6) atoms. In the seventh Fe site, Fe(7) is bonded in a 9-coordinate geometry to one Al(19), one Al(2), one Al(23), two equivalent Al(26), two equivalent Al(31), and two equivalent Al(7) atoms. In the eighth Fe site, Fe(8) is bonded in a 9-coordinate geometry to one Al(2), one Al(20), one Al(24), two equivalent Al(25), two equivalent Al(32), and two equivalent Al(8) atoms. There are thirty-two inequivalent Al sites. In the first Al site, Al(1) is bonded in a distorted linear geometry to one Eu(3), one Eu(4), one Fe(5), one Fe(6), two equivalent Al(27), two equivalent Al(28), two equivalent Al(29), and two equivalent Al(30) atoms. In the second Al site, Al(2) is bonded in a distorted linear geometry to one Eu(1), one Eu(2), one Fe(7), one Fe(8), two equivalent Al(25), two equivalent Al(26), two equivalent Al(31), and two equivalent Al(32) atoms. In the third Al site, Al(3) is bonded in a 4-coordinate geometry to two equivalent Fe(1), two equivalent Fe(2), one Al(11), one Al(12), one Al(13), and one Al(14) atom. In the fourth Al site, Al(4) is bonded in a 4-coordinate geometry to two equivalent Fe(3), two equivalent Fe(4), one Al(10), one Al(15), one Al(16), and one Al(9) atom. In the fifth Al site, Al(5) is bonded in a 2-coordinate geometry to two equivalent Eu(1), two equivalent Fe(5), one Al(28), one Al(29), and one Al(9) atom. In the sixth Al site, Al(6) is bonded in a 2-coordinate geometry to two equivalent Eu(2), two equivalent Fe(6), one Al(10), one Al(27), and one Al(30) atom. In the seventh Al site, Al(7) is bonded in a 2-coordinate geometry to two equivalent Eu(3), two equivalent Fe(7), one Al(11), one Al(26), and one Al(31) atom. In the eighth Al site, Al(8) is bonded in a 2-coordinate geometry to two equivalent Eu(4), two equivalent Fe(8), one Al(12), one Al(25), and one Al(32) atom. In the ninth Al site, Al(9) is bonded in a 10-coordinate geometry to two equivalent Eu(1), two equivalent Fe(3), one Al(15), one Al(31), one Al(4), one Al(5), and two equivalent Al(23) atoms. In the tenth Al site, Al(10) is bonded in a 10-coordinate geometry to two equivalent Eu(2), two equivalent Fe(4), one Al(16), one Al(32), one Al(4), one Al(6), and two equivalent Al(24) atoms. In the eleventh Al site, Al(11) is bonded in a 10-coordinate geometry to two equivalent Eu(3), two equivalent Fe(1), one Al(13), one Al(29), one Al(3), one Al(7), and two equivalent Al(21) atoms. In the twelfth Al site, Al(12) is bonded in a 10-coordinate geometry to two equivalent Eu(4), two equivalent Fe(2), one Al(14), one Al(3), one Al(30), one Al(8), and two equivalent Al(22) atoms. In the thirteenth Al site, Al(13) is bonded in a 9-coordinate geometry to two equivalent Eu(1), two equivalent Fe(1), one Al(11), one Al(25), one Al(3), and two equivalent Al(21) atoms. In the fourteenth Al site, Al(14) is bonded in a 9-coordinate geometry to two equivalent Eu(2), two equivalent Fe(2), one Al(12), one Al(26), one Al(3), and two equivalent Al(22) atoms. In the fifteenth Al site, Al(15) is bonded in a 9-coordinate