Materials Data on Se by Materials Project

Abstract

Se is red selenium structured and crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of eight cyclooctaselenium molecules. there are eight inequivalent Se sites. In the first Se site, Se is bonded in a water-like geometry to two Se atoms. Both Se–Se bond lengths are 2.36 Å. In the second Se site, Se is bonded in a water-like geometry to two Se atoms. Both Se–Se bond lengths are 2.37 Å. In the third Se site, Se is bonded in a water-like geometry to two Se atoms. There are one shorter (2.36 Å) and one longer (2.37 Å) Se–Se bond lengths. In the fourth Se site, Se is bonded in a water-like geometry to two Se atoms. The Se–Se bond length is 2.37 Å. In the fifth Se site, Se is bonded in a water-like geometry to two Se atoms. In the sixth Se site, Se is bonded in a water-like geometry to two Se atoms. In the seventh Se site, Se is bonded in a water-like geometry to two Se atoms. The Se–Se bond length is 2.36 Å. In the eighth Se site, Se is bonded in a water-like geometry to two Se atoms.