Phase formation features in the systems M2MoO4-Fe-2(MoO4)(3) (M=Rb, Cs) and crystal structures of new double polymolybdates M3FeMo4O15

作者：Khal'baeva Klara M; Solodovnikov Sergey F^*; Khaikina Elena G; Kadyrova Yuliya M; Solodovnikova Zoya A; Basovich Olga M

来源：Journal of Solid State Chemistry, 2010, 183(3): 712-719.

DOI：10.1016/j.jssc.2010.01.008

• Alkali metal
• Iron
• Phase formation
• Non-quasibinary join
• Double polymolybdate
• Crystal structure

The systems M2MoO4-Fe-2(MoO4)(3) (M = Rb, Cs) were shown to be non-quasibinary joins of the systems M2O-Fe2O3-MoO3 New compounds M3FeMo4O15 were revealed along with the known MFe(MoO4)(2) and M5Fe(MoO4)(4) The unit cell parameters of the new compounds are a=11 6192(2), b=13.6801(3), c=9 7773(2)angstrom, beta=92 964(1)degrees, space group P2(1)/c, Z=4 (M=Rb) and a=11.5500(9), b=9.9929(7), c=14 513(1)angstrom, beta=90.676(2)degrees, space group P2(1)/n, Z=4 (M=Cs). In the structures of M3FeMo4O15 (M=Rb, Cs), a half of the FeO6 octahedra share two opposite edges with two MoO6 octahedra linked to other FeO6 octahedra through the bridged MoO4 tetrahedra by means of the common oxygen vertices to form the chains along the a axis.

• 出版日期2010-3