geometry to two equivalent Eu(3), two equivalent Fe(3), one Al(27), one Al(4), one Al(9), and two equivalent Al(23) atoms. In the sixteenth Al site, Al(16) is bonded in a 9-coordinate geometry to two equivalent Eu(4), two equivalent Fe(4), one Al(10), one Al(28), one Al(4), and two equivalent Al(24) atoms. In the seventeenth Al site, Al(17) is bonded in a 3-coordinate geometry to one Fe(3), one Fe(4), one Fe(5), and two equivalent Al(28) atoms. In the eighteenth Al site, Al(18) is bonded in a 3-coordinate geometry to one Fe(3), one Fe(4), one Fe(6), and two equivalent Al(27) atoms. In the nineteenth Al site, Al(19) is bonded in a 3-coordinate geometry to one Fe(1), one Fe(2), one Fe(7), and two equivalent Al(26) atoms. In the twentieth Al site, Al(20) is bonded in a 3-coordinate geometry to one Fe(1), one Fe(2), one Fe(8), and two equivalent Al(25) atoms. In the twenty-first Al site, Al(21) is bonded in a distorted linear geometry to one Eu(1), one Eu(3), one Fe(1), one Fe(5), two equivalent Al(11), two equivalent Al(13), and two equivalent Al(29) atoms. In the twenty-second Al site, Al(22) is bonded in a distorted linear geometry to one Eu(2), one Eu(4), one Fe(2), one Fe(6), two equivalent Al(12), two equivalent Al(14), and two equivalent Al(30) atoms. In the twenty-third Al site, Al(23) is bonded in a distorted linear geometry to one Eu(1), one Eu(3), one Fe(3), one Fe(7), two equivalent Al(15), two equivalent Al(31), and two equivalent Al(9) atoms. In the twenty-fourth Al site, Al(24) is bonded in a distorted linear geometry to one Eu(2), one Eu(4), one Fe(4), one Fe(8), two equivalent Al(10), two equivalent Al(16), and two equivalent Al(32) atoms. In the twenty-fifth Al site, Al(25) is bonded in a 12-coordinate geometry to two equivalent Eu(1), two equivalent Fe(8), one Al(13), one Al(31), one Al(32), one Al(8), two equivalent Al(2), and two equivalent Al(20) atoms. In the twenty-sixth Al site, Al(26) is bonded in a 12-coordinate geometry to two equivalent Eu(2), two equivalent Fe(7), one Al(14), one Al(31), one Al(32), one Al(7), two equivalent Al(19), and two equivalent Al(2) atoms. In the twenty-seventh Al site, Al(27) is bonded in a 12-coordinate geometry to two equivalent Eu(3), two equivalent Fe(6), one Al(15), one Al(29), one Al(30), one Al(6), two equivalent Al(1), and two equivalent Al(18) atoms. In the twenty-eighth Al site, Al(28) is bonded in a 12-coordinate geometry to two equivalent Eu(4), two equivalent Fe(5), one Al(16), one Al(29), one Al(30), one Al(5), two equivalent Al(1), and two equivalent Al(17) atoms. In the twenty-ninth Al site, Al(29) is bonded in a 12-coordinate geometry to two equivalent Eu(3), two equivalent Fe(5), one Al(11), one Al(27), one Al(28), one Al(5), two equivalent Al(1), and two equivalent Al(21) atoms. In the thirtieth Al site, Al(30) is bonded in a 12-coordinate geometry to two equivalent Eu(4), two equivalent Fe(6), one Al(12), one Al(27), one Al(28), one Al(6), two equivalent Al(1), and two equivalent Al(22) atoms. In the thirty-first Al site, Al(31) is bonded in a 12-coordinate geometry to two equivalent Eu(1), two equivalent Fe(7), one Al(25), one Al(26), one Al(7), one Al(9), two equivalent Al(2), and two equivalent Al(23) atoms. In the thirty-second Al site, Al(32) is bonded in a 12-coordinate geometry to two equivalent Eu(2), two equivalent Fe(8), one Al(10), one Al(25), one Al(26), one Al(8), two equivalent Al(2), and two equivalent Al(24) atoms.
