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EDS and TEM Study of the Family of Compounds with a Structure Based on [Bi12O14]∞ Columns in the Bi2O3–MoO3 Binary System

✍ Scribed by Marielle Huvé; Rose Noëlle Vannier; Gaëtan Mairesse

Publisher
Elsevier Science
Year
2000
Tongue
English
Weight
687 KB
Volume
149
Category
Article
ISSN
0022-4596

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✦ Synopsis

The family of compounds with a structure based on [Bi 12 O 14 ] columns in the Bi 2 O 3 +MoO 3 binary system was analyzed by EDS and studied by TEM. These observations con5rm that this solid solution type is limited within the range 2.64Bi/Mo42.8. The room temperature Bi 26 Mo 10 O 69 triclinic polymorph (Bi/ Mo ‫؍‬ 2.6) clearly di4ers from the monoclinic ones (Bi 26 Mo 10 O 69 at T > 3103C and Bi 26 Mo 9 6 Bi 0 4 O 68.4 ) by the doubling of the a period and the vanishing of a c glide plane.

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[Bi12O14E12]nColumns and Lone PairsEin Bi13Mo4VO34E13: Synthesis, Crystal Structure, and Chemistry of the Bi2O3–MoO3–V2O5System
✍ Renée Enjalbert; Georg Hasselmann; Jean Galy 📂 Article 📅 1997 🏛 Elsevier Science 🌐 English ⚖ 412 KB

A new phase, Bi 13 Mo 4 VO 34 E 13 (E: Bi(III) lone pair) was found in the Bi 2 O 3 -MoO 3 -V 2 O 5 system and its formula determined via single crystal analysis and confirmed by solid state synthesis. It crystallizes in the monoclinic system, space group P2/c, with cell parameters a ‫؍‬ 11.652(7) A