Ca2GaSn crystallizes in the orthorhombic Amm2 space group. There are two inequivalent Ca sites. In the first Ca site, Ca(1) is bonded in a 7-coordinate geometry to three equivalent Ga(1) and four equivalent Sn(1) atoms. In the second Ca site, Ca(2) is bonded in a 7-coordinate geometry to four equivalent Ga(1) and three equivalent Sn(1) atoms. Ga(1) is bonded in a 9-coordinate geometry to three equivalent Ca(1), four equivalent Ca(2), and two equivalent Sn(1) atoms. Sn(1) is bonded in a 9-coordinate geometry to three equivalent Ca(2), four equivalent Ca(1), and two equivalent Ga(1) atoms.
Ca2GaSn crystallizes in the orthorhombic Amm2 space group. There are two inequivalent Ca sites. In the first Ca site, Ca(1) is bonded in a 7-coordinate geometry to three equivalent Ga(1) and four equivalent Sn(1) atoms. There is one shorter (3.23 Å) and two longer (3.38 Å) Ca(1)-Ga(1) bond lengths. All Ca(1)-Sn(1) bond lengths are 3.27 Å. In the second Ca site, Ca(2) is bonded in a 7-coordinate geometry to four equivalent Ga(1) and three equivalent Sn(1) atoms. All Ca(2)-Ga(1) bond lengths are 3.26 Å. There is one shorter (3.27 Å) and two longer (3.35 Å) Ca(2)-Sn(1) bond lengths. Ga(1) is bonded in a 9-coordinate geometry to three equivalent Ca(1), four equivalent Ca(2), and two equivalent Sn(1) atoms. Both Ga(1)-Sn(1) bond lengths are 2.80 Å. Sn(1) is bonded in a 9-coordinate geometry to three equivalent Ca(2), four equivalent Ca(1), and two equivalent Ga(1) atoms.