Materials Data on AlSeS2N2Cl5 by Materials Project

Abstract

AlCl4N2SeS2Cl crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of four AlCl4 clusters and four N2SeS2Cl clusters. In each AlCl4 cluster, Al3+ is bonded in a tetrahedral geometry to four Cl1- atoms. There are a spread of Al–Cl bond distances ranging from 2.14–2.19 Å. There are four inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a single-bond geometry to one Al3+ atom. In the second Cl1- site, Cl1- is bonded in a single-bond geometry to one Al3+ atom. In the third Cl1- site, Cl1- is bonded in a single-bond geometry to one Al3+ atom. In the fourth Cl1- site, Cl1- is bonded in a single-bond geometry to one Al3+ atom. In each N2SeS2Cl cluster, there are two inequivalent N4+ sites. In the first N4+ site, N4+ is bonded in a bent 120 degrees geometry to one Se2- and one S2- atom. The N–Se bond length is 1.78 Å. The N–S bond length is 1.59 Å. In the second N4+ site, N4+ is bonded in a bent 120 degrees geometry to two S2- atoms. There is one shorter (1.57 Å) and one longer (1.60 Å) N–S bond length. Se2- is bonded in a 2-coordinate geometry to one N4+ and one Cl1- atom. The Se–Cl bond length is 2.25 Å. There are two inequivalent S2- sites. In the first S2- site, S2- is bonded in a water-like geometry to two N4+ atoms. In the second S2- site, S2- is bonded in a distorted single-bond geometry to one N4+ atom. Cl1- is bonded in a single-bond geometry to one Se2- atom.