Dear Researchers
I have confused about the value of the c-parameter in the three-layered structure Bi4Ti3O12. I used VASTA software to design the crystal structure as shown in the attached figure. I measured a, and b parameters and it shows the right values, but c it shows less than 32.8 Angstrom. Can anyone explain to me how it is reported in the literature and also after XRD- refinements I got the same approximate value (32.8 A). But who can I imagine that?
Please help me to resolve my confusion
Thank you in advance
Dear M. S. Alkathy thank you for your interesting technical question. Please have a look at the following relevant article:
Crystal structure of Bi4Ti3O12
Article Crystal structure of Bi4Ti3O12
According to this study, the compound has an "orthorhombic structure, space group B2cb, with a = 5.448(2), b = 5.411(2), c = 32,83(1) Å, and Z = 4"
Dear Alkathy,
as stated by Dr. Frank the space group is orthorhombic with Z=4. In Vesta it is pre defined a Celi range upon drawing, limiting the plane of view for so large cell parameter. In the preferences, choose a proper Celi range description to see it in whole size.
Best regards
WNM
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