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Interaction in the molten system Rb 2 O‐P 2 O 5 ‐TiO 2 ‐NiO. Crystal structure of the langbeinite‐related Rb 2 Ni 0.5 Ti 1.5 (PO 4 ) 3
Author(s) -
Strutynska Nataliia Yu.,
Bondarenko Marina A.,
Ogorodnyk Ivan V.,
Zatovsky Igor V.,
Slobodyanik Nikolay S.,
Baumer Vyacheslav N.,
Puzan An.
Publication year - 2015
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.201500050
Subject(s) - octahedron , non blocking i/o , rubidium , crystallography , crystal structure , diffraction , spectroscopy , chemistry , infrared spectroscopy , space group , atmospheric temperature range , fourier transform infrared spectroscopy , materials science , x ray crystallography , analytical chemistry (journal) , potassium , metallurgy , physics , biochemistry , organic chemistry , chromatography , quantum mechanics , meteorology , optics , catalysis
The interaction in the molten system Rb 2 O‐P 2 O 5 ‐TiO 2 ‐NiO was investigated at different molar ratios Rb/P = 0.5‐1.3, fixed Ti/P = 0.15, Ti/Ni = 1.0 at temperature range 1073–953 K. The conditions of formation of complex phosphates RbTi 2 (PO 4 ) 3 , Rb 2 Ni 0.5 Ti 1.5 (PO 4 ) 3 and RbNiPO 4 have been determined. The new phosphate Rb 2 Ni 0.5 Ti 1.5 (PO 4 ) 3 (space group P 2 1 3, a = 9.9386(2) Å) has been obtained and investigated by the single crystal X‐ray diffraction and FTIR‐spectroscopy. It has langbeinite‐like structure, that is built up from mixed (Ni/Ti)O 6 ‐octahedra and РО 4 ‐tetrahedra. Rubidium atoms are located in closed cavities of 3D‐framework.
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