title: Synthesis and crystal structure of a new alluaudite-like iron phosphate Na2CaMnFe(PO4)3.
abstract: A new iron phosphate, disodium calcium manganese(II) iron(III) tris(phosphate), Na2CaMnFe(PO4)3, has been synthesized as single crystals by the flux technique. This compound crystallizes in the monoclinic space groupC2/c. The structure belongs to the alluaudite structural type and thus, it obeys theX(2)X(1)M(1)M(2)2(PO4)3general formula. Both theX(2) andX(1) sites are fully occupied by sodium, whileM(1) is occupied by calcium andM(2) exhibits a statistical distribution of iron and manganese.
authors.affiliation: Unité de Recherche, Matériaux Inorganiques, Faculté des Sciences, Université de Monastir, 5019, Monastir, Tunisia.
authors.forename: Semeh
authors.initials: S
authors.lastname: Jebli
authors.affiliation: Unité de Recherche, Matériaux Inorganiques, Faculté des Sciences, Université de Monastir, 5019, Monastir, Tunisia.
authors.forename: Abdessalem
authors.initials: A
authors.lastname: Badri
authors.affiliation: Unité de Recherche, Matériaux Inorganiques, Faculté des Sciences, Université de Monastir, 5019, Monastir, Tunisia.
authors.forename: Mongi
authors.initials: M
authors.lastname: Ben Amara
keywords: XRD; alluaudite structure; crystal structure; iron phosphate