Abstract
Single crystals of KTb(C2O4)(SO4)(H2O), potassium aquaterbium(III) oxalate sulfate, were obtained under hydrothermal conditions. In the crystal structure, the Tb(III) atom is coordinated by four O atoms from two oxalate anions, three O atoms from three sulfate anions and one O atom from a water molecule within a TbO8 distorted square antiprismatic coordination. The potassium and terbium(III) atoms are bridged by the oxalate and sulfate groups, forming a three-dimensional structure. The coordination mode of the oxalate has not yet been reported. O—H⋯O hydrogen bonding between the water molecules and the oxygen atoms of oxalate and sulfate anions is also observed.
Highlights
Single crystals of KTb(C2O4)(SO4)(H2O), potassium aquaterbium(III) oxalate sulfate, were obtained under hydrothermal conditions
The Tb(III) atom is coordinated by four O atoms from two oxalate anions, three O
Symmetry codes: (ix) −x+1, −y+1, −z; (x) −x, −y+1, −z
Summary
R factor = 0.023; wR factor = 0.051; data-to-parameter ratio = 8.5. Single crystals of KTb(C2O4)(SO4)(H2O), potassium aquaterbium(III) oxalate sulfate, were obtained under hydrothermal conditions. The Tb(III) atom is coordinated by four O atoms from two oxalate anions, three O atoms from three sulfate anions and one O atom from a water molecule within a TbO8 distorted square antiprismatic coordination. The potassium and terbium(III) atoms are bridged by the oxalate and sulfate groups, forming a threedimensional structure. Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: BR2105)
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