K2ReOCl5 crystallizes in the orthorhombic Pnma space group. K(1) is bonded in a 10-coordinate geometry to two equivalent Cl(2), two equivalent Cl(3), two equivalent Cl(4), and four equivalent Cl(1) atoms. Re(1) is bonded in a distorted octahedral geometry to one O(1), one Cl(2), one Cl(3), one Cl(4), and two equivalent Cl(1) atoms. O(1) is bonded in a single-bond geometry to one Re(1) atom. There are four inequivalent Cl sites. In the first Cl site, Cl(1) is bonded in a 5-coordinate geometry to four equivalent K(1) and one Re(1) atom. In the second Cl site, Cl(2) is bonded in a 5-coordinate geometry to four equivalent K(1) and one Re(1) atom. In the third Cl site, Cl(3) is bonded to four equivalent K(1) and one Re(1) atom to form a mixture of distorted edge, face, and corner-sharing ClK4Re square pyramids. In the fourth Cl site, Cl(4) is bonded to four equivalent K(1) and one Re(1) atom to form a mixture of distorted edge, face, and corner-sharing ClK4Re square pyramids.
K2ReOCl5 crystallizes in the orthorhombic Pnma space group. K(1) is bonded in a 10-coordinate geometry to two equivalent Cl(2), two equivalent Cl(3), two equivalent Cl(4), and four equivalent Cl(1) atoms. There is one shorter (3.30 Å) and one longer (3.59 Å) K(1)-Cl(2) bond length. There is one shorter (3.35 Å) and one longer (3.51 Å) K(1)-Cl(3) bond length. There is one shorter (3.36 Å) and one longer (3.48 Å) K(1)-Cl(4) bond length. There are a spread of K(1)-Cl(1) bond distances ranging from 3.38-3.62 Å. Re(1) is bonded in a distorted octahedral geometry to one O(1), one Cl(2), one Cl(3), one Cl(4), and two equivalent Cl(1) atoms. The Re(1)-O(1) bond length is 1.70 Å. The Re(1)-Cl(2) bond length is 2.39 Å. The Re(1)-Cl(3) bond length is 2.53 Å. The Re(1)-Cl(4) bond length is 2.40 Å. Both Re(1)-Cl(1) bond lengths are 2.40 Å. O(1) is bonded in a single-bond geometry to one Re(1) atom. There are four inequivalent Cl sites. In the first Cl site, Cl(1) is bonded in a 5-coordinate geometry to four equivalent K(1) and one Re(1) atom. In the second Cl site, Cl(2) is bonded in a 5-coordinate geometry to four equivalent K(1) and one Re(1) atom. In the third Cl site, Cl(3) is bonded to four equivalent K(1) and one Re(1) atom to form a mixture of distorted edge, face, and corner-sharing ClK4Re square pyramids. In the fourth Cl site, Cl(4) is bonded to four equivalent K(1) and one Re(1) atom to form a mixture of distorted edge, face, and corner-sharing ClK4Re square pyramids.