Mn8Zn14Ga27 crystallizes in the trigonal R-3 space group. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in a 10-coordinate geometry to one Zn(1), two equivalent Zn(2), one Ga(2), one Ga(3), one Ga(5), two equivalent Ga(1), and two equivalent Ga(4) atoms. In the second Mn site, Mn(2) is bonded in a 10-coordinate geometry to one Zn(4), three equivalent Zn(1), three equivalent Ga(2), and three equivalent Ga(3) atoms. There are four inequivalent Zn sites. In the first Zn site, Zn(4) is bonded in a 8-coordinate geometry to two equivalent Mn(2) and six equivalent Ga(3) atoms. In the second Zn site, Zn(1) is bonded in a 11-coordinate geometry to one Mn(1), one Mn(2), one Zn(3), two equivalent Zn(1), two equivalent Zn(2), one Ga(4), one Ga(5), and two equivalent Ga(2) atoms. In the third Zn site, Zn(2) is bonded in a 11-coordinate geometry to two equivalent Mn(1), one Zn(3), two equivalent Zn(1), two equivalent Zn(2), one Ga(4), one Ga(5), and two equivalent Ga(1) atoms. In the fourth Zn site, Zn(3) is bonded in a cuboctahedral geometry to six equivalent Zn(1) and six equivalent Zn(2) atoms. There are five inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 9-coordinate geometry to two equivalent Mn(1), two equivalent Zn(2), one Ga(2), one Ga(3), one Ga(5), and two equivalent Ga(4) atoms. In the second Ga site, Ga(2) is bonded in a 9-coordinate geometry to one Mn(1), one Mn(2), two equivalent Zn(1), one Ga(1), one Ga(4), one Ga(5), and two equivalent Ga(3) atoms. In the third Ga site, Ga(3) is bonded in a 8-coordinate geometry to one Mn(1), one Mn(2), one Zn(4), one Ga(1), two equivalent Ga(2), and two equivalent Ga(4) atoms. In the fourth Ga site, Ga(4) is bonded in a 9-coordinate geometry to two equivalent Mn(1), one Zn(1), one Zn(2), one Ga(2), two equivalent Ga(1), and two equivalent Ga(3) atoms. In the fifth Ga site, Ga(5) is bonded in a 10-coordinate geometry to two equivalent Mn(1), two equivalent Zn(1), two equivalent Zn(2), two equivalent Ga(1), and two equivalent Ga(2) atoms.
Mn8Zn14Ga27 crystallizes in the trigonal R-3 space group. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in a 10-coordinate geometry to one Zn(1), two equivalent Zn(2), one Ga(2), one Ga(3), one Ga(5), two equivalent Ga(1), and two equivalent Ga(4) atoms. The Mn(1)-Zn(1) bond length is 2.78 Å. There is one shorter (2.69 Å) and one longer (2.75 Å) Mn(1)-Zn(2) bond length. The Mn(1)-Ga(2) bond length is 2.50 Å. The Mn(1)-Ga(3) bond length is 2.45 Å. The Mn(1)-Ga(5) bond length is 2.49 Å. There is one shorter (2.43 Å) and one longer (2.47 Å) Mn(1)-Ga(1) bond length. There is one shorter (2.45 Å) and one longer (2.50 Å) Mn(1)-Ga(4) bond length. In the second Mn site, Mn(2) is bonded in a 10-coordinate geometry to one Zn(4), three equivalent Zn(1), three equivalent Ga(2), and three equivalent Ga(3) atoms. The Mn(2)-Zn(4) bond length is 2.71 Å. All Mn(2)-Zn(1) bond lengths are 2.81 Å. All Mn(2)-Ga(2) bond lengths are 2.47 Å. All Mn(2)-Ga(3) bond lengths are 2.43 Å. There are four inequivalent Zn sites. In the first Zn site, Zn(4) is bonded in a 8-coordinate geometry to two equivalent Mn(2) and six equivalent Ga(3) atoms. All Zn(4)-Ga(3) bond lengths are 2.73 Å. In the second Zn site, Zn(1) is bonded in a 11-coordinate geometry to one Mn(1), one Mn(2), one Zn(3), two equivalent Zn(1), two equivalent Zn(2), one Ga(4), one Ga(5), and two equivalent Ga(2) atoms. The Zn(1)-Zn(3) bond length is 2.76 Å. Both Zn(1)-Zn(1) bond lengths are 2.74 Å. There is one shorter (2.76 Å) and one longer (2.80 Å) Zn(1)-Zn(2) bond length. The Zn(1)-Ga(4) bond length is 2.81 Å. The Zn(1)-Ga(5) bond length is 2.72 Å. There is one shorter (2.74 Å) and one longer (2.82 Å) Zn(1)-Ga(2) bond length. In the third Zn site, Zn(2) is bonded in a 11-coordinate geometry to two equivalent Mn(1), one Zn(3), two equivalent Zn(1), two equivalent Zn(2), one Ga(4), one Ga(5), and two equivalent Ga(1) atoms. The Zn(2)-Zn(3) bond length is 2.77 Å. Both Zn(2)-Zn(2) bond lengths are 2.77 Å. The Zn(2)-Ga(4) bond length is 2.76 Å. The Zn(2)-Ga(5) bond length is 2.71 Å. There is one shorter (2.81 Å) and one longer (2.83 Å) Zn(2)-Ga(1) bond length. In the fourth Zn site, Zn(3) is bonded in a cuboctahedral geometry to six equivalent Zn(1) and six equivalent Zn(2) atoms. There are five inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 9-coordinate geometry to two equivalent Mn(1), two equivalent Zn(2), one Ga(2), one Ga(3), one Ga(5), and two equivalent Ga(4) atoms. The Ga(1)-Ga(2) bond length is 2.78 Å. The Ga(1)-Ga(3) bond length is 2.78 Å. The Ga(1)-Ga(5) bond length is 2.68 Å. There is one shorter (2.69 Å) and one longer (2.77 Å) Ga(1)-Ga(4) bond length. In the second Ga site, Ga(2) is bonded in a 9-coordinate geometry to one Mn(1), one Mn(2), two equivalent Zn(1), one Ga(1), one Ga(4), one Ga(5), and two equivalent Ga(3) atoms. The Ga(2)-Ga(4) bond length is 2.68 Å. The Ga(2)-Ga(5) bond length is 2.73 Å. There is one shorter (2.73 Å) and one longer (2.88 Å) Ga(2)-Ga(3) bond length. In the third Ga site, Ga(3) is bonded in a 8-coordinate geometry to one Mn(1), one Mn(2), one Zn(4), one Ga(1), two equivalent Ga(2), and two equivalent Ga(4) atoms. There is one shorter (2.71 Å) and one longer (2.81 Å) Ga(3)-Ga(4) bond length. In the fourth Ga site, Ga(4) is bonded in a 9-coordinate geometry to two equivalent Mn(1), one Zn(1), one Zn(2), one Ga(2), two equivalent Ga(1), and two equivalent Ga(3) atoms. In the fifth Ga site, Ga(5) is bonded in a 10-coordinate geometry to two equivalent Mn(1), two equivalent Zn(1), two equivalent Zn(2), two equivalent Ga(1), and two equivalent Ga(2) atoms.