AI Article Synopsis
- New binary chromium sulfide (CrS) has been synthetically created through the reaction of CrS and sulfur mixtures at high temperature (800 °C) and pressure (13 GPa).
- CrS features an orthorhombic unit cell and has a unique structure characterized by edge-sharing octahedral dimers of CrS, forming a three-dimensional arrangement.
- The sulfur atoms within CrS are arranged into S disulfide ions, exhibiting specific S-S bond distances, and the CrS structure is related to the crystal structure of marcasite (FeS), but with some vacancies in the metal sites.
Article Abstract
The new binary chromium sulfide CrS has been synthesized by reaction of CrS and sulfur mixtures at 800 °C and 13 GPa. CrS crystallizes in an orthorhombic unit cell with = 4.6742(7) Å, = 5.7315(8) Å, = 10.603(2) Å, and = 284.873(4) Å. It has a novel structure composed of CrS edge-shared octahedral dimers, which share all of their corners to form a three-dimensional structure. All of the sulfur atoms form S disulfide ions with a S-S distance of 2.063(5) or 2.068(8) Å. The structure of CrS is a derivative of the crystal structure of marcasite FeS, in which one in three metal sites of the marcasite structure is vacant in the CrS structure.
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| http://dx.doi.org/10.1021/acs.inorgchem.0c01690 | DOI Listing |
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