ISSN:
0044-2313
Keywords:
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
Newly obtained are KYO2 [a = 3.47, c = 18.6 Å; hexagonal-rhombohedric, α-NaFeO2 type], RbYO2 [a = 3.48, c = 19.5; hexagonal-rhombohedric, α-NaFeO2 type], CsYO2 [a = 3.52 Å, c = 13.65, Z = 2, hexagonal, β—RbScO2 type], CsScO2 [a = 17.42 Å, due to single crystal work cubic with Z = 64 formula units], CsInO2 [subcell: a = 4.44, c = 4.22 Å; tetragonal spacing, Z = 1] and CsTlO2 [a = 3.39, c = 20.8 Å, α-NaFeO2 type]. Due to DEBYE-SCHERRER photographs, CsInO2 and CsTlO2 probably exist both in two forms. All compounds but CsTlO2 (red) are colourless and very hygroscopic. The molar volumes of MeMO2 [Me = Li—Cs, M = Al, Ga, In, Tl, Sc, Y, Fe] depend characteristically on the structures.
Notes:
Neu dargestellt wurden KYO2 [a = 3,47, c = 18,6 Å; hexagonal-rhomboedrisch, α-NaFeO2-Typ], RbYO2 [a = 3, 48, c = 19, 5 Å; hexagonal-rhomboedrisch, α-NaFeO2-Typ], CsYO2 [a = 3, 52, c = 13, 65 Å, Z = 2, hexagonal, β—RbScO2-Typ], CsScO2 [a = 17,42 Å, nach Einkristallaufnahmen kubisch mit Z = 64 Formeleinheiten/Zelle], CsInO2 [Subzelle: a = 4, 44, c = 4,22 Å, tetragonale Metrik, Z = 1] und CsTlO2 [a = 3, 39, c = 20, 8 Å, α-NaFeO2-Typ]. Von CsInO2 und CsTlO2 existieren nach DEBYE-SCHERRER-Aufnahmen wahrscheinlich je 2 Formen. Alle Verbindungen sind farblos und sehr hygroskopisch, CsTlO2-Proben sehen jedoch rot aus. Die Molvolumina der Verbindungen MeMO2 [Me = Li—Cs, M = Al, Ga, In, Tl, Sc, Y, Fe] hängen charakteristisch von der Struktur ab.
Additional Material:
1 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/zaac.19683570408
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