Binary molybdates K4M2+(MoO4)3 (M2+ = Mg, Mn, Co) and crystal structure of K4Mn(MoO4)3

被引：19

作者：

Solodovnikov, SF ^{[1
]}

Klevtsov, PV ^{[1
]}

Solodovnikova, ZA ^{[1
]}

Glinskaya, LA ^{[1
]}

Klevtsova, RF ^{[1
]}

机构：

[1] Russian Acad Sci, Inst Inorgan Chem, Siberian Branch, Novosibirsk, Russia

来源：

JOURNAL OF STRUCTURAL CHEMISTRY | 1998年 / 39卷 / 02期

关键词：

Coordination Polyhedron; Main Structural Feature; High Coordination Number; CoMoO4; Spontaneous Crystallization;

D O I：

10.1007/BF02873623

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Binary molybdates K4M2+(MoO4)(3) (M2+ = Mg, Mn, Co) isostructural to triclinic alpha-K4Zn(WO4)(3) were synthesized and optimal conditions for their spontaneous crystallization were found. It was established by XRPA and DTA that at 530 degrees C the structure of the compound with cobalt undergoes a transition to the orthorhombic structure of K4Zn(MoO4)(3). The structure of K4Mn(MoO4)(3) was determined from single crystal diffraction data (a = 7.613: b = 9.955, c = 10.156 Angstrom alpha = 92.28, beta = 106.66, gamma = 105.58 degrees, Z = 2 space group P (1) over bar, R = 0.030). In this compound; Mn has a higher coordination number (CN = 5 + 1) than that of Zn in alpha-K4Zn(WO4)(3) (CN = 4 + 1). The main structural feature is pairs of MnO6 octahedra linked by the bridging MoO4 tetrahedra into ribbons stretching along the a axis. The structure is compared with related structures of binary molybdates and other members of the alluaudite family.

引用

页码：230 / 237

页数：8

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