Untersuchungen an Polyhalogeniden, XXXVII [1]. Heptaiodide(3-) von Amminkomplexen des Chroms und Cobalts: Hexamminchrom(III)heptaiodid [Cr(NH3)6](I3)(I4) und die Tri-μ-hydroxo-bis[metall(III)-triammin]heptaiodide [(NH3)3 M(OH)3M(NH3)3](I3)2I mit M = Co, Cr / Studies o f Polyhalides, XXXVII [1]. Heptaiodides(3-) of Ammine Complexes of Chromium and Cobalt: Hexamminechromium(III) heptaiodide [Cr(NH3)6](I3)(I4) and the Tri-μ-hydroxo-bis[metal(III)-triammine] heptaiodides [(NH3)3M(OH)3M(NH3)3](I3)2I
The new compounds [Cr(NH ](I )(I ) and [(NH M(OH) M(NH ](I I with M = Cr, Co have been prepared by the reaction of [M(NH ]X (M = Cr, Co; X = Cl, I, NO ), KI, and I in water under controlled stoichiometric and pH conditions. The first compound is isotypic with the cobalt compound of the same composit...
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Published in | Zeitschrift für Naturforschung. B, A journal of chemical sciences Vol. 53; no. 10; pp. 1127 - 1134 |
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Main Authors | , |
Format | Journal Article |
Language | English |
Published |
Verlag der Zeitschrift für Naturforschung
01.10.1998
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Subjects | |
Online Access | Get full text |
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Summary: | The new compounds [Cr(NH
](I
)(I
) and [(NH
M(OH)
M(NH
](I
I with M = Cr, Co have been prepared by the reaction of [M(NH
]X
(M = Cr, Co; X = Cl, I, NO
), KI, and I
in water under controlled stoichiometric and pH conditions. The first compound is isotypic with the cobalt compound of the same composition. It crystallizes in the monoclinic space group I
/m with a = 984.7(3), b = 786.6(1), c = 1330.1(3) pm, β = 95.34(2)° and Z = 2 and contains nearly octahedral cations [Cr(NH
, a linear triiodide ion I
and a tetraiodide ion I
. The two other compounds are isotypic. They crystallize in the orthorhombic space group Pnma with a = 2629.6( 14) / 2633.5(2), b = 798.3(11) / 797.3(1), c = 1127.6(7) / 1125.7( 1) pm and Z = 4 for Co / Cr respectively. The heptaiodide(3-) ion is broken into two triiodide ions and one iodide ion |
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ISSN: | 0932-0776 1865-7117 |
DOI: | 10.1515/znb-1998-1008 |