Thermochemistry of caesium iodide and caesium chromate
✍ Scribed by V. Venugopal; N.K. Shukla; V. Sundaresh; K.N. Roy; R. Prasad; D.D. Sood
- Publisher
- Elsevier Science
- Year
- 1986
- Tongue
- English
- Weight
- 273 KB
- Volume
- 18
- Category
- Article
- ISSN
- 0021-9614
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CsBr- and CsI-kaolinite intercalation complexes were synthesized by gradually heating caesium halide disks of the DMSO-kaolinite intermediate up to 330 degreesC. Infrared spectroscopy revealed two types of complexes with the caesium salts: almost nonhydrous, obtained during thermal treatment of the
The title compound, Cs[Cr(C 6 H 7 NO 6 ) 2 ]Á2H 2 O, behaves like a three-dimensional coordination polymer due to a network of hydrogen-bonding interactions and coordination of the caesium cation by eight O atoms. The Cs-O contact distances vary between 2.955 (3) and 3.322 (2) A ˚.
In the title compound, Cs[Cr(C 6 H 8 N 2 O 5 ) 2 ]Á2H 2 O, important geometric parameters are Cr-N = 2.090 (2) and 2.096 (2) A ˚, Cr-O = 1.950 (2), 1.953 (2), 1.957 (2) and 1.962 (2) A ˚, O-Cr-O = 179.00 (11) and 179.18 (10) , and N-Cr-N = 179.33 (9) .