Structure and crystal chemistry of fluorite-related Bi38Mo7O78 from single crystal X-ray diffraction and ab initio calculations
✍ Scribed by Neeraj Sharma; René B. Macquart; Mogens Christensen; Maxim Avdeev; Yu-Sheng Chen; Chris D. Ling
- Publisher
- Elsevier Science
- Year
- 2009
- Tongue
- English
- Weight
- 503 KB
- Volume
- 182
- Category
- Article
- ISSN
- 0022-4596
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The structure of La 2 Mo 4 O 15 has been determined from both high resolution X-ray and neutron powder di4raction data. This molybdate crystallizes in a monoclinic space group P2 1 /n with cell parameters a )2( 7530.9؍ A > , b ؍ 12.7737(2) A > , c ؍ 10.6408(2) A > , ؍ 90.2491(6)3. The struct
´lez 1 ) (a), Ch. Power (a), E. Caldero ´n (a), F. Capet (b), and A. Mun ˜oz (c)
A; a ¼ 116:779ð2Þ; b ¼ 96:089ð3Þ; g ¼ 84:000ð3Þ1; R F ¼ 0:033: The disulphate anions are essentially eclipsed. All three structures can be described as dichromate-like, where the alkali cations coordinate oxygens of the isolated disulphate groups in three-dimensional networks. The K-O and Na-O coord