Al8Fe2Eu crystallizes in the monoclinic Pm space group. There are four inequivalent Eu sites. In the first Eu site, Eu(1) is bonded in a 13-coordinate geometry to one Al(2), one Al(21), one Al(23), two equivalent Al(13), two equivalent Al(25), two equivalent Al(31), two equivalent Al(5), and two equivalent Al(9) atoms. The Eu(1)-Al(2) bond length is 3.27 Å. The Eu(1)-Al(21) bond length is 3.21 Å. The Eu(1)-Al(23) bond length is 3.32 Å. Both Eu(1)-Al(13) bond lengths are 3.15 Å. Both Eu(1)-Al(25) bond lengths are 3.22 Å. Both Eu(1)-Al(31) bond lengths are 3.14 Å. Both Eu(1)-Al(5) bond lengths are 3.20 Å. Both Eu(1)-Al(9) bond lengths are 3.17 Å. In the second Eu site, Eu(2) is bonded in a 13-coordinate geometry to one Al(2), one Al(22), one Al(24), two equivalent Al(10), two equivalent Al(14), two equivalent Al(26), two equivalent Al(32), and two equivalent Al(6) atoms. The Eu(2)-Al(2) bond length is 3.26 Å. The Eu(2)-Al(22) bond length is 3.20 Å. The Eu(2)-Al(24) bond length is 3.32 Å. Both Eu(2)-Al(10) bond lengths are 3.17 Å. Both Eu(2)-Al(14) bond lengths are 3.14 Å. Both Eu(2)-Al(26) bond lengths are 3.21 Å. Both Eu(2)-Al(32) bond lengths are 3.15 Å. Both Eu(2)-Al(6) bond lengths are 3.20 Å. In the third Eu site, Eu(3) is bonded in a 13-coordinate geometry to one Al(1), one Al(21), one Al(23), two equivalent Al(11), two equivalent Al(15), two equivalent Al(27), two equivalent Al(29), and two equivalent Al(7) atoms. The Eu(3)-Al(1) bond length is 3.27 Å. The Eu(3)-Al(21) bond length is 3.32 Å. The Eu(3)-Al(23) bond length is 3.19 Å. Both Eu(3)-Al(11) bond lengths are 3.17 Å. Both Eu(3)-Al(15) bond lengths are 3.15 Å. Both Eu(3)-Al(27) bond lengths are 3.23 Å. Both Eu(3)-Al(29) bond lengths are 3.14 Å. Both Eu(3)-Al(7) bond lengths are 3.19 Å. In the fourth Eu site, Eu(4) is bonded in a 13-coordinate geometry to one Al(1), one Al(22), one Al(24), two equivalent Al(12), two equivalent Al(16), two equivalent Al(28), two equivalent Al(30), and two equivalent Al(8) atoms. The Eu(4)-Al(1) bond length is 3.27 Å. The Eu(4)-Al(22) bond length is 3.32 Å. The Eu(4)-Al(24) bond length is 3.20 Å. Both Eu(4)-Al(12) bond lengths are 3.17 Å. Both Eu(4)-Al(16) bond lengths are 3.16 Å. Both Eu(4)-Al(28) bond lengths are 3.24 Å. Both Eu(4)-Al(30) bond lengths are 3.15 Å. Both Eu(4)-Al(8) bond lengths are 3.19 Å. There are eight inequivalent Fe sites. In the first Fe site, Fe(1) is bonded in a 10-coordinate geometry to one Fe(2), one Al(19), one Al(20), one Al(21), two equivalent Al(11), two equivalent Al(13), and two equivalent Al(3) atoms. The Fe(1)-Fe(2) bond length