Rubidium vanadium(III) vanadyl(IV) phosphate, RbV(VO)(PO)(HPO): crystal chemistry and low-dimensional magnetism.

In this paper, we present the synthesis and characterization of a rubidium vanadium(III) vanadyl(IV) phosphate, obtained under hydrothermal conditions. The new compound crystallizes in the triclinic space group 1̄ with the unit cell parameters = 9.637(1), = 12.

Preparation and Characterization of a High-Entropy Magnet, (Mg, Mn, Co, Ni, Cu)TeO.

We report on the synthesis of MgMnCoNiCuTeO, which is isostructural with multiferroic MnTeO (space group ). Study of its magnetic properties indicates establishment of the long-range antiferromagnetic order at 16.3 K, slightly lower than that of pure MnTeO.

Crystal structure of KMnPOF with short- and long-range order inside the layered magnetic system.

Potassium manganese fluoride phosphate, KMnPOF, has been obtained through mild hydrothermal synthesis and characterized by scanning electron microscopy, microprobe analysis and X-ray diffraction. The compound possesses an orthorhombic symmetry and chiral space group 222 with = 4.7884(2), = 9.

Sequence of Structural and Magnetic Phase Transitions in (NO)Mn(NO).

New nitrosonium manganese(II) nitrate, (NO)Mn(NO), has been synthesized and structurally characterized. In the temperature range of 45-298 K, the crystal is hexagonal (centrosymmetric sp. gr.

Lamellar Crystal Structure and Haldane Magnetism in NH VPO OH.

A novel vanadium hydroxide-phosphate, NH VPO OH, was synthesized hydrothermally in V O -NH H PO -citric acid system at 230 °C. It was characterized by XRD, TG-DSC, SEM-EDX, FTIR and NMR spectroscopy. NH VPO OH is isostructural with NH GaPO OH and features edge-sharing chains of VO octahedra.

KMnO(OH)(VO)(VO) with Sawtooth Chains of Multivalent Manganese Triangular Trimer Units: Magnetic Susceptibility Shrouding a Long-Range Antiferromagnetic Order of Ferromagnetic Triangles.

-Pyrovanadate (or -diorthovanadate) KMnMnO(OH)(VO)(VO) synthesized hydrothermally crystallizes in the orthorhombic space group with = 17.9155(5), = 5.8940(2), = 10.

Nonstoichiometric Ellenbergerite-Type Phosphates: Hydrothermal Synthesis, Crystal Chemistry, and Magnetic Behavior.

We synthesized single crystals of NaNi(OH)(HPO) () and polycrystals of (Na, Ni)Ni(OH)(HPO) () with ellenbergerite-like structures using the hydrothermal method. The phases crystallize in the hexagonal space group 6 with the following unit cell parameters: = 12.5342(1) Å, = 4.

A Novel Mineral-like Copper Phosphate Chloride with a Disordered Guest Structure: Crystal Chemistry and Magnetic Properties.

Novel copper phosphate chloride has been obtained under middle-temperature hydrothermal conditions. Its crystal structure was established based on the low-temperature X-ray diffraction data: NaLi(Cs,K)[Cu(PO)Cl]·3.5(HO,OH), sp.

Hydrothermal Synthesis and a Composite Crystal Structure of NaCuBiO(PO)[Cl,(OH)] as a Candidate for Quantum Spin Liquid.

A novel sodium bismuth oxo-cuprate phosphate chloride, NaCuBiO(PO)[Cl(OH)], containing square-kagomé layers of Cu has been synthesized by hydrothermal techniques. The compound crystallizes in the tetragonal space group 4/, = 10.0176(4), = 10.

An Orthorhombic Modification of KCoPO Stabilized under Hydrothermal Conditions: Crystal Chemistry and Magnetic Behavior.

A novel modification of the KCoPO, δ-phase has been prepared by hydrothermal synthesis at 553 K. The compound crystallizes in the orthorhombic system with the unit-cell parameters = 8.5031(8), = 10.

Crystal structure and thermodynamic properties of dinickel diphosphate dihydrate Ni(HO)[PO].

Single crystals of dinickel diphosphate dihydrate, Ni(HO)[PO], have been synthesized by a hydrothermal method. Its structure was refined in the monoclinic P2/n space group (unit cell parameters a = 6.2517(1) Å, b = 13.

Joint crystallization of KCuAl[PO] and K(Al,Zn)[(P,Si)O]: crystal chemistry and mechanism of formation of phosphate-silicate epitaxial heterostructure.

