Abstract
Two new lead perrhenate compounds, [Pb2(ReO4)2(SeO3)H2O]H2O (1) and [Pb2(ReO4)2(HPO3)H2O]H2O (2), were prepared by adding selenious or phosphorous acid to boiling concentrated solutions of lead perrhenate. Both compounds adopt the same crystal structure illustrating similar structural impact of lone pair and nonpolar hydrogen bond on one-sided coordination and formation of loose structural architectures. The crystal structure of 1 and 2, which corresponds to a novel structure type, consists of lead-perrhenate double layers interconnected by the selenite or phosphite anions into framework; the channels are filled by water molecules. We briefly discuss the chemistry of compounds containing both regular-shaped and ‘lone-pair’ or ‘inert bond’ anions.
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