The Synthesis and Characterization of a New Manganese Phosphate Templated by Piperazine

Kongshaug, Kjell Ove; Fjellvåg, Helmer; Lillerud, Karl Petter

doi:10.1006/jssc.2000.8954

Cited by 26 publications

(18 citation statements)

References 24 publications

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“…The magnetic susceptibility increases strongly below 50 K, which indicates onset of long-range antiferromagnetic order. 17 The Weiss constant of -53.17 K indicates rather weak antiferromagnetic interactions between the Mn 2＋ , leading us to propose that the material is ferrimagnetic. From Figure 6, a maximum in χ m (T) does not occur between 2.5 and 4 K as other layered manganese(II) phosphate does.…”

Section: Magnetic Properties Of the Productmentioning

confidence: 98%

Synthesis of Layered Sodium Manganese Phosphate via Low‐heating Solid State Reaction and Its Properties

Liu³

et al. 2010

Chin. J. Chem.

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The layered nanocrystalline sodium manganese phosphate was synthesized by low-heating solid state reaction using MnSO 4 •H 2 O and Na 3 PO 4 •12H 2 O as raw materials. The resulting sodium manganese phosphate and its calcined products were characterized using element analysis, thermogravimetry and differential thermal analyses (TG/DTA), Fourier transform IR (FT-IR), X-ray powder diffraction (XRD), scanning electron microscopy (SEM), ultraviolet-visible (UV-Vis) absorption spectroscopy, and magnetic susceptibility. The results showed that the product obtained at 70 ℃ for 3 h, NaMnPO 4 •3H 2 O, was a layered compound, and its crystallite size and interlayer distance were 27 nm and 1.124 nm, respectively. The thermal process of NaMnPO 4 •3H 2 O between room temperature and 700 ℃ experienced three steps, the dehydration of the one adsorption water at first, and then dehydration of the two crystal waters, at last crystallization of NaMnPO 4 . Magnetic susceptibility measurements of NaMnPO 4 • 3H 2 O from room temperature to 2.5 K point to ferrimagnetic ordering at T N -35 K.

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Section: Magnetic Properties Of the Productmentioning

confidence: 98%

Synthesis of Layered Sodium Manganese Phosphate via Low‐heating Solid State Reaction and Its Properties

Liu³

et al. 2010

Chin. J. Chem.

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“…108 The structure is created from a building unit defined as a triangular cluster of three octahedral Mn(II) centers bridged by a central fluorine atom and three phosphate groups. 109 Each cluster is composed of two connected octahedral Mn(II) centers through two oxygen bridges, which are individually linked to one octahedral and one tetragonal bipyramidal Mn(II) via four oxygen atoms.…”

Section: Iron Phosphatesmentioning

confidence: 99%

Old materials with new tricks: multifunctional open-framework materials

2007

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The literature on open-framework materials has shown numerous examples of porous solids with additional structural, chemical, or physical properties. These materials show promise for applications ranging from sensing, catalysis and separation to multifunctional materials. This critical review provides an up-to-date survey to this new generation of multifunctional open-framework solids. For this, a detailed revision of the different examples so far reported will be presented, classified into five different sections: magnetic, chiral, conducting, optical, and labile open-frameworks for sensing applications. (413 references.)

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“…The effective magnetic moment eff calculated from the Curie constant is equal to 6.08 B , this value being close to the spin only value of 5.92 B expected for a high-spin Mn 2+ (d 5 ) ion. The Weiss constant of −60.77 K indicates a predominant antiferromagnetic interaction between Mn 2+ , leading us to propose that the material is ferrimagnetic [10,[13][14][15].…”

Section: Magnetic Properties Of Kmnpo 4 ·H 2 Omentioning

confidence: 98%

Preparation via solid-state reaction at room temperature and characterization of layered nanocrystalline KMnPO4·H2O

Liao

et al. 2009

Journal of Alloys and Compounds

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The Synthesis and Characterization of a New Manganese Phosphate Templated by Piperazine

Cited by 26 publications

References 24 publications

Synthesis of Layered Sodium Manganese Phosphate via Low‐heating Solid State Reaction and Its Properties

Synthesis of Layered Sodium Manganese Phosphate via Low‐heating Solid State Reaction and Its Properties

Old materials with new tricks: multifunctional open-framework materials

Preparation via solid-state reaction at room temperature and characterization of layered nanocrystalline KMnPO4·H2O

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