ISSN:
0044-2313
Keywords:
Iodocuprates(I)
;
solvated cations
;
crystal structure
;
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
Synthesis and Structure Investigations of Iodocuprates(I). XV Iodocuprate(I) with Solvated Cations: [Li(CH3CN)4]1∞[Cu2I3] and [Mg{(CH3)2CO}6][Cu2I4][Li(CH3CN)4]1∞[Cu2I3] 1 and [Mg((CH3)2CO)6][Cu2I4] 2 were prepared by reactions of CuI with LiI in acetonitrile and of CuI with MgI2 in acetone. 1 crystallizes orthorhombic, Pnma, a = 552.7(2), b = 1258.8(8), c = 2516(1) pm, z = 4. [Li(CH3CN)4]+ cations are located between rod packings of CuI4 tetrahedra double chains 1∞ [(CuI2/2I2/4)2]- parallel to the axis. Short intermolecular anion/cation contacts were observed. The crystal structure of 2 (monoclinic, P21/n, a = 1840(2), b = 1059.2(2), c = 1879(2)pm, β = 112.94(4)°, z = 4) is built up by [Mg((CH3)2CO)6]2+ cations forming a simple hexagonal sphere packing. The binuclear anions [Cu2I4]2- occupy holes in the trigonal prismatic channels formed by the cations.
Notes:
[Li(CH3CN)4]1∞[Cu2I3] 1 und [Mg((CH3)2CO)6][Cu2I4] 2 wurden durch Umsetzung von CuI mit LiI in Acetonitril bzw. von CuI mit MgI2 in Aceton dargestellt. 1 kristallisiert orthorhombisch, Pnma, a = 552,7(2), b = 1258,8(8), c = 2516(1) pm, z = 4. Zwischen Stabpackungen von CuI4-Tetraederdoppelketten 1∞[(CuI2/2I2/4)2]- parallel zur a-Achse sind [Li(CH3CN)4]+ -Kationen unter Ausbildung kurzer, intermolekularer Anionen-Kationen-Kontakte eingelagert. In der Kristallstruktur von 2 (monoklin, P21/n, a = 1840(2), b = 1059,2(2), c = 1879(2) pm, β = 112,94(4)°, z = 4) sind [Mg((CH3)2CO)6]2+ -Kationen in der Art einer hexagonal einfachen Kugelpackung angeordnet. In die dabei gebildeten, trigonal prismatischen Kanäle sind die zweikernigen Anionen [Cu2I4]2- eingebaut.
Additional Material:
3 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/zaac.19926120109
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