Synthesis, crystal structure and charge-distribution validation of a new alluaudite-type phosphate, NaMnIn(PO).

NaMnIn(PO, sodium manganese indium tris-(phosphate) (2.22/0.87/1.

Synthesis and crystal structure of a new magnesium phosphate NaRbMg(PO).

A new magnesium phosphate, NaRbMg(PO) [tris-odium rubidium hepta-magnesium hexakis(ortho-phosphate)], has been synthesized as single crystals by the flux method and exhibits a new structure type. Its original structure is built up from MgO ( = 5 and 6) polyhedra linked directly to each other through common corners or edges and reinforced by corner-sharing with PO tetra-hedra. The resulting anionic three-dimensional framework leads to the formation of channels along the [010] direction, in which the Na cations are located, while the Rb cations are located in large inter-stitial cavities.

Synthesis and crystal structure of a new alluaudite-like iron phosphate NaCaMnFe(PO).

A new iron phosphate, disodium calcium manganese(II) iron(III) tris(phosphate), NaCaMnFe(PO), has been synthesized as single crystals by the flux technique. This compound crystallizes in the monoclinic space group 2/. The structure belongs to the alluaudite structural type and thus, it obeys the (2)(1)(1)(2)(PO) general formula.

RbZnFe(PO4)2: synthesis and crystal structure.

A new iron phosphate, rubidium zinc iron(III) phosphate, RbZnFe(PO4)2, has been synthesized as single crystals by the flux method. This compound is isostructural to the previously reported KCoAl(PO4)2 [Chen et al. (1997 ▸).

Synthesis and crystal structure of NaMgFe(MoO4)3.

The iron molybdate NaMgFe(MoO4)3 {sodium magnesium iron(III) tris-[molybdate(VI)]} has been synthesized by the flux method. This compound is isostructural with α-NaFe2(MoO4)3 and crystallizes in the triclinic space group P-1. Its structure is built up from [Mg,Fe]2O10 units of edge-sharing [Mg,Fe]O6 octa-hedra which are linked to each other through the common corners of [MoO4] tetra-hedra.

Novel Mixed Cobalt/Chromium Phosphate NaCoCr2(PO4)3 Showing Spin-Flop Transition.

We describe the synthesis and the crystallographic and magnetic properties of a novel NaCoCr2(PO4)3 phosphate. A conventional solid-state reaction was used to obtain single-phase powders. A Rietveld analysis of powder X-ray diffraction data proposes an orthorhombic symmetry similar to α-CrPO4-type structure in space group Imma with the following unit cell parameters: a = 10.

RbCuFe(PO4)2.

A new iron phosphate, rubidium copper(II) iron(III) bis-(phosphate), RbCuFe(PO4)2, has been synthesized as single crystals by the flux method. This compound is isostructural with KCuFe(PO4)2 [Badri et al. (2011 ▶), J.

Na(7)Mg(13)Nd(PO(4))(12).

Investigations of the quasi-ternary system Na(3)PO(4)-Mg(3)(PO(4))(2)-NdPO(4) allowed us to obtain the new phosphate hepta-sodium trideca-magnesium neodymium dodeca-kis-phosphate, Na(7)Mg(13)Nd(PO(4))(12), by applying a flux method. The crystal structure is isotypic with that of the previously reported Na(7)Mg(13)Ln(PO(4))(12) (Ln = Eu, La) compounds. It consists of a complex three-dimensional framework built up from an NdO(8) polyhedron (m symmetry), an MO(6) octa-hedron statistically occupied by M = Mg and Na, and eight MgO(x) (x = 5, 6) polyhedra (four with site symmetry m), linked either directely by sharing corners, edges and faces, or by one of the eight unique PO(4) tetra-hedra through common corners.

Structure and 31P NMR spectroscopy of a new phosphate, Na8Ca1.5Mg12.5(PO4)12.

A new phosphate, sodium calcium magnesium tetrakis(phosphate), Na(8)Ca(1.5)Mg(12.5)(PO(4))(12), has been synthesized by a flux method.

Structural study of the Li(0.5)Na(0.5)MnFe2(PO4)3 and Li(0.75)Na(0.25)MnFe2(PO4)3 alluaudite phases and their electrochemical properties as positive electrodes in lithium batteries.

The alluaudite lithiated phases Li(0.5)Na(0.5)MnFe(2)(PO(4))(3) and Li(0.

K(0.53)Mn(2.37)Fe(1.24)(PO(4))(3).

During an attempt to crystallize potassium manganese diiron phosphate KMnFe(2)(PO(4))(3) by the flux method, a new phase, potassium dimanganese iron triphosphate, K(0.53)Mn(2.37)Fe(1.

The iron phosphate CaFe(3)(PO(4))(3)O.

A new iron phosphate, calcium triiron(III) tris-(phosphate) oxide, CaFe(3)(PO(4))(3)O, has been isolated and shown to exhibit a three-dimensional structure built by FeO(6) octa-hedra, FeO(5) trigonal bipyramids and PO(4) tetra-hedra. The FeO(x) (x = 5, 6) polyhedra are linked through common corners and edges, forming [Fe(6)O(28)](∞) chains with branches running along [010]. Adjacent chains are connected by the phosphate groups via common corners and edges, giving rise to a three-dimensional framework analogous to those of the previously reported SrFe(3)(PO(4))(3)O and Bi(0.

The iron phosphate NaBaFe(2)(PO(4))(3).

A new iron phosphate, sodium barium diiron tris-(phosphate), NaBaFe(2)(PO(4))(3), has been synthesized by the flux method and shown to exhibit the well known langbeinite type structure. The Na, Ba and Fe atoms all lie on threefold axes, while the P and O atoms occupy general positions, one of the O atoms being disordered over two positions, with site occupancy factors of ca 0.7 and 0.

The iron phosphate K3Fe5 PO4 6.

The crystal structure of tripotassium pentairon hexaphosphate has been determined by single-crystal X-ray diffraction. The structure contains one Fe atom on a center of symmetry, one K, two Fe and two P atoms on twofold axes, and one Fe, two P and one K atom in general positions. The K(3)Fe(5)(PO(4))(6) structure consists of a complex three-dimensional framework of corner-sharing between iron polyhedra, and corner- and edge-sharing between PO(4) tetrahedra and iron polyhedra (FeO(5) and FeO(6)).

The iron phosphate NaZnFe2 PO43.

Crystals of sodium zinc diiron(III) triphosphate, NaZnFe(2)(PO(4))(3), have been synthesized and structurally characterized by single-crystal X-ray diffraction. The compound features a new structural type built up from ZnO(6) octahedra, FeO(6) octahedra and FeO(4) tetrahedra, linked together via the corners and edges of PO(4) tetrahedra to form a three-dimensional framework, with tunnels running along [100]. Within these tunnels, Na(+) cations occupy a highly distorted cubic site.