Crystal growth, structure elucidation and CHARDI/BVS investigations of β-KCoFe(PO₄)₂.

ABSTRACT: Single crystals of β-KCoFe(PO₄)₂, potassium cobalt(II) iron(III) bis-(ortho-phosphate), were grown from the melt under atmospheric conditions. This phosphate crystallizes isotypically with KZnFe(PO₄)₂ in space group C2/c, adopting a zeolite-ABW type of structure. The structure of the present phosphate is distinguished by an occupational disorder of the two transition-metal sites with ratios Fe:Co of 0.5725:0.4275 for the first and 0.4275:0.5725 for the second site. In the crystal structure, PO₄ and (Co,Fe)O₄ tetra-hedra are linked through vertices to form elliptical rings with the sequence DDDDUUUU of up (U) and down (D) pointing vertices. Each eight-membered ring is surrounded by fo

SUBMITTER: Bouraima A 

PROVIDER: S-EPMC9260352 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature