New Aluminate with a Tetrahedral Structure Closely Related to the C 84 Fullerene
β Scribed by Boudin, S.; Mellenne, B.; Retoux, R.; Hervieu, M.; Raveau, B.
- Book ID
- 126159213
- Publisher
- American Chemical Society
- Year
- 2004
- Tongue
- English
- Weight
- 221 KB
- Volume
- 43
- Category
- Article
- ISSN
- 0020-1669
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π SIMILAR VOLUMES
The structure of the cuprate \(\mathrm{Nd}_{2} \mathrm{Ba}_{4} \mathrm{Cu}_{2} \mathrm{O}_{4}\) has been determined using both \(\mathrm{X}\)-ray powder diffraction and high resolution electron microscopy. The compound crystallizes in the space group \(P \overline{4} n 2\) with \(a=12.072, c=3.874 \
The average bcc structure of \(\mathrm{Bi}_{3} \mathrm{BaO}_{5.5}(a=4.3822(2) \AA)\) has been determined by powder neutron diffraction. The calculations performed in the space group \(I m 3 m\) have slown that the \(B i\) and Ba atoms are statistically distributed over the \(2(a)\) sites \((0,0,0)\)