CaRhIn2 crystallizes in the orthorhombic Pnma space group. There are two inequivalent Ca sites. In the first Ca site, Ca(1) is bonded in a 13-coordinate geometry to one Rh(2), two equivalent Rh(1), four equivalent In(1), and six equivalent In(2) atoms. In the second Ca site, Ca(2) is bonded in a 13-coordinate geometry to one Rh(1), two equivalent Rh(2), four equivalent In(2), and six equivalent In(1) atoms. There are two inequivalent Rh sites. In the first Rh site, Rh(1) is bonded in a 9-coordinate geometry to one Ca(2), two equivalent Ca(1), two equivalent In(2), and four equivalent In(1) atoms. In the second Rh site, Rh(2) is bonded in a 9-coordinate geometry to one Ca(1), two equivalent Ca(2), two equivalent In(1), and four equivalent In(2) atoms. There are two inequivalent In sites. In the first In site, In(1) is bonded in a 3-coordinate geometry to two equivalent Ca(1), three equivalent Ca(2), one Rh(2), two equivalent Rh(1), and one In(2) atom. In the second In site, In(2) is bonded in a 12-coordinate geometry to two equivalent Ca(2), three equivalent Ca(1), one Rh(1), two equivalent Rh(2), one In(1), and three equivalent In(2) atoms.
CaRhIn2 crystallizes in the orthorhombic Pnma space group. There are two inequivalent Ca sites. In the first Ca site, Ca(1) is bonded in a 13-coordinate geometry to one Rh(2), two equivalent Rh(1), four equivalent In(1), and six equivalent In(2) atoms. The Ca(1)-Rh(2) bond length is 3.07 Å. There is one shorter (3.04 Å) and one longer (3.27 Å) Ca(1)-Rh(1) bond length. There are two shorter (3.37 Å) and two longer (3.54 Å) Ca(1)-In(1) bond lengths. There are a spread of Ca(1)-In(2) bond distances ranging from 3.30-3.43 Å. In the second Ca site, Ca(2) is bonded in a 13-coordinate geometry to one Rh(1), two equivalent Rh(2), four equivalent In(2), and six equivalent In(1) atoms. The Ca(2)-Rh(1) bond length is 3.10 Å. There is one shorter (2.93 Å) and one longer (3.19 Å) Ca(2)-Rh(2) bond length. There are two shorter (3.33 Å) and two longer (3.44 Å) Ca(2)-In(2) bond lengths. There are two shorter (3.35 Å) and four longer (3.47 Å) Ca(2)-In(1) bond lengths. There are two inequivalent Rh sites. In the first Rh site, Rh(1) is bonded in a 9-coordinate geometry to one Ca(2), two equivalent Ca(1), two equivalent In(2), and four equivalent In(1) atoms. Both Rh(1)-In(2) bond lengths are 2.80 Å. There are two shorter (2.72 Å) and two longer (2.74 Å) Rh(1)-In(1) bond lengths. In the second Rh site, Rh(2) is bonded in a 9-coordinate geometry to one Ca(1), two equivalent Ca(2), two equivalent In(1), and four equivalent In(2) atoms. Both Rh(2)-In(1) bond lengths are 2.74 Å. There are two shorter (2.77 Å) and two longer (2.78 Å) Rh(2)-In(2) bond lengths. There are two inequivalent In sites. In the first In site, In(1) is bonded in a 3-coordinate geometry to two equivalent Ca(1), three equivalent Ca(2), one Rh(2), two equivalent Rh(1), and one In(2) atom. The In(1)-In(2) bond length is 3.11 Å. In the second In site, In(2) is bonded in a 12-coordinate geometry to two equivalent Ca(2), three equivalent Ca(1), one Rh(1), two equivalent Rh(2), one In(1), and three equivalent In(2) atoms. There are a spread of In(2)-In(2) bond distances ranging from 3.06-3.28 Å.