biostudies-literatureYan HMinistry of Defense- JapanJapan Society for the Promotion of Science6842-6847https://www.ebi.ac.uk/biostudies/studies/S-EPMC7970544biostudies-literatureUnknown6(10)A new ternary chromium disulfide, Ba₉Cr₄S₁₉, has been grown out of BaCl₂ molten salt. Single-crystal structure analysis revealed that it crystallizes in the centrosymmetric space group <i><i>C</i></i> 2/<i>c</i> with lattice parameters: <i>a</i> = 12.795(3) Å, <i>b</i> = 11.3269(2) Å, <i>c</i> = 23.2057(6) Å, β = 104.041(3)°, and <i>Z</i> = 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 <i>ab</i> plane and barium disulfide (=Ba₄(S₂)₂) layers along the <i>c</i>-axis. Following the structure analysis, the title compound should be expressed as [Ba²⁺]₉[Cr³⁺]₄[(S₂)^2-]₄[S^2-]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.ACS omegaFlux Crystal Growth, Crystal Structure, and Magnetic Properties of a Ternary Chromium Disulfide Ba₉Cr₄S₁₉ with Unusual Cr₄S₁₅ Tetramer Units.PMC797054415H0202420H0527616H0643816H0643919H04711JPJ00459619H0259416H06441Chikamatsu AHasegawa TTsujimoto YYamaura KYan HMatsushita YfalseFlux Crystal Growth, Crystal Structure, and Magnetic Properties of a Ternary Chromium Disulfide Ba₉Cr₄S₁₉ with Unusual Cr₄S₁₅ Tetramer Units.A new ternary chromium disulfide, Ba₉Cr₄S₁₉, has been grown out of BaCl₂ molten salt. Single-crystal structure analysis revealed that it crystallizes in the centrosymmetric space group <i><i>C</i></i> 2/<i>c</i> with lattice parameters: <i>a</i> = 12.795(3) Å, <i>b</i> = 11.3269(2) Å, <i>c</i> = 23.2057(6) Å, β = 104.041(3)°, and <i>Z</i> = 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 <i>ab</i> plane and barium disulfide (=Ba₄(S₂)₂) layers along the <i>c</i>-axis. Following the structure analysis, the title compound should be expressed as [Ba²⁺]₉[Cr³⁺]₄[(S₂)^2-]₄[S^2-]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.2021-01-01T00:00:00Z2021 Mar2025-04-20T02:27:40.563Z2025-04-20T02:27:40.563ZS-EPMC79705443374859810.1021/acsomega.0c06017