Abstract

Rabia Ahmad*, Jamshed Ali  and  Qamer Faisal

DOI : http://dx.doi.org/10.13005/OJC/310206

Claims to have produced the mixed halides of mercury are very old.  However, their stability or even their very existence was seriously questioned by Ammlung and Brill several decades back, on the basis of their study, in several solvents, of what was thought to be HgBrI.   The mixed halide HgClI was already known to be unstable.  On the basis of these facts, which were also lent some theoretical support, it was strongly conjectured that the mixed halides of mercury and similar elements, were expected to be unstable.  However, the matter does not seem to have received the attention it deserved. It was in this light that this study was taken up.  What has been thought to be HgClBr has been produced by several methods and HgBrI by one or rather two methods.  The product has been subjected to X-ray diffraction, FTIR and Raman studies.  Studies confined to the solid product are being reported here and only those results are being presented for which all the three techniques could be employed.   These studies show that a new product is indeed formed in most of these cases, but the product is not pure in any of these cases, although the impurity seems to be quite small in most of these cases.  This calls for having a thorough look at not only the mixed halides of the elements, but of all compounds claimed to be  like:

Mixed halides; impure product; d-values; FTIR Studies

[ View HTML Full Text]