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Please use this identifier to cite or link to this item: http://eprint.iitd.ac.in/handle/2074/768

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dc.contributor.authorAsnani, Minakshi-
dc.contributor.authorSharma, Sanjeev-
dc.contributor.authorLofland, Samuel E-
dc.contributor.authorRamanujachary, Kandalam V-
dc.contributor.authorBuffat, Philippe A-
dc.contributor.authorRamanan, Arunachalam-
dc.date.accessioned2005-08-13T07:44:27Z-
dc.date.available2005-08-13T07:44:27Z-
dc.date.issued2005-
dc.identifier.citationEuropean Journal of Inorganic Chemistry, 2005 (2), 401-409en
dc.identifier.urihttp://eprint.iitd.ac.in/dspace/handle/2074/768-
dc.description.abstractThis paper reports a novel topotactic exchange reaction of the ethylenediammonium intercalated mixed-valent vanadyl phosphate, (H3NCH2CH2NH3)0.5[V4+ 0.45V5+ 0.55O2PO4- {P(OH)2}0.483], with monovalent cations at room temperature. Alkali metal ions and other monovalent cations (e.g. K+, Rb+, Tl+, NH4+) behave similarly, leading to intercalated layered vanadyl phosphates (basal spacing about 6.3−6.5A° ). The amount of cations incorporated between the layers is essentially dictated by the charge present on the layers (equivalent to the amount of V4+ present). The present approach has enabled us to obtain a new phase, Tl0.45VOPO4·0.33H2O, under ambient conditions. All the layered solids show low-temperature magnetic behaviour similar to hydrothermally synthesised products. Treatment with silver ions resulted in a new silver vanadium(V) phosphate Ag3.5VP1.5O8 [monoclinic; a = 22.557(4), b = 7.973(3), c = 12.430(3) A° and β = 112.26(2)°] coated with silver metal nanospheres (ca. 15 nm) which, on heating above 400 °C, yielded a 2:1 mixture of two thermodynamically stable phases, Ag2VO2PO4 and Ag3PO4.en
dc.format.extent373593 bytes-
dc.format.mimetypeapplication/pdf-
dc.language.isoenen
dc.subjectvanadiumen
dc.subjectintercalationen
dc.subjectdeintercalationen
dc.subjectphosphorusen
dc.subjectalkali metalsen
dc.subjectsilveren
dc.subjectthalliumen
dc.titleNovel topotactic conversion of an organically templated vanadyl phosphate framework into layered structuresen
dc.typeArticleen
Appears in Collections:Chemistry

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