Materials Data on K2CuH4(Cl2O)2 by Materials Project
K2CuH4(OCl2)2 crystallizes in the tetragonal P4_2/mnm space group. The structure is three-dimensional. K1+ is bonded in a body-centered cubic geometry to eight Cl1- atoms. All K–Cl bond lengths are 3.32 Å. Cu2+ is bonded in a distorted octahedral geometry to two equivalent O2- and four Cl1- atoms. Both Cu–O bond lengths are 1.96 Å. There are two shorter (2.31 Å) and two longer (2.96 Å) Cu–Cl bond lengths. H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.99 Å. O2- is bonded in a distorted trigonal planar geometry to one Cu2+ and two equivalent H1+ atoms. There are two inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a distorted single-bond geometry to four equivalent K1+ and one Cu2+ atom. In the second Cl1- site, Cl1- is bonded in a 7-coordinate geometry to four equivalent K1+ and one Cu2+ atom.