is 2.57 Å. The Fe(1)-Al(19) bond length is 2.54 Å. The Fe(1)-Al(20) bond length is 2.54 Å. The Fe(1)-Al(21) bond length is 2.39 Å. Both Fe(1)-Al(11) bond lengths are 2.62 Å. Both Fe(1)-Al(13) bond lengths are 2.60 Å. Both Fe(1)-Al(3) bond lengths are 2.39 Å. In the second Fe site, Fe(2) is bonded in a 10-coordinate geometry to one Fe(1), one Al(19), one Al(20), one Al(22), two equivalent Al(12), two equivalent Al(14), and two equivalent Al(3) atoms. The Fe(2)-Al(19) bond length is 2.54 Å. The Fe(2)-Al(20) bond length is 2.57 Å. The Fe(2)-Al(22) bond length is 2.40 Å. Both Fe(2)-Al(12) bond lengths are 2.63 Å. Both Fe(2)-Al(14) bond lengths are 2.58 Å. Both Fe(2)-Al(3) bond lengths are 2.39 Å. In the third Fe site, Fe(3) is bonded in a 10-coordinate geometry to one Fe(4), one Al(17), one Al(18), one Al(23), two equivalent Al(15), two equivalent Al(4), and two equivalent Al(9) atoms. The Fe(3)-Fe(4) bond length is 2.58 Å. The Fe(3)-Al(17) bond length is 2.55 Å. The Fe(3)-Al(18) bond length is 2.55 Å. The Fe(3)-Al(23) bond length is 2.40 Å. Both Fe(3)-Al(15) bond lengths are 2.60 Å. Both Fe(3)-Al(4) bond lengths are 2.39 Å. Both Fe(3)-Al(9) bond lengths are 2.61 Å. In the fourth Fe site, Fe(4) is bonded in a 10-coordinate geometry to one Fe(3), one Al(17), one Al(18), one Al(24), two equivalent Al(10), two equivalent Al(16), and two equivalent Al(4) atoms. The Fe(4)-Al(17) bond length is 2.52 Å. The Fe(4)-Al(18) bond length is 2.57 Å. The Fe(4)-Al(24) bond length is 2.40 Å. Both Fe(4)-Al(10) bond lengths are 2.63 Å. Both Fe(4)-Al(16) bond lengths are 2.58 Å. Both Fe(4)-Al(4) bond lengths are 2.39 Å. In the fifth Fe site, Fe(5) is bonded in a 9-coordinate geometry to one Al(1), one Al(17), one Al(21), two equivalent Al(28), two equivalent Al(29), and two equivalent Al(5) atoms. The Fe(5)-Al(1) bond length is 2.33 Å. The Fe(5)-Al(17) bond length is 2.40 Å. The Fe(5)-Al(21) bond length is 2.35 Å. Both Fe(5)-Al(28) bond lengths are 2.52 Å. Both Fe(5)-Al(29) bond lengths are 2.57 Å. Both Fe(5)-Al(5) bond lengths are 2.51 Å. In the sixth Fe site, Fe(6) is bonded in a 9-coordinate geometry to one Al(1), one Al(18), one Al(22), two equivalent Al(27), two equivalent Al(30), and two equivalent Al(6) atoms. The Fe(6)-Al(1) bond length is 2.32 Å. The Fe(6)-Al(18) bond length is 2.41 Å. The Fe(6)-Al(22) bond length is 2.34 Å. Both Fe(6)-Al(27) bond lengths are 2.52 Å. Both Fe(6)-Al(30) bond lengths are 2.56 Å. Both Fe(6)-Al(6) bond lengths are 2.51 Å. In the seventh Fe site, Fe(7) is bonded in a 9-coordinate geometry to one Al(19), one Al(2), one Al(23), two equivalent Al(26), two equivalent Al(31), and two equivalent Al(7) atoms. The Fe(7)-Al(19) bond length is 2.41 Å. The Fe(7)-Al(2) bond length is 2.33 Å. The Fe(7)-Al(23) bond length is 2.33 Å. Both Fe(7)-Al(26) bond lengths are 2.53 Å. Both Fe(7)-Al(31) bond lengths are 2.56 Å. Both Fe(7)-Al(7) bond lengths are 2.50 Å. In the eighth Fe site, Fe(8) is bonded in a 9-coordinate geometry to one Al(2), one Al(20), one Al(24), two equivalent