Halogen oxofluorides halogens

This section considers compounds in which X (Cl, Br or I) is bonded to both O and F, i.e. F XOm. Oxofluorides -OF and peroxofluorides -OOF have already been discussed (p. 638) and halogen derivatives of oxoacids, containing -OX bonds are treated in the following section (p. 883). 

Of the rare earth compounds with halogen-containing oxoanions, the perbro-mates have not yet been prepared and the chlorites and chlorates have been studied only sporadically the other bromates and the iodates, perchlorates, and periodates are widely discussed in the literature. A comprehensive review on the oxohalogen compounds of Cl, Br, and I with the rare earths has appeared in the late 1970 s (Gmelin, 1977, 1978). The oxofluorides have been discussed in an earlier volume (Gmelin, 1976) only the ROF and related types of compounds are known and they fall outside the scope of this review. The TG and DTA data on rare earth perchlorates and iodates are discussed in Solomosi s comprehensive book (1977) on the structure and stability of solid halogen oxoacid compounds however, many important papers have been published since its appearance. 

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