Rb5Al(MoO4)4 crystallizes in the triclinic P1 space group. There are five inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 1-coordinate geometry to one O(7) and two equivalent O(11) atoms. In the second Rb site, Rb(2) is bonded in a 10-coordinate geometry to one O(10), one O(13), one O(14), one O(16), one O(2), one O(3), one O(8), one O(9), and two equivalent O(12) atoms. In the third Rb site, Rb(3) is bonded in a 8-coordinate geometry to one O(12), one O(13), one O(16), one O(2), one O(5), one O(9), and two equivalent O(3) atoms. In the fourth Rb site, Rb(4) is bonded in a 10-coordinate geometry to one O(1), one O(10), one O(11), one O(14), one O(15), one O(16), one O(2), one O(6), and two equivalent O(4) atoms. In the fifth Rb site, Rb(5) is bonded in a 6-coordinate geometry to one O(10), one O(11), one O(14), one O(16), one O(2), and one O(3) atom. There are four inequivalent Mo sites. In the first Mo site, Mo(1) is bonded in a tetrahedral geometry to one O(11), one O(13), one O(6), and one O(9) atom. In the second Mo site, Mo(2) is bonded in a tetrahedral geometry to one O(10), one O(12), one O(14), and one O(5) atom. In the third Mo site, Mo(3) is bonded in a tetrahedral geometry to one O(1), one O(15), one O(3), and one O(8) atom. In the fourth Mo site, Mo(4) is bonded in a tetrahedral geometry to one O(16), one O(2), one O(4), and one O(7) atom. Al(1) is bonded in a trigonal planar geometry to one O(1), one O(15), and one O(4) atom. There are sixteen inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one Rb(4), one Mo(3), and one Al(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one Rb(2), one Rb(3), one Rb(4), one Rb(5), and one Mo(4) atom. In the third O site, O(3) is bonded in a single-bond geometry to one Rb(2), one Rb(5), two equivalent Rb(3), and one Mo(3) atom. In the fourth O site, O(4) is bonded in a distorted bent 150 degrees geometry to two equivalent Rb(4), one Mo(4), and one Al(1) atom. In the fifth O site, O(5) is bonded in a distorted linear geometry to one Rb(3) and one Mo(2) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to one Rb(4) and one Mo(1) atom. In the seventh O site, O(7) is bonded in a 2-coordinate geometry to one Rb(1) and one Mo(4) atom. In the eighth O site, O(8) is bonded in a 2-coordinate geometry to one Rb(2) and one Mo(3) atom. In the ninth O site, O(9) is bonded in a distorted single-bond geometry to one Rb(2), one Rb(3), and one Mo(1) atom. In the tenth O site, O(10) is bonded in a 1-coordinate geometry to one Rb(2), one Rb(4), one Rb(5), and one Mo(2) atom. In the eleventh O site, O(11) is bonded in a distorted single-bond geometry to one Rb(4), one Rb(5), two equivalent Rb(1), and one Mo(1) atom. In the twelfth O site, O(12) is bonded in a 4-coordinate geometry to one Rb(3), two equivalent Rb(2), and one Mo(2) atom. In the thirteenth O site, O(13) is bonded in a distorted single-bond geometry to one Rb(2), one Rb(3), and one Mo(1) atom. In the fourteenth O site, O(14) is bonded in a 1-coordinate geometry to one Rb(2), one Rb(4), one Rb(5), and one Mo(2) atom. In the fifteenth O site, O(15) is bonded in a bent 150 degrees geometry to one Rb(4), one Mo(3), and one Al(1) atom. In the sixteenth O site, O(16) is bonded in a distorted single-bond geometry to one Rb(2), one Rb(3), one Rb(4), one Rb(5), and one Mo(4) atom.
Rb5Al(MoO4)4 crystallizes in the triclinic P1 space group. There are five inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 1-coordinate geometry to one O(7) and two equivalent O(11) atoms. The Rb(1)-O(7) bond length is 2.61 Å. There is one shorter (3.11 Å) and one longer (3.14 Å) Rb(1)-O(11) bond length. In the second Rb site, Rb(2) is bonded in a 10-coordinate geometry to one O(10), one O(13), one O(14), one O(16), one O(2), one O(3), one O(8), one O(9), and two equivalent O(12) atoms. The Rb(2)-O(10) bond length is 3.26 Å. The Rb(2)-O(13) bond length is 3.20 Å. The Rb(2)-O(14) bond length is 3.27 Å. The Rb(2)-O(16) bond length is 3.06 Å. The Rb(2)-O(2) bond length is 3.06 Å. The Rb(2)-O(3) bond length is 3.28 Å. The Rb(2)-O(8) bond length is 2.78 Å. The Rb(2)-O(9) bond length is 3.22 Å. There is one shorter (3.18 Å) and one longer (3.20 Å) Rb(2)-O(12) bond length. In the third Rb site, Rb(3) is bonded in a 8-coordinate geometry to one O(12), one O(13), one O(16), one O(2), one O(5), one O(9), and two equivalent O(3) atoms. The Rb(3)-O(12) bond length is 