KMg0.09Fe1.91(PO4)2

Yatskin, M. M.; Zatovsky, Іgor V.; Baumer, V. N.; Ogorodnyk, Ivan V.; Slobodyanik, Nikolay S.

doi:10.1107/s1600536812023975

Cited by 5 publications

(4 citation statements)

References 5 publications

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“…For rubidium iron phosphates, see: Hidouri et al (2010). The title compound is isostructural with KCuFe(PO 4 ) 2 (Badri et al, 2011) and K(Fe,Mg)(PO 4 ) 2 (Yatskin et al, 2012). For P-O distances in monophosphate groups, see: Baur (1974).…”

Section: Related Literaturementioning

confidence: 99%

“…This compound is isostructural with KCuFe(PO 4 ) 2 (Badri et al, 2011) and K(Fe,Mg)(PO 4 ) 2 (Yatskin et al, 2012). The structure consists of a three-dimensional assemblage of Cu 2 O 8 units of edge-sharing CuO 5 trigonal bipyramids, linked to each other by FeO 6 octahedra through common corners to form crossing zigzag chains that run parallel to the [011] and…”

Section: Crystal Datamentioning

confidence: 99%

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RbCuFe(PO₄)₂

Badri¹,

Hidouri²,

Amara³

2013

Acta Cryst E

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A new iron phosphate, rubidium copper(II) iron(III) bis(phosphate), RbCuFe(PO4)2, has been synthesized as single crystals by the flux method. This compound is isostructural with KCuFe(PO4)2 [Badri et al. (2011 ▶), J. Solid State Chem. 184, 937–944]. Its structure is built up from Cu2O8 units of edge-sharing CuO5 polyhedra, interconnected by FeO6 octahedra through common corners to form undulating chains that extend infinitely along the [011] and [01-1] directions. The linkage of such chains is ensured by the PO4 tetraedra and the resulting three-dimensional framework forms quasi-elliptic tunnels parallel to the [101] direction in which the Rb+ cations are located.

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Section: Related Literaturementioning

confidence: 99%

Section: Crystal Datamentioning

confidence: 99%

RbCuFe(PO₄)₂

Badri¹,

Hidouri²,

Amara³

2013

Acta Cryst E

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“…Indeed, magnesium phosphate displays a bi-dimensional structure, built up from layers of corner-sharing (Fe,Mg)O 4 and PO 4 tetrahedra, the K + cations being located within the interlayer space. By contrast, the structure of copper phosphate is three-dimensional, built up by crossing chains of Cu 2 O 8 units, alternating with FeO 6 octahedra; the K + ions are found in one-dimensional hexagonal tunnels running along the [ [9] and KM II Fe(PO 4 ) 2 (M II = Co, Ni) [10]. In addition, the structural characterization revealed that the first compound was isotypic with KM II Fe(PO 4 ) 2 (M II = Cu, Fe) [8,11].…”

Section: Introductionmentioning

confidence: 99%

Crystal structure and thermal stability of new iron phosphates KMFe(PO4)2 (M = Ni, Mg, and Co)

et al. 2015

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Three isostructural iron monophosphates KNiFe(PO 4 ) 2 (KNi), KMgFe(PO 4 ) 2 (KMg-LT, where LT means "low-temperature stable phase"), and KCoFe(PO 4 ) 2 (KCo-LT) are synthesized and structurally characterized from X-ray diffraction data. They crystallize in the monoclinic system with the space group P2 1 /c. Their structures have in common a three-dimensional framework, built up by infinite zigzag chains of edge-sharing MO 6 (M = Ni, Mg or Co) octahedra, linked by FeO 5 and PO 4 polyhedra via vertices and edges to form a rigid skeleton. The K + ions are located in formed tunnels. DTA showed that KNi has a congruent melting at 941°C, whereas KMg-LT and KCo-LT undergo irreversible phase transitions from P2 1 /c to different high-temperature structures with the C2/c symmetry. IR absorption bands are assigned to different vibrations of the PO 4 tetrahedron.

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“…Recently, M.M. Yatskin et al have reported the formation of three new compounds: KMg 0.09 Fe 1.91 (PO 4 ) 2 [ 9 ] and KM II Fe(PO 4 ) 2 (M II = Co, Ni) [ 10 ]. In addition, the structural characterization revealed that the first compound was isotypic with KM II Fe(PO 4 ) 2 (M II = Cu, Fe) [ 8,11 ].…”

Section: Introductionmentioning

confidence: 99%

CRYSTAL STRUCTURE AND THERMAL STABILITY OF NEW IRON PHOSPHATES KMFe(PO4)2 (M = Ni, Mg, and Co)

2015

JSC

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Three isostructural iron monophosphates KNiFe(PO 4) 2 (KNi), KMgFe(PO 4) 2 (KMg-LT, where LT means ″low-temperature stable phase″), and KCoFe(PO 4) 2 (KCo-LT) are synthesized and structurally characterized from X-ray diffraction data. They crystallize in the monoclinic system with the space group P2 1 /c. Their structures have in common a three-dimensional framework, built up by infinite zigzag chains of edge-sharing MO 6 (M = Ni, Mg or Co) octahedra, linked by FeO 5 and PO 4 polyhedra via vertices and edges to form a rigid skeleton. The K + ions are located in formed tunnels. DTA showed that KNi has a congruent melting at 941 °C, whereas KMg-LT and KCo-LT undergo irreversible phase transitions from P2 1 /c to different high-temperature structures with the C2/c symmetry. IR absorption bands are assigned to different vibrations of the PO 4 tetrahedron.

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KMg_0.09Fe_1.91(PO₄)₂

Cited by 5 publications

References 5 publications

RbCuFe(PO₄)₂

RbCuFe(PO₄)₂

Crystal structure and thermal stability of new iron phosphates KMFe(PO4)2 (M = Ni, Mg, and Co)

CRYSTAL STRUCTURE AND THERMAL STABILITY OF NEW IRON PHOSPHATES KMFe(PO4)2 (M = Ni, Mg, and Co)

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