ChemInform Abstract: Structure of Ferric Oxonium Bis(hydrogenphosphate), Fe(H3O)(HPO4)2.

Vencato, Ivo; Mattievich, E.; Moreira, L. F.; Mascarenhas, Yvonne Primerano

doi:10.1002/chin.198940016

Cited by 12 publications

(21 citation statements)

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“…KIn(HAsO 4 ) 2 is a further representative of the KSc(HAsO 4 ) 2 structure type (Schwendtner & Kolitsch, 2004a), which is also adopted by AgGa(HAsO 4 ) 2 and AgAl(HAsO 4 ) 2 (Schwendtner & Kolitsch, 2017c). The (H 3 O)Fe(HPO 4 ) 2 structure type (Vencato et al, 1989) is adopted by CsSc(HAsO 4 ) 2 (Schwendtner & Kolitsch, 2004b). Another modification of CsSc(HAsO 4 ) 2 crystallizes in the (NH 4 )Fe(HPO 4 ) 2 type (Yakubovich, 1993), in which also (NH 4 )Fe(HAsO 4 ) 2 crystallizes (Ouerfelli et al, 2014).…”

Section: Chemical Contextmentioning

confidence: 99%

“…The hydrogenphosphates KIn(HPO 4 ) 2 and RbIn(HPO 4 ) 2 (Filaretov et al, 2002b), which are the phosphate analogues of two of the title compounds, crystallize in the (NH 4 )In(HPO 4 ) 2 structure type (P2 1 /c; Filaretov et al, 2002a;Mao et al, 2002), for which no arsenate members were known prior to the present work. CsIn(HPO 4 ) 2 (Huang et al, 2004;Lesage et al, 2007) is known as two modifications, the (NH 4 )Fe(HPO 4 ) 2type (P1; Yakubovich, 1993) and the (H 3 O)Fe(HPO 4 ) 2 -type (P2 1 /c; Vencato et al, 1989). Both structure types are common among hydrogenphosphates, with eleven and seven members, respectively, and both have one arsenate representative each, viz.and -CsSc(HAsO 4 ) 2 (Schwendtner & Kolitsch, 2004).…”

Section: Chemical Contextmentioning

confidence: 99%

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MIn(HAsO₄)₂(M= K, Rb, Cs): three new hydrogenarsenates adopting two different structure types

Schwendtner

Kolitsch

2017

Acta Cryst E

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Potassium indium bis[hydrogen arsenate(V)], KIn(HAsO 4 ) 2 , rubidium indium bis[hydrogen arsenate(V)], RbIn(HAsO 4 ) 2 , and caesium indium bis[hydrogen arsenate(V)], CsIn(HAsO 4 ) 2 , were grown under mild hydrothermal conditions (T = 493 K, 7-8 d). KIn(HAsO 4 ) 2 adopts the KSc(HAsO 4 ) 2 structure type (space group C2/c), while RbIn(HAsO 4 ) 2 and CsIn(HAsO 4 ) 2 crystallize in the space group R3c and are the first arsenate representatives of the RbFe(HPO 4 ) 2 structure type. All three compounds have tetrahedral-octahedral framework topologies. The M + cations, located in voids of the respective framework, are slightly disordered in RbIn(HAsO 4 ) 2 . In KIn(HAsO 4 ) 2 , there is a second Katom position with a very low occupancy, which may suggest that the K atom can easily move in the channels extending along [101]. Chemical contextMetal arsenates often form tetrahedral-octahedral framework structures that frequently show potentially interesting properties, such as ion conductivity, ion exchange and catalytic properties (Masquelier et al., 1990(Masquelier et al., , 1994a(Masquelier et al., ,b, 1995(Masquelier et al., , 1996(Masquelier et al., , 1998Mesa et al., 2000;Ouerfelli et al., 2007a Ouerfelli et al., ,b, 2008 PintardScré pel et al., 1983;Rousse et al., 2013). In the course of a detailed study of the system M + -M 3+ -As-O-(H) by hydrothermal syntheses, a large variety of new arsenate(V) compounds and structure types were found (Kolitsch, 2004; Schwendtner, 2006; Schwendtner & Kolitsch, 2004a,b, 2005,b,c,d, 2017a.The three new title compounds belong to the family of hydrogenarsenate compounds with the general formula M + M 3+ (HAsO 4 ) 2 . Including the three compounds reported here, nine compounds with this general formula are known. They crystallize in four different structure types. KIn(HAsO 4 ) 2 is a further representative of the KSc(HAsO 4 ) 2 structure type (Schwendtner & Kolitsch, 2004a), which is also adopted by AgGa(HAsO 4 ) 2 and AgAl(HAsO 4 ) 2 (Schwendtner & Kolitsch, 2017c (Schwendtner & Kolitsch, 2017c). The asymmetric unit contains one K, one In, one As, one H and four O atoms (Fig. 1a). The slightly distorted InO 6 octahedra share corners with six HAsO 4 tetrahedra, thus forming a three-dimensional anionic framework with narrow channels parallel to [110] and [101] (Fig. 2a,b) which host the K atoms. There are two K-atom positions (K1 and K2), at a distance of 2.653 (15) Å from each other. The K1 position is located on an inversion centre and has a refined occupancy of 0.976 (2), while K2, which lies between two K1 positions, is located on a twofold axis (like the In atom) and has a refined occupancy of 0.024 (2). Both K-atom positions show a [4 + 4]-coordination with average K-O bond lengths of 2.949 and 3.016 Å for K1 and K2, respectively (Table 1). This is slightly longer than the reported average K-O bond length for lations after Gagné & Hawthorne (2015) show bond-valence sums (BVSs) of 0.99 valence units (v.u.) for K1 and 0.85 v.u. for K2, indicating an 'underbonded' charact...

