Results for “As-Np-Se”

Materials Data on NpAsSe by Materials Project

NpAsSe is Matlockite structured and crystallizes in the tetragonal P4/nmm space group. The structure is three-dimensional. Np5+ is bonded in a 9-coordinate geometry to four equivalent As3- and five equivalent Se2- atoms. All Np–As bond lengths are 3.06 Å. There are four shorter (2.91 Å) and one longer (3.02 Å) Np–Se bond lengths. As3- is bonded in a 8-coordinate geometry to four equivalent Np5+ and four equivalent As3- atoms. All As–As bond lengths are 2.81 Å. Se2- is bonded to five equivalent Np5+ atoms to form a mixture of distorted edge and corner-sharing SeNp5 trigonal bipyramids.