Oxides, Hydroxides, Sulphides, etc

UPS [He (I)] data for the suboxides CsnOj, [CsnOaJCsio, and [Csn03]Rb7 have been determined at 98 5K7 Extremely narrow oxygen 2p levels are observed (Table 4) as well as significant differences in the binding energies of the 5p levels of chemically different Cs atoms. The results are rationalized in terms of the structurally derived bonding models discussed above 

The standard enthalpy of formation of Li20,AH Li20,c,298.15 K) has been calculated to be (—597.9 0.3) klmoU in a determination of the enthalpy of reaction of LijO with H2O.  

An abortive attempted synthesis of Li(02) [and of Ca(02)2], involving the oxidation of LiOH [Ca(OH)2] in a low-pressure discharge, sustained in oxygen, has been reported the sole products of the reaction were Li202 (Ca02). 

The phase relationships between MOH (M = Li, Na, or K) and Ba(OH)2 have been elucidated. Although Ba ions cannot be inserted in the LiOH lattice, their penetration into those of NaOH and KOH is facile, the probability of insertion being greater with KOH. Conversely, the probability of insertion of alkali-metal cations into Ba(OH)2 is low. In all three systems, an intermediary, non-stoicheiometric phase with composition close to MOH,2Ba(OH)2 (M = Li, Na, or K) is formed.  

Alkali-metal polysulphides have been the subject of a number of recent publications. The central theme of most of these papers is the polysulphide anion hence the data will not be considered in detail in this Chapter. 

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