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Syntheses and characterization of zero-dimensional molybdoantimonites, A2(Mo4Sb2O18) (A=Y, La, Nd, Sm, Gd and Dy)
β Scribed by G. Kalpana; K. Vidyasagar
- Publisher
- Elsevier Science
- Year
- 2007
- Tongue
- English
- Weight
- 472 KB
- Volume
- 180
- Category
- Article
- ISSN
- 0022-4596
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π SIMILAR VOLUMES
Nine new A 2 Mo 4 Sb 2 O 18 (AΒΌ Ce, Pr, Eu, Tb, Ho, Er, Tm, Yb, Lu) compounds have been synthesized by solid-state reactions. They are isostructural with six reported analogues of yttrium and other lanthanides and the monoclinic unit cell parameters of all fifteen of them vary linearly with the size
FTIR has been used to investigate structural and acidic modification carried out upon calcination of La-, Nd-, Sm-, Gd-and Dy-exchanged NaY zeolite. The introduction of RE cations brought about no significant changes in the structural region of the zeolites. However, in the hydroxyl region, a band r