Two novel phases, potassium copper aluminium bis(phosphate), KCuAl[PO] (I), and potassium zinc aluminium bis(phosphate-silicate), K(Al,Zn)[(P,Si)O] (II), were obtained in one hydrothermal synthesis experiment at 553 K. Their crystal structures have been studied using single-crystal X-ray diffraction. (I) is a new member of the AMM[PO] family.

A commensurately modulated crystal structure and the physical properties of a novel polymorph of the caesium manganese phosphate CsMnPO.

A novel modification of the CsMnPO β-phase was achieved by hydrothermal synthesis at 553 K. The compound crystallizes in the monoclinic system with the basic unit-cell parameters a = 11.0699 (4), b = 11.

Chain caesium borophosphates with B:P ratio 1:2: synthesis, structure relationships and low-temperature thermodynamic properties.

Three caesium-bearing borophosphates, Cs[BPO(OH)] (I), CsMn(HO)[BPO]·0.45HO (II) and CsMn[BPO(OH)] (III), were synthesized by a hydrothermal method at 473-523 K. Their crystal structures have been studied by means of single-crystal X-ray diffraction; all three structures comprise borophosphate chain anions with a B:P ratio of 1:2.

Crystal chemistry and physical properties of the AM(HO)[BPO(OH)] (A = Cs, Rb; M = Ni, Cu, (Ni, Fe)) borophosphate family.

Three new transition metal borophosphates, CsCu(HO)[BPO(OH)] (denoted (I)), CsNi(HO)[BPO(OH)] (II) and mixed RbNiFe(HO)[BPO(OH)] (III), were synthesized by a boric acid flux method at 473-493 K. X-ray single-crystal diffraction study confirms their isotipy with (Cs/Rb)Co(HO)[BPO(OH)] borophosphates crystallizing in the orthorhombic space group Pbca. The crystal structures of all compounds are based on 3D frameworks made from corrugating borophosphate layers [BPO(OH)] and trimers of MO(HO) and two MO edge-sharing octahedra.

Crystal Structures and Low-Dimensional Ferromagnetism of Sodium Nickel Phosphates NaNi(PO)·HO and NaNi(PO)OH.

Two new sodium nickel phosphates, NaNi(PO)·HO (I) and NaNi(PO)OH (II), have been synthesized hydrothermally and characterized by synchrotron X-ray diffraction, electron diffraction, low-temperature thermodynamic and magnetic measurements, and ab initio calculations. Unlike the majority of Ni compounds, I and II show predominant ferromagnetic exchange couplings. I crystallizes in the monoclinic space group P2/ n ( a = 14.

Canted antiferromagnet superimposed on a buckled kagomé network in RbMn(PO).

Rubidium tetramanganese tris(phosphate), RbMn(PO), has been synthesized as single crystals under hydrothermal conditions. The crystal structure was refined in the space group Pnnm (D). It is argued that the size factor R/R, i.

Crystal structure and spin-trimer magnetism of Rb(HO)Mn[BPO(O,OH)].

The novel borophosphate Rb(HO)Mn[BPO(O,OH)] was prepared under hydrothermal conditions at 553 K. Its crystal structure was determined using single-crystal X-ray diffraction data obtained from a non-merohedral twin and refined against F to R = 0.057.

Structure-Property Relationships in α-, β'-, and γ-Modifications of Mn(PO).

The manganese orthophosphate, Mn(PO), is characterized by the rich variety of polymorphous modifications, α-, β'-, and γ-phases, crystallized in monoclinic P2/c (P2/n) space group type with unit cell volume ratios of 2:6:1. The crystal structures of these phases are constituted by three-dimensional framework of corner- and edge-sharing [MnO] and [MnO] polyhedra strengthened by [PO] tetrahedra. All compounds experience long-range antiferromagnetic order at Neel temperature T = 21.

An open framework crystal structure and physical properties of RbCuAl(PO4)2.

The novel phosphate RbCuAl(PO4)2 was prepared by hydrothermal synthesis at 553 K. Its crystal structure was determined using single-crystal X-ray diffraction data and refined against F(2) to R = 0.026.

Two-dimensional zeolite-like network in the new caesium copper aluminate Cs2CuAl4O8.

Monoclinic dicaesium copper tetraaluminate, Cs2CuAl4O8, space group P2(1)/c, a = 8.4551 (7), b = 10.012 (1), c = 17.

A novel cobalt sodium phosphate hydroxide with the ellenbergerite topology: crystal structure and physical properties.

The novel phase Na2-xCo6(OH)3[HPO4][Hx/3PO4]3 (x≈ 1.1) was prepared by hydrothermal synthesis at 553 K. Its crystal structure was determined using single-crystal X-ray diffraction data and refined against F(2) to R = 0.