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2007 | 5 | 2 | 536-545
Tytuł artykułu

Synthesis, characterization and magnetic investigation of (NH4)0.5Mn1.25(H2O)2[BP2O8]·0.5H2O

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
A new borophosphate compound with the composition (NH4)χ Mn((3−χ)/2)(H2O)2 [BP2O8]·(1−x)H2O was prepared under mild hydrothermal conditions and characterized by X-ray powder diffraction (XRD) and Fourier Transform Infrared Spectroscopy (FTIR) methods. The title compound was synthesized from MnCl2·2H2O, H3BO3, and (NH4)2HPO4 with variable molar ratios by heating at 180 °C for 7 days in an autoclave. The X-ray diffraction data of the water insoluble polycrystalline powder was indexed using the TREOR program in hexagonal system with the unit cell parameters of a = 9.5104, c = 15.7108 Å, Z = 6 and the space group P65 (No.176). (NH4)χ Mn((3−χ)/2)(H2O)2 [BP2O8]·(1−x)H2O is isostructural with (NH4)χ M ((3−χ)2)/II (H2O)2 [BP2O8]·(1−x)H2O (MII = Co, Cd, Mg; x = 0.5–1). Its unit cell parameters and hkl values were in good agreement with the other isostructural compounds. This is the first report presenting both the synthetic details and the indexed X-ray powder diffraction pattern of this compound along with the characterization by FTIR, thermal gravimetric analysis, scanning electron microscopy and EPR. [...]
Wydawca

Czasopismo
Rocznik
Tom
5
Numer
2
Strony
536-545
Opis fizyczny
Daty
wydano
2007-06-01
online
2007-01-23
Twórcy
autor
  • Department of Chemistry, Fatih University, B.Çekmece, 34500, Istanbul, Turkey
autor
  • Department of Chemistry, Fatih University, B.Çekmece, 34500, Istanbul, Turkey, hbaykal@fatih.edu.tr
autor
  • Department of Chemistry and Biochemistry, University of California, Santa Barbara, CA, 93106, USA
autor
  • Department of Physics, Fatih University, B.Çekmece, 34500, Istanbul, Turkey
Bibliografia
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  • [6] A. Yilmaz, L. Tatar Yildirim, X. Bu, M. Kizilyalli and G.D. Stucky: “New Zeotype Borophosphates with Chiral Tetrahedral Topology: (H)0.5M1.25(H2O)1.5[BP2O8]·H2O (M= Co(II) and Mn(II)”, Cryst. Res. Technol., Vol. 40(6), (2005), pp. 579–585. http://dx.doi.org/10.1002/crat.200410386
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  • [20] R. Kniep, H.G. Will, I. Boy and C. Röhr: “61 Helices from Tetrahedral Ribbons 1∞ [BP(O 83−]: Isostructural Borophosphates MIMII(H2O)2[BP2O8] · H2O (MI = Na, K; MII = Mg, Mn, Fe, Co, Ni, Zn) and Their Dehydration to Microporous Phases MIMII(H2O)[BP2O8] (p 1013–1014)”, Angew. Chem. Int. Ed. Engl., Vol. 36(9), (1997), pp. 1013–1014. http://dx.doi.org/10.1002/anie.199710131[Crossref]
  • [21] A. Yilmaz, X. Bu, M. Kizilyalli and G.D. Stucky: “Fe(H2O)2BP2O8·H2O, a First Zeotype Ferriborophosphate with Chiral Tetrahedral Framework Topology”, Chem. Mater., Vol. 12, (2000), pp. 3243–3245. http://dx.doi.org/10.1021/cm001082t[Crossref]
  • [22] G. Schäfer, W. Carrillo-Cabrera, W. Schnelle, H. Borrmann and R. Kniep: “Synthesis and Crystal Structure of {(NH4)χ Co((3−χ)/2)}(H2O)2[BP2O8] · (1 − χ) H2O (χ ∼ 0.5)”, Z. Anorg. Allg. Chem., Vol. 628, (2002), pp. 289–294. http://dx.doi.org/10.1002/1521-3749(200201)628:1<289::AID-ZAAC289>3.0.CO;2-H
  • [23] A. Baykal and M. Kizilyalli: “X-ray powder diffraction and IR study of NaMg(H2O)2[BP2O8] · H2O and NH4Mg(H2O)2[BP2O8] · H2O”, J. Mater. Sci., Vol. 35, (2000), pp. 4621–6426. http://dx.doi.org/10.1023/A:1004818132238[Crossref]
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  • [27] A. Baykal and M. Kizilyalli: “Synthesis and Characterisation of Anhydrous Magnesium Phosphate Mg3(PO4)2”, Turk. J. Chem., Vol. 21(4), (1997), pp. 394–400.
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  • [30] Y. Köseoǧlu, F. Yildiz, J.V. Yakhmi, J. Qin, X. Chen and B. Aktas: “EPR Studies on BEDT-TTF Intercalated MnPS3 Molecular Magnet”, J. Magn. Magn. Mater., Vol. 416–418, (2003), pp. 258–259.
Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.-psjd-doi-10_2478_s11532-007-0006-z
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