Cesium ratio standard

We found that this calcined coke also forms an intercalation compound with cesium metal in which the (008) line at 2.98 A of the C8Cs lattice (10) is observable. In this synthesis, 0.844 g of coke (0.839 g (69.8 mmol) of C was reacted with 1.563 g (11.76 mmol) of Cs at 110 °C for 1 h. (Excess Cs was used as an internal standard for 133Cs-NMR experiments to be reported elsewhere.) A portion of this sample was quenched with water, rinsed, and dried, and the product was found to have the following empirical formula C72CsH10 503 8S 0 033. As in the case of the coke C8K-water products, cesium is observed in this product (12.52 wt %), and the H/O atomic ratio is >2. 

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