Ba2PtH6 crystallizes in the orthorhombic Cmce space group. Ba(1) is bonded in a 12-coordinate geometry to four equivalent H(1), four equivalent H(2), and four equivalent H(3) atoms. Pt(1) is bonded in a square co-planar geometry to two equivalent H(2) and two equivalent H(3) atoms. There are three inequivalent H sites. In the first H site, H(1) is bonded to four equivalent Ba(1) atoms to form a mixture of edge and corner-sharing HBa4 tetrahedra. In the second H site, H(2) is bonded in a single-bond geometry to four equivalent Ba(1) and one Pt(1) atom. In the third H site, H(3) is bonded in a distorted single-bond geometry to four equivalent Ba(1) and one Pt(1) atom.
Ba2PtH6 crystallizes in the orthorhombic Cmce space group. Ba(1) is bonded in a 12-coordinate geometry to four equivalent H(1), four equivalent H(2), and four equivalent H(3) atoms. There are two shorter (2.65 Å) and two longer (2.66 Å) Ba(1)-H(1) bond lengths. All Ba(1)-H(2) bond lengths are 3.04 Å. There are two shorter (3.00 Å) and two longer (3.01 Å) Ba(1)-H(3) bond lengths. Pt(1) is bonded in a square co-planar geometry to two equivalent H(2) and two equivalent H(3) atoms. Both Pt(1)-H(2) bond lengths are 1.66 Å. Both Pt(1)-H(3) bond lengths are 1.66 Å. There are three inequivalent H sites. In the first H site, H(1) is bonded to four equivalent Ba(1) atoms to form a mixture of edge and corner-sharing HBa4 tetrahedra. In the second H site, H(2) is bonded in a single-bond geometry to four equivalent Ba(1) and one Pt(1) atom. In the third H site, H(3) is bonded in a distorted single-bond geometry to four equivalent Ba(1) and one Pt(1) atom.