Materials Data on MnH6(NCl)2 by Materials Project
MnH6(NCl)2 crystallizes in the monoclinic C2 space group. The structure is one-dimensional and consists of two MnH6(NCl)2 ribbons oriented in the (0, 0, 1) direction. Mn2+ is bonded to two equivalent N3- and four Cl1- atoms to form edge-sharing MnN2Cl4 octahedra. Both Mn–N bond lengths are 2.21 Å. There are two shorter (2.61 Å) and two longer (2.62 Å) Mn–Cl bond lengths. N3- is bonded in a distorted trigonal non-coplanar geometry to one Mn2+ and three H1+ atoms. There is one shorter (1.02 Å) and two longer (1.03 Å) N–H bond length. There are three inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the second H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the third H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. There are two inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in an L-shaped geometry to two equivalent Mn2+ atoms. In the second Cl1- site, Cl1- is bonded in an L-shaped geometry to two equivalent Mn2+ atoms.