Synthesis and physico-chemical study of nao.5k0.65mn3.43(as04)‎3 compound

الملخص EN

The title compound crystallizes in monoclinic system P21 / c.

The parameters of the unit cell are : a=6.856(5)A; b=13.070 (5) Å; c = 11.370(2)Å; β = 98.63(3)°; V=1007.2(5)A3 and Z=4.

The anionic framework of the compound is built up from infinite layers linked together by Mn-As-O bridges and by edge-sharing MnO6 octahedra to form a three dimensional framework having two kinds of tunnels.

The first one, containing K+ cations, is parallel to the a axis and the second one containing Na+cations is parallel to [001] direction.

Complementary infrared (IR) and complex impedance (CI) spectroscopes studies were carried out.