NH4BH4 is Silicon tetrafluoride-derived structured and crystallizes in the orthorhombic Pma2 space group. The structure is zero-dimensional and consists of two ammonium molecules and two BH4 clusters. In each BH4 cluster, B(1) is bonded in a tetrahedral geometry to one H(4), one H(5), and two equivalent H(3) atoms. There are three inequivalent H sites. In the first H site, H(5) is bonded in a single-bond geometry to one B(1) atom. In the second H site, H(3) is bonded in a single-bond geometry to one B(1) atom. In the third H site, H(4) is bonded in a single-bond geometry to one B(1) atom.
NH4BH4 is Silicon tetrafluoride-derived structured and crystallizes in the orthorhombic Pma2 space group. The structure is zero-dimensional and consists of two ammonium molecules and two BH4 clusters. In each BH4 cluster, B(1) is bonded in a tetrahedral geometry to one H(4), one H(5), and two equivalent H(3) atoms. The B(1)-H(4) bond length is 1.23 Å. The B(1)-H(5) bond length is 1.23 Å. Both B(1)-H(3) bond lengths are 1.22 Å. There are three inequivalent H sites. In the first H site, H(5) is bonded in a single-bond geometry to one B(1) atom. In the second H site, H(3) is bonded in a single-bond geometry to one B(1) atom. In the third H site, H(4) is bonded in a single-bond geometry to one B(1) atom.