Crystal structure of new lanthanide diphosphates KLnP2O7 · 2 H2O (Ln = Gd, Tb, Yb)
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Aziz A. Tahiri
Abstract
Crystals of lanthanide diphosphates KLnP2O7 · 2 H2O [Ln = Gd, Tb, Yb] have been synthesized and investigated by single-crystal X-ray diffractometry. The three structures resulted to be isostructural within monoclinic space group P21/c, with unit cell parameters of a = 7.7522(2) Å, b = 10.6732(8) Å, c = 10.1375(7) Å, β = 93.308(5)°, V = 837.39(9) Å3 (KGdP2O7 · 2 H2O = (1)), a = 7.7380(6) Å, b = 10.6360(8) Å, c = 10.1060(7) Å, β = 93.283(6), V = 830.37(11) Å3 (KTbP2O7 · 2 H2O = (2)), a = 7.6791(3) Å, b = 10.4992(7) Å, c = 9.9554(9) Å, β = 93.214(6)°, V = 801.39(10) Å3 (KYbP2O7 · 2 H2O = (3)). The three-dimensional frameworks are made by zig-zag chains of KO9 irregular polyhedra down c, sharing vertices with LnO7 polyhedra and P2O7 units; intricate hydrogen bonding networks complete the arrays.
© by Oldenbourg Wissenschaftsverlag, München
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- Crystal structure of new lanthanide diphosphates KLnP2O7 · 2 H2O (Ln = Gd, Tb, Yb)
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- Books Received
Articles in the same Issue
- Crystal structure of new lanthanide diphosphates KLnP2O7 · 2 H2O (Ln = Gd, Tb, Yb)
- Annealing effects, anomalous dielectric properties and conductivity of As-diluted lead phosphate Pb3(P1–xAsxO4)2
- Effect of hydrostatic pressure on the crystal structure of sodium oxalate: X-ray diffraction study and ab initio simulations
- The transformation mechanism of the sodalite- to the melilite-topology: Thermal expansion and decomposition of bicchulite-type to melilite-type compounds
- Ab initio crystal structure determination of Bi6Rh12O29 from powder diffraction data
- The crystal structure of natural 33R moissanite from Tibet
- Structure, phase transitions and dielectric properties of a new inclusion compound of bis-thiourea pyridinium nitrate salt
- Self-association and stereochemistry study of (5R)-4-methyl-5-phenyl-1,3,4-oxadiazinan-2-one
- The crystal and molecular structures of sodium and barium complexes of dibenzo-24-crown-8 ether
- Books Received
