Materials Data on NaBH34(C3N)4 by Materials Project
NaBH34(C3N)4 is alpha-like structured and crystallizes in the hexagonal P6_3 space group. The structure is zero-dimensional and consists of two NaBH34(C3N)4 clusters. Na1+ is bonded in a 7-coordinate geometry to four N3- and three equivalent H1+ atoms. There are three shorter (2.62 Å) and one longer (2.66 Å) Na–N bond lengths. All Na–H bond lengths are 2.52 Å. B3+ is bonded in a tetrahedral geometry to four H1+ atoms. There is one shorter (1.23 Å) and three longer (1.24 Å) B–H bond length. There are four inequivalent C+2.17- sites. In the first C+2.17- site, C+2.17- is bonded to one N3- and three H1+ atoms to form corner-sharing CH3N tetrahedra. The C–N bond length is 1.47 Å. There is two shorter (1.10 Å) and one longer (1.11 Å) C–H bond length. In the second C+2.17- site, C+2.17- is bonded in a distorted trigonal non-coplanar geometry to one N3- and two H1+ atoms. The C–N bond length is 1.47 Å. There is one shorter (1.10 Å) and one longer (1.11 Å) C–H bond length. In the third C+2.17- site, C+2.17- is bonded in a distorted trigonal non-coplanar geometry to one N3- and two H1+ atoms. The C–N bond length is 1.47 Å. There is one shorter (1.10 Å) and one longer (1.11 Å) C–H bond length. In the fourth C+2.17- site, C+2.17- is bonded to one N3- and three H1+ atoms to form corner-sharing CH3N tetrahedra. The C–N bond length is 1.46 Å. There is two shorter (1.10 Å) and one longer (1.11 Å) C–H bond length. There are two inequivalent N3- sites. In the first N3- site, N3- is bonded to one Na1+ and three C+2.17- atoms to form distorted corner-sharing NNaC3 tetrahedra. In the second N3- site, N3- is bonded to one Na1+ and three equivalent C+2.17- atoms to form distorted corner-sharing NNaC3 tetrahedra. There are twelve inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one B3+ atom. In the second H1+ site, H1+ is bonded in a single-bond geometry to one C+2.17- atom. In the third H1+ site, H1+ is bonded in a single-bond geometry to one C+2.17- atom. In the fourth H1+ site, H1+ is bonded in a distorted single-bond geometry to one Na1+ and one B3+ atom. In the fifth H1+ site, H1+ is bonded in a single-bond geometry to one C+2.17- atom. In the sixth H1+ site, H1+ is bonded in a single-bond geometry to one C+2.17- atom. In the seventh H1+ site, H1+ is bonded in a single-bond geometry to one C+2.17- atom. In the eighth H1+ site, H1+ is bonded in a single-bond geometry to one C+2.17- atom. In the ninth H1+ site, H1+ is bonded in a single-bond geometry to one C+2.17- atom. In the tenth H1+ site, H1+ is bonded in a single-bond geometry to one C+2.17- atom. In the eleventh H1+ site, H1+ is bonded in a single-bond geometry to one C+2.17- atom. In the twelfth H1+ site, H1+ is bonded in a single-bond geometry to one C+2.17- atom.