biostudies-literatureUnknown11(63)Wu JThe new hexagonal perovskite phase of composition Ba₄Sn_1.1Mn_2.9O₁₂ has been synthesized by solid-state reactions at 1673 K. The crystal structure has been investigated using X-ray and neutron diffraction. The hexagonal perovskite structure has an ordered arrangement of Sn and Mn ions on the corner-sharing octahedral centers and the face-sharing octahedral centers respectively. Short Mn-Mn distances have been evidenced in the face-sharing trimer of MnO₆ octahedra. The magnetic susceptibility shows magnetic cluster behavior, with cluster formation temperature ∼220 K. Antiferromagnetic order has been observed at <i>T</i> _N ∼ 6 K. Ba₄Sn_1.1Mn_2.9O₁₂ is a semiconductor with a transport acRSC advances40235-40242https://www.ebi.ac.uk/biostudies/studies/S-EPMC9044838biostudies-literatureMolecule-like cluster magnetism and cationic order in the new hexagonal perovskite Ba₄Sn_1.1Mn_2.9O₁₂.PMC9044838Wu JYin CGuo WWang XKuang XYan XfalseMolecule-like cluster magnetism and cationic order in the new hexagonal perovskite Ba₄Sn_1.1Mn_2.9O₁₂.The new hexagonal perovskite phase of composition Ba₄Sn_1.1Mn_2.9O₁₂ has been synthesized by solid-state reactions at 1673 K. The crystal structure has been investigated using X-ray and neutron diffraction. The hexagonal perovskite structure has an ordered arrangement of Sn and Mn ions on the corner-sharing octahedral centers and the face-sharing octahedral centers respectively. Short Mn-Mn distances have been evidenced in the face-sharing trimer of MnO₆ octahedra. The magnetic susceptibility shows magnetic cluster behavior, with cluster formation temperature ∼220 K. Antiferromagnetic order has been observed at <i>T</i> _N ∼ 6 K. Ba₄Sn_1.1Mn_2.9O₁₂ is a semiconductor with a transport ac2021-01-01T00:00:00Z2021 Dec2025-04-04T23:15:25.846Z2025-04-04T23:15:25.846ZS-EPMC90448383549413910.1039/d1ra07841k