Synthesis and Properties of Rb 6 Mn 2 O 6 | Zendy

Pfeiffer Steffen | Zendy; Fischer Dieter | Zendy; Jansen Martin | Zendy

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Synthesis and Properties of Rb 6 Mn 2 O 6

Author(s) -

Pfeiffer Steffen,

Fischer Dieter,

Jansen Martin

Publication year - 2008

Publication title -

zeitschrift für anorganische und allgemeine chemie

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.354

H-Index - 66

eISSN - 1521-3749

pISSN - 0044-2313

DOI - 10.1002/zaac.200800170

Subject(s) - monoclinic crystal system , crystallography , manganese , stoichiometry , rubidium , annealing (glass) , dimer , crystal structure , tetrahedron , single crystal , magnetic susceptibility , indium , chemistry , materials science , inorganic chemistry , potassium , metallurgy , organic chemistry

Rb 6 Mn 2 O 6 was prepared via the azide/nitrate route. Stoichiometric mixtures of the precursors (Mn 3 O 4 , RbN 3 and RbNO 3 ) were heated in a special regime up to 500 °C and annealed at this temperature for 75 h in silver crucibles. Single crystals have been grown by annealing a mixture with a slight excess of rubidium components at 450 °C for 500 h. According to the single crystal structure analysis, Rb 6 Mn 2 O 6 is isotypic to K 6 Mn 2 O 6 , and crystallizes in the monoclinic space group P2 1 /c with a = 6.924(1) Å, b = 11.765(2) Å, c = 7.066(1) Å, β = 99.21(3)°, 2296 independent reflections, R 1 = 5.23 % (all data). Manganese is tetrahedrally coordinated and two tetrahedra are linked by sharing a common edge, forming a dimer [Mn 2 O 6 ] 6− . The magnetic behavior has been investigated.

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