Crystal structure of langbeinite-related Rb0.743K0.845Co0.293Ti1.707(PO4)3

Strutynska, Nataliya Yu.; Бондаренко, Н. А.; Ogorodnyk, Ivan V.; Baumer, V. N.; Slobodyanik, Nikolay S.

doi:10.1107/s2056989015001826

Cited by 3 publications

(1 citation statement)

References 21 publications

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“…In the case of phosphate K 0.10 Na 0.90 Ti 2 (PO 4 ) 3 such blocks are connected along axes c that is characteristic for sodium‐containing compounds with NASICON‐type structure (figure a). In the structure of K 0.877 Na 0.48 Ti ІІІ 0.357 Ti ІV 1.643 (PO 4 ) 3 the fragments [Ti 2 (PO 4 ) 3 ] run in four directions parallel to the cube diagonals (figure b) that is characteristic for complex substituted potassium or rubidium‐containing langbeinites .…”

Section: Resultsmentioning

confidence: 99%

Phase formation in molten system (Na/K)₂O‐TiO₂‐P₂O₅. Crystal structures of NASICON and langbeinite‐related phosphates (K/Na)_1+xTi₂(PO₄)₃ (x = 0 and 0.357)

Strutynska

Бондаренко

Slobodyanik

et al. 2016

Crystal Research and Technology

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Crystallization of high temperature self-flux of system Na 2 O-K 2 O-TiO 2 -P 2 O 5 was investigated at different molar ratios (Na+K)/P = 0.9; 1.0 or 1.2 and Na/K = 1.0 or 2.0 over the temperature range 1000-650°C. The conditions of formation of complex phosphates K 0.10 Na 0.90 Ti 2 (PO 4 ) 3 (NASICONrelated) and K 0.877 Na 0.48 Ti ІІІ 0.357 Ti ІV 1.643 (PO 4 ) 3 (langbeiniterelated) have been established. The new obtained compounds were investigated using FTIR-spectroscopy, powder and single crystal X-ray diffraction and optical microscopy methods. The influence of alkaline metal nature on the structure formation of complex phosphates in the high temperature self-fluxes is discussed.

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Section: Resultsmentioning

confidence: 99%

Phase formation in molten system (Na/K)₂O‐TiO₂‐P₂O₅. Crystal structures of NASICON and langbeinite‐related phosphates (K/Na)_1+xTi₂(PO₄)₃ (x = 0 and 0.357)

Strutynska

Бондаренко

Slobodyanik

et al. 2016

Crystal Research and Technology

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Crystallization of complex phosphates based on titanium and bivalent or trivalent metals from cesium and rubidium phosphate self-fluxes

2019

Funct.Mater.

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Influence of the nature of MIII on the crystallization of complex phosphates in the self-flux system Rb2O–P2O5–TiO2–MIII2O3

