Acta Crystallogr B Struct Sci Cryst Eng Mater
February 2025
A microporous zincophosphate with the idealized formula NaZn[Zn(PO)] was obtained through high-temperature hydrothermal synthesis and characterized by scanning electron microscopy, microprobe analysis and X-ray diffraction. The orthorhombic compound, which crystallizes in acentric space group Pna2 with unit-cell parameters a = 12.9901 (2), b = 16.
View Article and Find Full Text PDF-Pyrovanadate (or -diorthovanadate) KMnMnO(OH)(VO)(VO) synthesized hydrothermally crystallizes in the orthorhombic space group with = 17.9155(5), = 5.8940(2), = 10.
View Article and Find Full Text PDFActa Crystallogr B Struct Sci Cryst Eng Mater
February 2023
The synthesis and characterization of a first salt-inclusion aluminophosphate oxocuprate, (Na,Li)(Cl,OH)[CuOAl(PO)], obtained as single crystals, is reported. A novel phase, with a strongly pseudo-orthorhombic structure, is described as a monoclinic crystal structure established by the study of a pseudomerohedric microtwin. It was investigated using scanning electron microscopy, microprobe analysis and low-temperature X-ray diffraction.
View Article and Find Full Text PDFTwo new compounds, sodium copper nickel diorthophosphate, NaCuNi(PO) (I), and dimanganese copper diorthophosphate, MnCu(PO) (II), were synthesized hydrothermally, yielding single crystals, and were studied by X-ray diffraction. In the crystal structures, various transition metals of d-elements occupy symmetrically independent crystallographic positions with different coordination geometries. In the crystal structure of NaNiCu(PO), NiO and CuO octahedra share edges to form chains that PO groups link into a framework with cavities filled with Na atoms.
View Article and Find Full Text PDFWe 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.
View Article and Find Full Text PDFA 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.
View Article and Find Full Text PDFA 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.
View Article and Find Full Text PDFSingle 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.
View Article and Find Full Text PDFActa Crystallogr B Struct Sci Cryst Eng Mater
October 2019
Single crystals of RbCaCu(PO)O were synthesized by a hydrothermal method in the multicomponent system CuCl-Ca(OH)-RbCl-BO-RbPO. The synthesis was carried out in the temperature range from 690 to 700 K and at the general pressure of 480-500 atm [1 atm = 101.325 kPa] from the mixture in the molar ratio 2CuO:CaO:RbO:BO:PO.
View Article and Find Full Text PDFThe bismuth(III) oxophosphate Bi(PO)O was obtained by hydrothermal synthesis. The unit cell has a = 5.6840(6) Å, b = 7.
View Article and Find Full Text PDFThe 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.
View Article and Find Full Text PDFSingle crystals of two new iodide-iodates, Bi[IO]·AgI and Tb[IO]·AgI, are synthesized in hydrothermal systems. The anionic parts in both iodide-iodates are characterized as a complex charged framework of isolated IO umbrella-like groups and large Bi(Tb)-O polyhedra similar to those previously found in La[IO][IO](PbO). Broad channels along the c-axis contain compensators: (AgI) umbrella-like groups and additional Ag ions which form Ag tetrahedral clusters augmented with I halogen.
View Article and Find Full Text PDFThe 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.
View Article and Find Full Text PDFMixed potassium-manganese vanadate-carbonate, K(2)Mn(3)(VO(4))(2)(CO(3)), represents a novel structure type; it has been synthesized hydrothermally from the system MnCl(2)-K(2)CO(3)-V(2)O(5)-H(2)O. Its hexagonal crystal structure was determined by single-crystal X-ray diffraction with a = 5.201(1) Å, c = 22.
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