Al(25), two equivalent Al(32), and two equivalent Al(8) atoms. The Fe(8)-Al(2) bond length is 2.33 Å. The Fe(8)-Al(20) bond length is 2.41 Å. The Fe(8)-Al(24) bond length is 2.33 Å. Both Fe(8)-Al(25) bond lengths are 2.53 Å. Both Fe(8)-Al(32) bond lengths are 2.57 Å. Both Fe(8)-Al(8) bond lengths are 2.49 Å. There are thirty-two inequivalent Al sites. In the first Al site, Al(1) is bonded in a distorted linear geometry to one Eu(3), one Eu(4), one Fe(5), one Fe(6), two equivalent Al(27), two equivalent Al(28), two equivalent Al(29), and two equivalent Al(30) atoms. Both Al(1)-Al(27) bond lengths are 2.89 Å. Both Al(1)-Al(28) bond lengths are 2.89 Å. Both Al(1)-Al(29) bond lengths are 2.80 Å. Both Al(1)-Al(30) bond lengths are 2.80 Å. In the second Al site, Al(2) is bonded in a distorted linear geometry to one Eu(1), one Eu(2), one Fe(7), one Fe(8), two equivalent Al(25), two equivalent Al(26), two equivalent Al(31), and two equivalent Al(32) atoms. Both Al(2)-Al(25) bond lengths are 2.89 Å. Both Al(2)-Al(26) bond lengths are 2.89 Å. Both Al(2)-Al(31) bond lengths are 2.79 Å. Both Al(2)-Al(32) bond lengths are 2.79 Å. In the third Al site, Al(3) is bonded in a 4-coordinate geometry to two equivalent Fe(1), two equivalent Fe(2), one Al(11), one Al(12), one Al(13), and one Al(14) atom. The Al(3)-Al(11) bond length is 2.62 Å. The Al(3)-Al(12) bond length is 2.62 Å. The Al(3)-Al(13) bond length is 2.61 Å. The Al(3)-Al(14) bond length is 2.61 Å. In the fourth Al site, Al(4) is bonded in a 4-coordinate geometry to two equivalent Fe(3), two equivalent Fe(4), one Al(10), one Al(15), one Al(16), and one Al(9) atom. The Al(4)-Al(10) bond length is 2.63 Å. The Al(4)-Al(15) bond length is 2.61 Å. The Al(4)-Al(16) bond length is 2.62 Å. The Al(4)-Al(9) bond length is 2.63 Å. In the fifth Al site, Al(5) is bonded in a 2-coordinate geometry to two equivalent Eu(1), two equivalent Fe(5), one Al(28), one Al(29), and one Al(9) atom. The Al(5)-Al(28) bond length is 2.68 Å. The Al(5)-Al(29) bond length is 2.63 Å. The Al(5)-Al(9) bond length is 2.73 Å. In the sixth Al site, Al(6) is bonded in a 2-coordinate geometry to two equivalent Eu(2), two equivalent Fe(6), one Al(10), one Al(27), and one Al(30) atom. The Al(6)-Al(10) bond length is 2.72 Å. The Al(6)-Al(27) bond length is 2.68 Å. The Al(6)-Al(30) bond length is 2.63 Å. In the seventh Al site, Al(7) is bonded in a 2-coordinate geometry to two equivalent Eu(3), two equivalent Fe(7), one Al(11), one Al(26), and one Al(31) atom. The Al(7)-Al(11) bond length is 2.73 Å. The Al(7)-Al(26) bond length is 2.68 Å. The Al(7)-Al(31) bond length is 2.63 Å. In the eighth Al site, Al(8) is bonded in a 2-coordinate geometry to two equivalent Eu(4), two equivalent Fe(8), one Al(12), one Al(25), and one Al(32) atom. The Al(8)-Al(12) bond length is 2.73 Å. The Al(8)-Al(25) bond length is 2.67 Å. The Al(8)-Al(32) bond length is 2.63 Å. In the ninth Al site, Al(9) is bonded in a 10-coordinate geometry to two equivalent Eu(1), two equivalent Fe(3), one Al(15), one