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Section: Chemical Contextmentioning

confidence: 99%

Section: Chemical Contextmentioning

confidence: 99%

MIn(HAsO₄)₂(M= K, Rb, Cs): three new hydrogenarsenates adopting two different structure types

Schwendtner

Kolitsch

2017

Acta Cryst E

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“…The occupancy factor for the two sites is respectively equal to 0.39 and 0.08. 11 We have recently reported an analysis of the Mossbauer spectrum of lipscombite which is in accordance with this structure determination.' The spectrum of lipscombite has been fitted with four doublets corresponding to two ferric and two ferrous species (Table 5, Figure 3a).…”

Section: Discussionmentioning

confidence: 50%

Synthesis and Study by Moessbauer Spectroscopy of Lipscombite (Fe3+2Fe2+(PO4)2(OH)2) Partially Substituted by Manganese, Cobalt, and Chromium Cations

Rouzies¹,

Moral²,

Millet³

1995

J. Phys. Chem.

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Recent investigations claimed the use of lipscombite, Fe3+2Fe2+(P04)2(0H)2, as a catalyst for the oxidative dehydrogenation of isobutyric acid. In the present study, the synthesis and characterization by Mossbauer spectroscopy of Mn-, Co-, and Cr-substituted lipscombites are described. It is found that lipscombite substituted by lo%, 20%, and 30% of cobalt and manganese could be prepared while the substitution by chromium did not exced 20%. Mossbauer spectroscopy along with other physicochemical characterization techniques showed that [Fe3+2-,M2+,]Fe2+(P04)2-,(HP04),(OH)2 (M = Mn or Co) type solid solutions were obtained instead of Fe3+2[Fe2+~-,M2+,](PO4)2(OH)2 solid solutions which exist for natural compounds. Chromium-substituted compounds belonged to a [Fe3+2-xCr3+,]Fe2+(P04)2(OH)2 limited solid solution ( x 0.3). Mn2+, Co2+, and Cr3+ were found to preferentially occupy in the lipscombite structure two ferric cations sites Fe(3)b and Fe(3)a, which differ by their cationic surrounding.

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“…With 2.592(2) and 2.589(2) Å for compounds 1 and 2 , respectively, they are almost as short as in α‐Fe (2.482 Å6) or γ‐Fe (2.584 Å7), which suggests a high probability of electron transfer along the chain and anisotropic conductive properties. Unusually short Fe–Fe distances in the range 2.44–2.70 Å are reported for a few other phosphate compounds: Fe 3 (PO 4 ) 2 (OH) 2 (lipscombite),8 Fe 5 (PO 4 ) 3 (OH) 5 (rockbridgeite),9 and β‐Fe 2 O(PO 4 ) 10…”

Section: Resultsmentioning

confidence: 99%

“…-12.30 e Å -3 for the Cl analogue and max. 8.24 e Å -3 , min. The magnetic susceptibility of a powder sample of Fe 7 P 3 Sb 3 O 18 Cl 3 (ca.…”

Section: Discussionmentioning

confidence: 99%

Crystalline Iron Oxohalide Nanotube Pea Pods

2012

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ChemInform Abstract: Structure of Ferric Oxonium Bis(hydrogenphosphate), Fe(H3O)(HPO4)2.

Cited by 12 publications

References 1 publication

MIn(HAsO₄)₂(M= K, Rb, Cs): three new hydrogenarsenates adopting two different structure types

MIn(HAsO₄)₂(M= K, Rb, Cs): three new hydrogenarsenates adopting two different structure types

Synthesis and Study by Moessbauer Spectroscopy of Lipscombite (Fe3+2Fe2+(PO4)2(OH)2) Partially Substituted by Manganese, Cobalt, and Chromium Cations

Crystalline Iron Oxohalide Nanotube Pea Pods

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ChemInform Abstract: Structure of Ferric Oxonium Bis(hydrogenphosphate), Fe(H3O)(HPO4)2.

Cited by 12 publications

References 1 publication

MIn(HAsO4)2(M= K, Rb, Cs): three new hydrogenarsenates adopting two different structure types

MIn(HAsO4)2(M= K, Rb, Cs): three new hydrogenarsenates adopting two different structure types

Synthesis and Study by Moessbauer Spectroscopy of Lipscombite (Fe3+2Fe2+(PO4)2(OH)2) Partially Substituted by Manganese, Cobalt, and Chromium Cations

Crystalline Iron Oxohalide Nanotube Pea Pods

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Product

Resources

About

MIn(HAsO₄)₂(M= K, Rb, Cs): three new hydrogenarsenates adopting two different structure types

MIn(HAsO₄)₂(M= K, Rb, Cs): three new hydrogenarsenates adopting two different structure types