ISSN:
0044-2313
Keywords:
Iodo-thiocyanato cuprate(I)
;
Iodo-thiocyanato argentate(I)
;
crystal structure
;
heterocubane type anions
;
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
Synthesis and Structure Investigations on Iodocuprates(I). XVII. Crystal Structures of Polymeric Iodo-thiocyanato Metallates(I) with Heterocubane-like Structure Units: [(C2H5)4N+]2∞3[Cu4I4(SCN)4/22-] · 2(CH3)2CO and [(C2H5)4N+]2∞2[Ag 4I4(SCN)4/22-] · (CH3)2COThe reaction of CuSCN and AgSCN with (C2H5)4NI in acetone results in the formation of new Iodothiocyanato cuprates(I) or argentates(I) with polymeric anion lattices and areas of holes in which the cations and solvent molecules are inserted.[(C2H5)4N+]2∞3[Cu 4I4(SCN)4/22-] · 2(CH3)2CO 1 crystallizes in the monoclinic space group P21 with a = 1205.7(1), b = 2489.1(3), c = 1238.0(1) pm; β = 93.04(1)°; V = 3710.1(8) 106 pm3; Z = 2. Two different, negatively charged heterocubane units [Cu4I4(SCN)4/22-] are three-dimensionally connected by 1,3-μ-thiocyanato ligands forming a crystal structure with hose-shaped channels where cations and acetone molecules are placed.[(C2H5)4N+]2∞2[Ag 4I4(SCN)4/22-] · (CH3)2CO 2 crystallizes in the orthorhombic space group C2221 with a = 1206.7(1), b = 1398.2(1), c = 2318.8(2) pm; V = 3912.4(7) · 106 pm3; Z = 8. In this compound 1,3-μ-thiocyanato-bridged heterocubane units [Ag4I4(SCN)4/22-] form a layer structure with channel-shaped cavities vertical to them. Within these hollows there is again place for the cations and acetone molecules.
Notes:
Umsetzungen von CuSCN und AgSCN mit Tetraethylammoniumiodid in Aceton führen zu neuartigen, Iodo-thiocyanato-cupraten(I) bzw. -argentaten(I) mit polymeren Anionengittern, in deren Hohlräumen Kationen und Lösungsmittelmoleküle Platz finden.[(C2H5)4N+]2∞3[Cu 4I4(SCN)4/22-] · 2(CH3)2CO 1 kristallisiert in der monoklinen Raumgruppe P21; a = 1205,7(1), b = 2489,1(3), c = 1238,0(1) pm; β = 93,04(1)°; V = 3710,1(8) 106 pm3; Z = 2. Die Kristallstruktur ist aus zwei unterschiedlichen, zweifach negativ geladenen Heterocuban-Einheiten [Cu4I4(SCN)4/22-] aufgebaut. Diese sind über 1,3-μ-Thiocyanat-Liganden dreidimensional vernetzt. Zwischen den eckenverknüpften Heterocuban-Einheiten verlaufen schlauchförmige Kanäle, in denen sich die Kationen und Lösungsmittelmoleküle (Aceton) befinden.[(C2H5)4N+]2∞2[Ag 4I4(SCN)4/22-] · (CH3)2CO 2 kristallisiert in der orthorhombischen Raumgruppe C2221 mit den Zellparametern a = 1206,7(1), b = 1398,2(1), c = 2318,8(2) pm; V = 3912,4(7)· 106 pm3; Z = 8. In dieser Verbindung bilden 1,3-μ-SCN-verbrückte Heterocuban-Gruppen [Ag4I4(SCN)4/22-] polymere Schichten mit senkrecht dazu angeordneten, kanalförmigen Hohlräumen, in denen Kationen und Lösungsmittelmoleküle (Aceton) Platz finden.
Additional Material:
7 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/zaac.199762301109