Al(31), one Al(4), one Al(5), and two equivalent Al(23) atoms. The Al(9)-Al(15) bond length is 2.69 Å. The Al(9)-Al(31) bond length is 2.86 Å. Both Al(9)-Al(23) bond lengths are 2.84 Å. In the tenth Al site, Al(10) is bonded in a 10-coordinate geometry to two equivalent Eu(2), two equivalent Fe(4), one Al(16), one Al(32), one Al(4), one Al(6), and two equivalent Al(24) atoms. The Al(10)-Al(16) bond length is 2.69 Å. The Al(10)-Al(32) bond length is 2.85 Å. Both Al(10)-Al(24) bond lengths are 2.83 Å. In the eleventh Al site, Al(11) is bonded in a 10-coordinate geometry to two equivalent Eu(3), two equivalent Fe(1), one Al(13), one Al(29), one Al(3), one Al(7), and two equivalent Al(21) atoms. The Al(11)-Al(13) bond length is 2.70 Å. The Al(11)-Al(29) bond length is 2.84 Å. Both Al(11)-Al(21) bond lengths are 2.83 Å. In the twelfth Al site, Al(12) is bonded in a 10-coordinate geometry to two equivalent Eu(4), two equivalent Fe(2), one Al(14), one Al(3), one Al(30), one Al(8), and two equivalent Al(22) atoms. The Al(12)-Al(14) bond length is 2.70 Å. The Al(12)-Al(30) bond length is 2.84 Å. Both Al(12)-Al(22) bond lengths are 2.82 Å. In the thirteenth Al site, Al(13) is bonded in a 9-coordinate geometry to two equivalent Eu(1), two equivalent Fe(1), one Al(11), one Al(25), one Al(3), and two equivalent Al(21) atoms. The Al(13)-Al(25) bond length is 2.73 Å. Both Al(13)-Al(21) bond lengths are 2.81 Å. In the fourteenth Al site, Al(14) is bonded in a 9-coordinate geometry to two equivalent Eu(2), two equivalent Fe(2), one Al(12), one Al(26), one Al(3), and two equivalent Al(22) atoms. The Al(14)-Al(26) bond length is 2.73 Å. Both Al(14)-Al(22) bond lengths are 2.81 Å. In the fifteenth Al site, Al(15) is bonded in a 9-coordinate geometry to two equivalent Eu(3), two equivalent Fe(3), one Al(27), one Al(4), one Al(9), and two equivalent Al(23) atoms. The Al(15)-Al(27) bond length is 2.73 Å. Both Al(15)-Al(23) bond lengths are 2.81 Å. In the sixteenth Al site, Al(16) is bonded in a 9-coordinate geometry to two equivalent Eu(4), two equivalent Fe(4), one Al(10), one Al(28), one Al(4), and two equivalent Al(24) atoms. The Al(16)-Al(28) bond length is 2.74 Å. Both Al(16)-Al(24) bond lengths are 2.81 Å. In the seventeenth Al site, Al(17) is bonded in a 3-coordinate geometry to one Fe(3), one Fe(4), one Fe(5), and two equivalent Al(28) atoms. Both Al(17)-Al(28) bond lengths are 2.99 Å. In the eighteenth Al site, Al(18) is bonded in a 3-coordinate geometry to one Fe(3), one Fe(4), one Fe(6), and two equivalent Al(27) atoms. Both Al(18)-Al(27) bond lengths are 2.99 Å. In the nineteenth Al site, Al(19) is bonded in a 3-coordinate geometry to one Fe(1), one Fe(2), one Fe(7), and two equivalent Al(26) atoms. Both Al(19)-Al(26) bond lengths are 2.99 Å. In the twentieth Al site, Al(20) is bonded in a 3-coordinate geometry to one Fe(1), one Fe(2), one Fe(8), and two equivalent Al(25) atoms. Both Al(20)-Al(25) bond lengths are 2.98 Å. In the twenty-first Al site, Al(21) is bonded in a distorted linear