2.81 Å. The Rb(3)-O(13) bond length is 2.87 Å. The Rb(3)-O(16) bond length is 3.27 Å. The Rb(3)-O(2) bond length is 3.28 Å. The Rb(3)-O(5) bond length is 3.01 Å. The Rb(3)-O(9) bond length is 2.89 Å. There is one shorter (3.30 Å) and one longer (3.32 Å) Rb(3)-O(3) bond length. In the fourth Rb site, Rb(4) is bonded in a 10-coordinate geometry to one O(1), one O(10), one O(11), one O(14), one O(15), one O(16), one O(2), one O(6), and two equivalent O(4) atoms. The Rb(4)-O(1) bond length is 3.54 Å. The Rb(4)-O(10) bond length is 2.83 Å. The Rb(4)-O(11) bond length is 2.98 Å. The Rb(4)-O(14) bond length is 2.83 Å. The Rb(4)-O(15) bond length is 3.53 Å. The Rb(4)-O(16) bond length is 3.06 Å. The Rb(4)-O(2) bond length is 3.06 Å. The Rb(4)-O(6) bond length is 3.20 Å. There is one shorter (3.37 Å) and one longer (3.38 Å) Rb(4)-O(4) bond length. In the fifth Rb site, Rb(5) is bonded in a 6-coordinate geometry to one O(10), one O(11), one O(14), one O(16), one O(2), and one O(3) atom. The Rb(5)-O(10) bond length is 2.86 Å. The Rb(5)-O(11) bond length is 2.91 Å. The Rb(5)-O(14) bond length is 2.86 Å. The Rb(5)-O(16) bond length is 3.12 Å. The Rb(5)-O(2) bond length is 3.11 Å. The Rb(5)-O(3) bond length is 3.30 Å. There are four inequivalent Mo sites. In the first Mo site, Mo(1) is bonded in a tetrahedral geometry to one O(11), one O(13), one O(6), and one O(9) atom. The Mo(1)-O(11) bond length is 1.81 Å. The Mo(1)-O(13) bond length is 1.79 Å. The Mo(1)-O(6) bond length is 1.81 Å. The Mo(1)-O(9) bond length is 1.79 Å. In the second Mo site, Mo(2) is bonded in a tetrahedral geometry to one O(10), one O(12), one O(14), and one O(5) atom. The Mo(2)-O(10) bond length is 1.81 Å. The Mo(2)-O(12) bond length is 1.79 Å. The Mo(2)-O(14) bond length is 1.81 Å. The Mo(2)-O(5) bond length is 1.80 Å. In the third Mo site, Mo(3) is bonded in a tetrahedral geometry to one O(1), one O(15), one O(3), and one O(8) atom. The Mo(3)-O(1) bond length is 1.90 Å. The Mo(3)-O(15) bond length is 1.90 Å. The Mo(3)-O(3) bond length is 1.73 Å. The Mo(3)-O(8) bond length is 1.71 Å. In the fourth Mo site, Mo(4) is bonded in a tetrahedral geometry to one O(16), one O(2), one O(4), and one O(7) atom. The Mo(4)-O(16) bond length is 1.77 Å. The Mo(4)-O(2) bond length is 1.77 Å. The Mo(4)-O(4) bond length is 1.94 Å. The Mo(4)-O(7) bond length is 1.75 Å. Al(1) is bonded in a trigonal planar geometry to one O(1), one O(15), and one O(4) atom. The Al(1)-O(1) bond length is 1.72 Å. The Al(1)-O(15) bond length is 1.72 Å. The Al(1)-O(4) bond length is 1.70 Å. There are sixteen inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one Rb(4), one Mo(3), and one Al(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one Rb(2), one Rb(3), one Rb(4), one Rb(5), and one Mo(4) atom. In the third O site, O(3) is bonded in a single-bond geometry to one Rb(2), one Rb(5), two equivalent Rb(3), and one Mo(3) atom. In the fourth O site, O(4) is bonded in a distorted bent 150 degrees geometry to two equivalent Rb(4), one Mo(4), and one Al(1) atom. In the fifth O site, O(5) is bonded in a distorted linear geometry to one Rb(3) and one Mo(2) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to one Rb(4) and one Mo(1) atom. In the seventh O site, O(7) is bonded in a 2-coordinate geometry to one Rb(1) and one Mo(4) atom. In the eighth O site, O(8) is bonded in a 2-coordinate geometry to one Rb(2) and one Mo(3) atom. In the ninth O site, O(9) is bonded in a distorted single-bond geometry to one Rb(2), one Rb(3), and one Mo(1) atom. In the tenth O site, O(10) is bonded in a 1-coordinate geometry to one Rb(2), one Rb(4), one Rb(5), and one Mo(2) atom. In the eleventh O site, O(11) is bonded in a distorted single-bond geometry to one Rb(4), one Rb(5), two equivalent Rb(1), and one Mo(1) atom. In the twelfth O site, O(12) is bonded in a 4-coordinate geometry to one Rb(3), two equivalent Rb(2), and one Mo(2) atom. In the thirteenth O site, O(13) is bonded in a distorted single-bond geometry to one Rb(2), one Rb(3), and one Mo(1) atom. In the fourteenth O site, O(14) is bonded in a 1-coordinate geometry to one Rb(2), one Rb(4), one Rb(5), and one Mo(2) atom. In the fifteenth O site, O(15) is bonded in a bent 150 degrees geometry to one Rb(4), one Mo(3), and one Al(1) atom. In the sixteenth O site, O(16) is bonded in a distorted single-bond geometry to one Rb(2), one Rb(3), one Rb(4), one Rb(5), and one Mo(4) atom.