ISSN:
0044-2313
Keywords:
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
New Oxocobaltates(IV): Cs2[CoO3] Rb2[CoO3] and K2[CoO3]The hithertoo unknown compounds K2CoO3, Rb2CoO3 and Cs2CoO3 (all black) crystallize according to single crystal investigations orthorhombic (D2h18—Cmca; K2CoO3: a = 5.749, b = 11.303, c = 12.632 Å; Rb2CoO3: a = 5.871, b = 11.816, c = 13.193 Å; Cs2CoO3: a = 6.011, b = 12.519, c = 13.763 Å). From the determination of crystal structure of Cs2CoO3 results, that similar to Rb2TiO3 there are∞1[CoO3] chains with Co4+ tetrahedrally coordinated by oxygen.
Notes:
Neu dargestellt wurden K2CoO3, Rb2CoO3 und Cs2CoO3 (alle schwarz); diese kristallisieren nach Einkristalldaten orthorhombisch (D2h18—Cmca; K2CoO3: a = 5,749, b = 11,303, c = 12,632 Å; Rb2CoO3: a = 5,871, b = 11,816, c = 13,193 Å; Cs2CoO3: a = 6,011, b = 12,519, c = 13,763 Å). Die Strukturbestimmung an Cs2CoO3 zeigt, daß, wie bei Rb2TiO3, ∞1[CoO3]-Zweiereinfachketten vorliegen, Co4+ also tetraedrisch von Sauerstoff koordiniert ist.
Additional Material:
2 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/zaac.19744080111
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