Calorimetric study of high-pressure polymorphs of Li2WO4 and Li2MoO4
β Scribed by Eiji Takayama-Muromachi; Alexandra Navrotsky; Shinobu Yamaoka
- Publisher
- Elsevier Science
- Year
- 1986
- Tongue
- English
- Weight
- 739 KB
- Volume
- 65
- Category
- Article
- ISSN
- 0022-4596
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Two polymorphs of Li 2 CuZrO 4 have been synthesized and their structures characterized by X-ray, neutron and electron diffraction. Both have novel types of ordered rock salt structure. b-Li 2 CuZrO 4 is tetragonal, a=4.165(1) ( A, c=9.418(1) ( A, I-4m2, Z=4, R I =5.9%; the four sets of octahedral s
Electronic structures of Moo2 (4d2) and molybdatc (4d") are calculated by the discrete-variational Xa method employing [hlo20101'F and [hl004]~-clusters. The calculations indicate that the hlo-0 bond is more covalent in the molybdatc than in hloO2. Lcvcl swucturcs for the valence band region arc in