Materials Data on DyAsS by Materials Project
DyAsS is Matlockite structured and crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. Dy3+ is bonded in a 5-coordinate geometry to four equivalent As1- and five equivalent S2- atoms. There are a spread of Dy–As bond distances ranging from 3.10–3.17 Å. There are a spread of Dy–S bond distances ranging from 2.80–2.85 Å. As1- is bonded in a 8-coordinate geometry to four equivalent Dy3+ and four equivalent As1- atoms. There are a spread of As–As bond distances ranging from 2.55–2.90 Å. S2- is bonded to five equivalent Dy3+ atoms to form a mixture of distorted corner and edge-sharing SDy5 trigonal bipyramids.
36 MATERIALS SCIENCE↗