Magnetic measurements on Tl x Cr 5 Se 8 (04x41) reveal that stoichiometric TlCr 5 Se 8 is a three-dimensional antiferromagnet with a NeH el temperature T N of about 55 K. In contrast, samples with a reduced Tl content show highly unusual magnetic properties that are without precedent in the literatu
✦ LIBER ✦
Evidences for the Formation of Chromium in the Unusual Oxidation State Cr(IV): I. Chemical Reactivity, Microhomogeneity, and Crystal Structures of the Nonstoichiometric Channel Compounds TlxCr5Se8(0 ≤x≤ 1)
✍ Scribed by W. Bensch; O. Helmer; C. Näther
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 405 KB
- Volume
- 127
- Category
- Article
- ISSN
- 0022-4596
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The X-ray photoemission core level spectra of TlCr 5 Se 8 and Tl 0 2 Cr 5 Se 8 de5nitely exclude the oxidation of Tl(I) to Tl(III) when Tl is removed using a topotactic redox reaction between TlCr 5 Se 8 and bromine in acetonitrile. Alterations are only observed for the multiplett structure of the C