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Research Paper | Chemistry | India | Volume 3 Issue 10, October 2014
Characterization of Thin Films of Mixed Complexes of Rare Earth, Mo and W ions
C. P. Gupta [4] | Lakshmi [495] | S. Shukla [4]
Abstract: The structure of new compound of the type [Pr (SH) (OH) 2H2O] has already been established in our earlier publication (JCGCM 2002). When aqueous solution of ammonium molybdate [NH4) 2 MoO4 2H2O] was mixed with Na2S 7H2O, yielded yellow solution due to reducing nature of sodium sulfide. Yellow solution, (NH4) 2 [MoO2 (H2O) 2] was mixed with green solution of the compound, [Pr (SH) (OH) 2H2O], a brownish red color solution [MoO2 (H2O) 2 Pr (SH) (OH) 2 H2O] 2- [NH4] 2+ was obtained which showed transition at 500 nm, intervalence Pr3+ Mo4+ band at 425 nm and a steep broad band from 850 to 950 nm due to H- bonding. When aqueous solution (NH4) 2 [ WO4 2H2O] was mixed with the compound [Pr (SH) (OH) 2 H2O] a green color solution [ WO2 (H2O) 2 Pr (SH) (OH) 2 H2O]2- was obtained which showed intervalence Pr3+ W 3+ band at 500 nm. On addition of an inert solvent CCl4, the steep broad band at 850-950 nm due to H- bonding disappeared, ascertaining the polymeric nature due to H- bonding of the compound. The structure of thin film of solutions was established by XRD pattern, IR spectra, SEM and TEM showed nearly spherical grains having average size 50-100 nm.
Keywords: Polymeric nature, spherical grains, XRD pattern, SEM and TEM
Edition: Volume 3 Issue 10, October 2014,
Pages: 857 - 860
Similar Articles with Keyword 'XRD pattern'
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Research Paper, Chemistry, Pakistan, Volume 3 Issue 9, September 2014
Pages: 2175 - 2178Synthesis and Characterization of Rare Earth Chelates (La3+, Pr3+, Nd3+, Eu3+and Tb2+) with Salicylate (4-aminosalicylic acid, 2- acetoxybenzoic acid)
Bushra Khan [6] | Shahana Ehsan [5] | Umbreen Ashraf [3]
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Research Paper, Chemistry, Iraq, Volume 3 Issue 11, November 2014
Pages: 2133 - 2138Modification of the Photocatalytic Activity of Zinc Oxide by Doping Silver
Amjed M. Odeh | Ahmed S. Ferhod | Abbas J. Lafta [3]