Materials Data on LaH4C4NO8 by Materials Project

Abstract

La(CO2)4NH4 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional and consists of four ammonium molecules and one La(CO2)4 framework. In the La(CO2)4 framework, La3+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of La–O bond distances ranging from 2.50–2.73 Å. There are four inequivalent C3+ sites. In the first C3+ site, C3+ is bonded in a bent 120 degrees geometry to two O2- atoms. Both C–O bond lengths are 1.27 Å. In the second C3+ site, C3+ is bonded in a bent 120 degrees geometry to two O2- atoms. There is one shorter (1.26 Å) and one longer (1.27 Å) C–O bond length. In the third C3+ site, C3+ is bonded in a bent 120 degrees geometry to two O2- atoms. There is one shorter (1.26 Å) and one longer (1.28 Å) C–O bond length. In the fourth C3+ site, C3+ is bonded in a bent 120 degrees geometry to two O2- atoms. Both C–O bond lengths are 1.27 Å. There are eight inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to one La3+ and one C3+ atom. In the second O2- site, O2- is bonded in a distorted single-bond geometry to one La3+ and one C3+ atom. In the third O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one La3+ and one C3+ atom. In the fourth O2- site, O2- is bonded in a distorted single-bond geometry to one La3+ and one C3+ atom. In the fifth O2- site, O2- is bonded in a distorted single-bond geometry to one La3+ and one C3+ atom. In the sixth O2- site, O2- is bonded in a distorted single-bond geometry to two equivalent La3+ and one C3+ atom. In the seventh O2- site, O2- is bonded in a single-bond geometry to one La3+ and one C3+ atom. In the eighth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one La3+ and one C3+ atom.