Mixed-metal phosphates K1.64Na0.36TiFe(PO4)3and K0.97Na1.03Ti1.26Fe0.74(PO4)3with a langbeinite framework

Zatovsky，Igor V.1; Strutynska，Nataliia Yu2; Ogorodnyk，Ivan V.3; Baumer，Vyacheslav N.4; Slobodyanik，Nickolai S.2; Butenko，Denis S.5,6

2021-12-01

10.1107/S2056989021011877

Acta Crystallographica Section E: Crystallographic Communications   影响因子和分区

2056-9890

Single crystals of the langbeinite-type phosphates KNaTiFe(PO)and KNaTiFe(PO)were grown by crystallization from high-temperature self-fluxes in the system Na2O-KO-PO-TiO-FeOusing fixed molar ratios of (Na+K):P = 1.0, Ti:P = 0.20 and Na:K = 1.0 or 2.0 over the temperature range 1273-953 K. The three-dimensional framework of the two isotypic phosphates are built up from [(Ti/Fe)2(PO)] structure units containing two mixed [(Ti/Fe)O] octa hedra (site symmetry 3) connected via three bridging POtetra hedra. The potassium and sodium cations share two different sites in the structure that are located in the cavities of the framework. One of these sites has nine and the other twelve surrounding O atoms.

Crystal structure Framework structure Mixed occupancy Phosphate

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其他

WOS:000727765000022

2-s2.0-85121449072

Scopus

1.F.D. Ovcharenko Institute of Biocolloidal Chemistry,NAS Ukraine,Kyiv,42 Acad. Vernadskoho blv.,03142,Ukraine
2.Department of Inorganic Chemistry,Taras Shevchenko National University of Kyiv,Kyiv,64/13, Volodymyrska Str.,01601,Ukraine
3.ShimUkraine LLC 18,Chigorina Str.,Kyiv,office 429,01042,Ukraine
4.STC Institute for Single Crystals,NAS of Ukraine,Kharkiv,60 Lenin ave.,61001,Ukraine
5.Shenzhen Key Laboratory of Solid State Batteries,Academy for Advanced Interdisciplinary Studies,Southern University of Science and Technology,Shenzhen,518055,China
6.Guangdong Provincial Key Laboratory of Energy Materials for Electric Power,Southern University of Science and Technology,Shenzhen,518055,China

Zatovsky，Igor V.,Strutynska，Nataliia Yu,Ogorodnyk，Ivan V.,et al. Mixed-metal phosphates K1.64Na0.36TiFe(PO4)3and K0.97Na1.03Ti1.26Fe0.74(PO4)3with a langbeinite framework[J]. Acta Crystallographica Section E: Crystallographic Communications,2021,77:1299-1302.

Zatovsky，Igor V.,Strutynska，Nataliia Yu,Ogorodnyk，Ivan V.,Baumer，Vyacheslav N.,Slobodyanik，Nickolai S.,&Butenko，Denis S..(2021).Mixed-metal phosphates K1.64Na0.36TiFe(PO4)3and K0.97Na1.03Ti1.26Fe0.74(PO4)3with a langbeinite framework.Acta Crystallographica Section E: Crystallographic Communications,77,1299-1302.

Zatovsky，Igor V.,et al."Mixed-metal phosphates K1.64Na0.36TiFe(PO4)3and K0.97Na1.03Ti1.26Fe0.74(PO4)3with a langbeinite framework".Acta Crystallographica Section E: Crystallographic Communications 77(2021):1299-1302.