Published September 2010 | Version v1
Journal article Metadata-only

Polymorphism of the borophosphate anion in K(Fe,Al)[BP2O8(OH)] and Rb(Al, Fe)[BP2O8(OH)] crystal structures

Creators

  • 1. Moscow State University (Russian Federation)
  • 2. University of Chicago (United States)

Description

The crystal structure of two borophosphates, Rb(Al,Fe)[BP2O8(OH)] (a = 9.381(6), b = 8.398(5), c = 9.579(6) A, β = 102.605(10)o, sp. gr. P21/c) and K(Fe,Al)[BP2O8(OH)] (a = 5.139(2), b = 8.065(4), c = 8.290(4)A, α = 86.841(8)o, β = 80.346(8)o, γ = 86.622(8)o, sp. gr. P1-bar), obtained by hydrothermal synthesis in the AlCl3: FeCl3: K3PO4(Rb3PO4): B2O3: H2O system has been established using X-ray diffraction (Bruker Smart diffractometer, T = 100 K). Hydrogen atoms are located and their coordinates and thermal parameters are refined. It is shown that the polymorphism of the [BP2O8(OH)]4- borophosphate anion has a morphotropic nature and is related to the substitutions both in the cationic part of the structure and in the octahedral position of the anionic mixed framework. The synthesis of new isotypic triclinic compounds under hydrothermal conditions is predicted.

Additional details

Identifiers

DOI
10.1134/S106377451005007X;

Publishing Information

Journal Title
Crystallography Reports
Journal Volume
55
Journal Issue
5
Journal Page Range
p. 760-768
ISSN
1063-7745
CODEN
CYSTE3

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
44014063
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Descriptors DEI
ALUMINIUM CHLORIDES; ANIONS; BORON OXIDES; HYDROTHERMAL SYNTHESIS; IRON CHLORIDES; MONOCLINIC LATTICES; POTASSIUM PHOSPHATES; RUBIDIUM PHOSPHATES; TRICLINIC LATTICES; X-RAY DIFFRACTION
Descriptors DEC
ALKALI METAL COMPOUNDS; ALUMINIUM COMPOUNDS; ALUMINIUM HALIDES; BORON COMPOUNDS; CHALCOGENIDES; CHARGED PARTICLES; CHLORIDES; CHLORINE COMPOUNDS; COHERENT SCATTERING; CRYSTAL LATTICES; CRYSTAL STRUCTURE; DIFFRACTION; HALIDES; HALOGEN COMPOUNDS; IODIDES; IODINE COMPOUNDS; IONS; IRON COMPOUNDS; IRON HALIDES; IRON IODIDES; OXIDES; OXYGEN COMPOUNDS; PHOSPHATES; PHOSPHORUS COMPOUNDS; POTASSIUM COMPOUNDS; RUBIDIUM COMPOUNDS; SCATTERING; SYNTHESIS; TRANSITION ELEMENT COMPOUNDS

Optional Information

Copyright
Copyright (c) 2010 Pleiades Publishing, Ltd.