ISSN:
0044-2313
Keywords:
Tetrahydrogen mesoperiodate
;
preparation
;
crystal structure
;
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
Li2H4I2O10, the First TetrahydrogendimesoperiodateLi2H4I2O10 has been obtained as an intermediate during the dehydration of LiH4IO6 · H2O to LiIO4, for the first time. According to the results of an X-ray structure determination (monoclinic, P21/n, a = 533.98(4), b = 471.85(4), c = 1431.48(10) pm, β = 91.614(7)°, Z = 2, 726 diffractometer data, R = 0.056), Li2H4I2O10 contains the previously unknown tetrahydrogendimesoperiodate ion H4I2O102-, consisting of two edge-shared IO6 octahedra. They are connected with LiO6 octahedra via common edges and vertices. The crystals are non-merohedrally twinned along (100).
Notes:
Li2H4I2O10 wurde als Zwischenstufe während der Entwässerung von LiH4IO6 · H2O zu LiIO4 erstmals erhalten. Nach der Röntgenstrukturanalyse (monoklin, P21/n, a = 533,98(4), b = 471,85(4), c = 1431,48(10) pm, β = 91,614(7)°, Z = 2, 726 unabhängige Reflexe, R = 0,056) liegt das bisher unbekannte Tetrahydrogendimesoperiodatanion H4I2O102- in Form zweier kantenverknüpfter IO6-Oktaeder vor, die ihrerseits mit LiO6-Oktaedern kanten- und eckenverknüpft sind. Die Kristalle sind systematisch verzwillingt. Es handelt sich um monokline Ebenenzwillinge nach (100).
Additional Material:
4 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/zaac.19966221115
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