New insight into the reduction of rhenates(VII) with hydrogen chloride and into the structure of the Re0C15- product

摘要

Rhenate(VII) anion is reduced by gaseous HCI to yield pentachloridooxidorhenate(VI) anion. Several pen tachloridooxidorhenate(VI) salts have been crystallized and the anion structure has been investigated in detail. The ReOC1_5- anion structure has been compared with the ReOC152 structure and conclusions con cerning the influence of the central atom d electrons number on the anion geometry have been drawn.