
TY  - JOUR
A1  - Rossell, HJ 
A1  - Leblanc, M 
A1  - Ferey, G 
A1  - Bevan, DJM 
A1  - Simpson, DJ 
A1  - Taylor, MR 
T1  - On the Crystal Structure of Bi<sub>2</sub>Te<sub>4</sub>O<sub>11</sub>
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1992
VL  - 45
IS  - 9
SP  - 1415
EP  - 1425
KW  - 
UR  - https://doi.org/10.1071/CH9921415 
N2  - Bi2Te4O11 is monoclinic, space group P21/n; the lattice parameters derived from a Guinier powder pattern ( Si standard) are: a = 6.9909(3), b = 7.9593(3), c = 18.8963(8) Å , &#946; = 95.176(3)º, Z = 4, V = 1047.15 Å. The structure was solved independently from both single-crystal X-ray data and a combination of X-ray and neutron powder data. It is an anion-deficient superstructure of fluorite in which can be recognized the ordered intergrowth of fluorite-type Bi2Te2O7 and rutile-type Te2O4. Lone-pair electrons are stereochemically active. 
ER  -

