Novel Manganate Cs23Mn16O28 Containing Two Different Types of Quasi One‐Dimensional Polyanions, 1∞[MnO2]n and Unique 1∞[Mn3O5]n. Issue 21 (10th July 2017)

• Record Type: Journal Article
• Authors: Nuss, Jürgen; Señarís‐Rodríguez, María A.; Klemenz, Sebastian; Jansen, Martin
• Is Part Of: Zeitschrift für anorganische und allgemeine Chemie. Volume 643:Issue 21(2017)
• Page Start: 1351
• Page End: 1356
• Publication Date: 2017-07-10
• Subjects: Azide/nitrate route -- Magnetic properties -- Manganese -- Polyanions -- Mixed valent manganese; Chemistry, Inorganic -- Periodicals; Chemistry -- Periodicals; 540
• DOI: 10.1002/zaac.201700159
• Languages: English
• ISSNs: 0044-2313

Abstract

Abstract : Cs23 Mn16 O23 was synthesized via the azide/nitrate route from mixtures of Mn2 O3, CsNO3, and CsN3 . This manganese(II/III) mixed‐valent oxide, which contains only one Mn 3+ besides 15 Mn 2+ cations, was studied by single‐crystal X‐ray diffraction and magnetic susceptibility measurements. Its crystal structure [ P 1, Z = 1, a = 1114.26(2), b = 1185.53(2), c = 1205.39(2) pm, α = 70.596(1), β = 80.377(2), γ = 83.072(2)°, R 1 = 0.033] is based on a honeycomb‐like arrangement of cesium atoms, providing the space for two different types of one‐dimensional polyoxomanganate anions, illustrated by the syntax Cs23 [MnO2 ]4 [Mn3 O5 ]4 . Magnetic susceptibility measurements indicate dominant antiferromagnetic intra‐chain interactions present already at ambient temperature and long range inter‐chain magnetic ordering at 11 K. Abstract :