2019

VKhKhT

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Êè¿âñüêèé íàö³îíàëüíèé óí³âåðñèòåò ³ìåí³ Òàðàñà Øåâ÷åíêà, ì. Êè¿â, Óêðà¿íà Äîñë³äaeåíî çàêîíîì³ðíîñò³ ôîðìóâàííÿ ñêëàäíèõ ôîñôàò³â â óìîâàõ êðèñòàë³çàö³¿ ðîç÷èí-ðîçïëàâ³â ñèñòåì Rb 2 O-P 2 O 5 -TiO 2 òà Rb 2 O-P 2 O 5 -TiO 2 -M III 2 O 3 (M I²I =Fe, Ga, Mn) â ìåaeàõ ìîëüíèõ ñï³ââ³äíîøåíü Rb/P=0,5-1,3 òà ô³êñîâàíèõ çíà÷åííÿõ Ò³/Ð=0,3 ³ Ti/M III =1,0 ó òåìïåðàòóðíîìó ³íòåðâàë³ 1000-650 0 Ñ. Äëÿ ñèñòåìè Rb 2 O-P 2 O 5 -TiO 2 âñòàíîâëåíî âïëèâ ìîëüíîãî ñï³ââ³äíîøåííÿ Rb/P íà ñêëàä îäåðaeàíèõ ôîñôàò³â: Rb 3 Ti 2 (TiO)(PO 4 ) 3 (P 2 O 7 ) (ïðè Rb/P1,0) òà RbTiOPO 4 (ïðè Rb/P=1,2). Ç'ÿñîâàíî, ùî äîäàâàííÿ êàò³îí³â òðèâàëåíòíèõ ìåòàë³â äî âèõ³äíîãî ðîçïëàâó äëÿ ñèñòåì Rb 2 O-P 2 O 5 -TiO 2 -M III 2 O 3 ñïðèÿº ôîðìóâàííþ ôàçè ëàíãáåéí³òîâîãî òèïó Rb 2 FeTi(PO 4 ) 3 (äëÿ ôåðóìó) òà íîâîãî ôîñôàòó Rb 1,3 Ti 0,7 Ga 0,3 ÎPO 4 (äëÿ ãàë³þ). Çã³äíî ç äàíèìè ÒÃ/ÄÒÀ íîâ³ ñèíòåçîâàí³ ôîñôàòè Rb 2 FeTi(PO 4 ) 3 òà Rb 1,3 Ti 0,7 Ga 0,3 ÎPO 4 ïëàâëÿòüñÿ ïðè òåìïåðàòóð³ âèùå 1000 0 Ñ. Ñèíòåçîâàí³ ôîñôàòè äîñë³äaeåí³ ìåòîäàìè ïîðîøêîâî¿ ðåíòãåíîãðàô³¿, ²×-ñïåêòðîñêîï³¿, îïòè÷íî¿ ì³êðîñêîï³¿ òà ÒÃ/ÄÒÀ.

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Crystal structure of langbeinite-related Rb_0.743K_0.845Co_0.293Ti_1.707(PO₄)₃

Abstract: Single crystals of the langbeinite-related phosphate Rb0.743K0.845Co0.293Ti1.707(PO4)3 have been prepared by crystallization of high-temperature self-flux K2O–Rb2O–P2O5–TiO2–CoO.

Cited by 3 publications

References 21 publications

Phase formation in molten system (Na/K)₂O‐TiO₂‐P₂O₅. Crystal structures of NASICON and langbeinite‐related phosphates (K/Na)_1+xTi₂(PO₄)₃ (x = 0 and 0.357)

Phase formation in molten system (Na/K)₂O‐TiO₂‐P₂O₅. Crystal structures of NASICON and langbeinite‐related phosphates (K/Na)_1+xTi₂(PO₄)₃ (x = 0 and 0.357)

Crystallization of complex phosphates based on titanium and bivalent or trivalent metals from cesium and rubidium phosphate self-fluxes

Influence of the nature of MIII on the crystallization of complex phosphates in the self-flux system Rb2O–P2O5–TiO2–MIII2O3

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Crystal structure of langbeinite-related Rb0.743K0.845Co0.293Ti1.707(PO4)3

Abstract: Single crystals of the langbeinite-related phosphate Rb0.743K0.845Co0.293Ti1.707(PO4)3 have been prepared by crystallization of high-temperature self-flux K2O–Rb2O–P2O5–TiO2–CoO.

Cited by 3 publications

References 21 publications

Phase formation in molten system (Na/K)2O‐TiO2‐P2O5. Crystal structures of NASICON and langbeinite‐related phosphates (K/Na)1+xTi2(PO4)3 (x = 0 and 0.357)

Phase formation in molten system (Na/K)2O‐TiO2‐P2O5. Crystal structures of NASICON and langbeinite‐related phosphates (K/Na)1+xTi2(PO4)3 (x = 0 and 0.357)

Crystallization of complex phosphates based on titanium and bivalent or trivalent metals from cesium and rubidium phosphate self-fluxes

Influence of the nature of MIII on the crystallization of complex phosphates in the self-flux system Rb2O–P2O5–TiO2–MIII2O3

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Crystal structure of langbeinite-related Rb_0.743K_0.845Co_0.293Ti_1.707(PO₄)₃

Phase formation in molten system (Na/K)₂O‐TiO₂‐P₂O₅. Crystal structures of NASICON and langbeinite‐related phosphates (K/Na)_1+xTi₂(PO₄)₃ (x = 0 and 0.357)

Phase formation in molten system (Na/K)₂O‐TiO₂‐P₂O₅. Crystal structures of NASICON and langbeinite‐related phosphates (K/Na)_1+xTi₂(PO₄)₃ (x = 0 and 0.357)