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Pb(ReO 4 ) 2 (C 2 H 6 O 2 ) 1.5 : A New Contribution to the Crystal Chemistry of Perrhenates
Author(s) -
Mujica Carlos,
Prado Marcia,
CardosoGil Raúl
Publication year - 2011
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.201100013
Subject(s) - monoclinic crystal system , molecule , crystallography , ethylene glycol , anhydrous , diol , chemistry , perrhenate , crystal structure , square antiprism , rhenium , inorganic chemistry , organic chemistry , oxygen atom
The title compound Pb(ReO 4 ) 2 (C 2 H 6 O 2 ) 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 P 2 1 / 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 [ReO 4 ] 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.