Pb(ReO4)2(C2H6O2)1.5: A New Contribution to the Crystal Chemistry of Perrhenates

Abstract

AbstractThe title compound Pb(ReO4)2(C2H6O2)1.5 was prepared by recrystallization of the anhydrous lead perrhenate in ethane‐1,2‐diol (ethylene glycol). The colorless compound crystallizes in the monoclinic space group P21/n (No. 14) with four formula units per unit cell a = 12.668(1) Å, b = 7.572(1) Å, c = 13.263(1) Å, β = 110.216(3)°. The lead ion is nine fold coordinated in a spatial arrangement described as a capped cubic antiprism. The coordination polyhedra are interconnected by [ReO4] units, building a two dimensional framework, which are bridged by ethylene glycol molecules generating a tridimensional network. The compound loses the ethane‐1,2‐diol molecules in two steps at temperatures below 450 K and decomposes at 800 K.