Abstract
Alkali and alkaline earth metal fluorides, hydrogen fluorides and complex fluorides have been prepared by the reaction of the corresponding metal chloride, oxide and carbonate with pyridinium poly(hydrogen fluoride) at room temperature. The resulting compounds have been characterized by chemical analysis, IR and NMR ( 1H, 13C, 19F) spectroscopy and XRD methods. The interesting feature is the formation of normal fluorides by lithium, calcium and magnesium, while sodium, potassium, rubidium, caesium, strontium and barium form fluoride complexes with HF, and beryllium gives rise to a pyridinium tetrafluoroberyllate salt. This salt has been synthesized and characterized for the first time.
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