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Crystal structure of Pb3(IO4(OH)2)2.


ABSTRACT: The structure of the title compound, trilead(II) bis-[di-hydroxido-tetra-oxido-iodate(VII)], was determined from a crystal twinned by non-merohedry with two twin domains present [twin fraction 0.73?(1):0.27?(1)]. It contains three Pb(2+) cations and two IO4(OH)2 (3-) anions in the asymmetric unit. Each of the Pb(2+) cations is surrounded by eight O atoms (cut-off value = 3.1?Å) in the form of a distorted polyhedron. The octa-hedral IO4(OH)2 (3-) anions are arranged in rows extending parallel to [021], forming a distorted hexa-gonal rod packing. The cations and anions are linked into a framework structure. Although H-atom positions could not be located, O?O distances suggest medium-strength hydrogen-bonding inter-actions between the IO4(OH)2 octa-hedra, further consolidating the crystal packing.

SUBMITTER: Weil M 

PROVIDER: S-EPMC4120626 | biostudies-literature | 2014 Jul

REPOSITORIES: biostudies-literature

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Crystal structure of Pb3(IO4(OH)2)2.

Weil Matthias M  

Acta crystallographica. Section E, Structure reports online 20140623 Pt 7


The structure of the title compound, trilead(II) bis-[di-hydroxido-tetra-oxido-iodate(VII)], was determined from a crystal twinned by non-merohedry with two twin domains present [twin fraction 0.73 (1):0.27 (1)]. It contains three Pb(2+) cations and two IO4(OH)2 (3-) anions in the asymmetric unit. Each of the Pb(2+) cations is surrounded by eight O atoms (cut-off value = 3.1 Å) in the form of a distorted polyhedron. The octa-hedral IO4(OH)2 (3-) anions are arranged in rows extending parallel to  ...[more]

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