geometry to one Eu(1), one Eu(3), one Fe(1), one Fe(5), two equivalent Al(11), two equivalent Al(13), and two equivalent Al(29) atoms. Both Al(21)-Al(29) bond lengths are 2.80 Å. In the twenty-second Al site, Al(22) is bonded in a distorted linear geometry to one Eu(2), one Eu(4), one Fe(2), one Fe(6), two equivalent Al(12), two equivalent Al(14), and two equivalent Al(30) atoms. Both Al(22)-Al(30) bond lengths are 2.79 Å. In the twenty-third Al site, Al(23) is bonded in a distorted linear geometry to one Eu(1), one Eu(3), one Fe(3), one Fe(7), two equivalent Al(15), two equivalent Al(31), and two equivalent Al(9) atoms. Both Al(23)-Al(31) bond lengths are 2.80 Å. In the twenty-fourth Al site, Al(24) is bonded in a distorted linear geometry to one Eu(2), one Eu(4), one Fe(4), one Fe(8), two equivalent Al(10), two equivalent Al(16), and two equivalent Al(32) atoms. Both Al(24)-Al(32) bond lengths are 2.79 Å. In the twenty-fifth Al site, Al(25) is bonded in a 12-coordinate geometry to two equivalent Eu(1), two equivalent Fe(8), one Al(13), one Al(31), one Al(32), one Al(8), two equivalent Al(2), and two equivalent Al(20) atoms. The Al(25)-Al(31) bond length is 3.01 Å. The Al(25)-Al(32) bond length is 2.64 Å. In the twenty-sixth Al site, Al(26) is bonded in a 12-coordinate geometry to two equivalent Eu(2), two equivalent Fe(7), one Al(14), one Al(31), one Al(32), one Al(7), two equivalent Al(19), and two equivalent Al(2) atoms. The Al(26)-Al(31) bond length is 2.63 Å. The Al(26)-Al(32) bond length is 3.00 Å. In the twenty-seventh Al site, Al(27) is bonded in a 12-coordinate geometry to two equivalent Eu(3), two equivalent Fe(6), one Al(15), one Al(29), one Al(30), one Al(6), two equivalent Al(1), and two equivalent Al(18) atoms. The Al(27)-Al(29) bond length is 3.02 Å. The Al(27)-Al(30) bond length is 2.64 Å. In the twenty-eighth Al site, Al(28) is bonded in a 12-coordinate geometry to two equivalent Eu(4), two equivalent Fe(5), one Al(16), one Al(29), one Al(30), one Al(5), two equivalent Al(1), and two equivalent Al(17) atoms. The Al(28)-Al(29) bond length is 2.64 Å. The Al(28)-Al(30) bond length is 3.02 Å. In the twenty-ninth Al site, Al(29) is bonded in a 12-coordinate geometry to two equivalent Eu(3), two equivalent Fe(5), one Al(11), one Al(27), one Al(28), one Al(5), two equivalent Al(1), and two equivalent Al(21) atoms. In the thirtieth Al site, Al(30) is bonded in a 12-coordinate geometry to two equivalent Eu(4), two equivalent Fe(6), one Al(12), one Al(27), one Al(28), one Al(6), two equivalent Al(1), and two equivalent Al(22) atoms. In the thirty-first Al site, Al(31) is bonded in a 12-coordinate geometry to two equivalent Eu(1), two equivalent Fe(7), one Al(25), one Al(26), one Al(7), one Al(9), two equivalent Al(2), and two equivalent Al(23) atoms. In the thirty-second Al site, Al(32) is bonded in a 12-coordinate geometry to two equivalent Eu(2), two equivalent Fe(8), one Al(10), one Al(25), one Al(26), one Al(8), two equivalent Al(2), and two equivalent Al(24) atoms.