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Flux Crystal Growth, Crystal Structure, and Magnetic Properties of a Ternary Chromium Disulfide Ba9Cr4S19 with Unusual Cr4S15 Tetramer Units
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| Title: | Flux Crystal Growth, Crystal Structure, and Magnetic Properties of a Ternary Chromium Disulfide Ba9Cr4S19 with Unusual Cr4S15 Tetramer Units |
| Authors: | Yan, Hong Browse this author | | Matsushita, Yoshitaka Browse this author | | Chikamatsu, Akira Browse this author | | Hasegawa, Tetsuya Browse this author | | Yamaura, Kazunari Browse this author | | Tsujimoto, Yoshihiro Browse this author |
| Keywords: | Disulfides | | Chromium | | Sulfides | | Crystal structure | | Ions |
| Issue Date: | 16-Mar-2021 |
| Publisher: | American Chemical Society |
| Journal Title: | ACS Omega |
| Volume: | 6 |
| Issue: | 10 |
| Start Page: | 6842 |
| End Page: | 6847 |
| Publisher DOI: | 10.1021/acsomega.0c06017 |
| Abstract: | A new ternary chromium disulfide, Ba9Cr4S19, has been grown out of BaCWl(2) molten salt. Single-crystal structure analysis revealed that it crystallizes in the centrosymmetric space group C2/c with lattice parameters: a = 12.795(3) angstrom, b = 11.3269(2) angstrom, c = 23.2057(6) angstrom, beta = 104.041(3)degrees, and Z = 4. Ba9Cr4S19 comprises four face-sharing Cr-centered octahedra with disulfide ions occupying sites on each terminal face. The resulting Cr4S15 tetramer units are isolated by nonmagnetic Ba-centered polyhedra in the ab plane and barium disulfide (=Ba-4(S-2)(2)) layers along the c-axis. Following the structure analysis, the title compound should be expressed as [Ba2+](9)[Cr3+](4)[(S-2)(2-)](4)[S2-](11), which is also consistent with Cr2p X-ray photoemission spectra showing trivalent states of the Cr atoms. The unique Cr-based zero-dimensional structure with the formation of these disulfide ions can be achieved for the first time in ternary chromium sulfides, which adopt 1-3 dimensional frameworks of Cr-centered polyhedra. |
| Rights: | https://creativecommons.org/licenses/by-nc-nd/4.0/ |
| Type: | article |
| URI: | http://hdl.handle.net/2115/81252 |
| Appears in Collections: | 総合化学院 (Graduate School of Chemical Sciences and Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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