A nonpolar bond to hydrogen vs. lone pair: Incorporation of HPO32− and SeEO32− into a lead perrhenate framework

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. Novel selenite and phosphite compounds adopt the same crystal structure type illustrating similar structural impact of lone pair and nonpolar hydrogen bond. [Display omitted] •Two new lead perrhenate compounds with selenite and phosphite anions were prepared.•Both compounds adopt the same crystal structure illustrating similar structural impact of lone pair and nonpolar hydrogen bond.•The chemistry of compounds containing both regular-shaped and ‘lone-pair’ or ‘inert bond’ anions is discussed.