ISSN:
0044-2313
Keywords:
Samarium
;
Iodide
;
Crown Ether Complexes
;
Crystal Structure
;
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
Synthesis and Crystal Structure of the Monomeric in-cavity Complex [SmI3(dibenzo-18-crown-6)]Red crystals of [SmI3(dibenzo-18-crown-6)] are obtained by reaction of SmI3 with dibenzo-18-crown-6-ether in acetonitrile. The crystal structure (tetragonal, P43212, Z = 4; a = 962.7(1) pm, c = 2690.0(3) pm; R1 = 0.041; wR2 = 0.101) contains the neutral molecules [SmI3(dibenzo-18-crown-6)]. Distorted triangular SmI3 units are surrounded perpendicularly by one molecule of the crown ether so that a coordination number of 9 results for Sm3+ (three iodide ions and the six oxygen atoms of the crown ether).
Notes:
Bei der Umsetzung von SmI3 mit Dibenzo-18-Krone-6-Ether in Acetonitril erhält man rötliche Kristalle von [SmI3(Dibenzo-18-Krone-6)]. Die Kristallstruktur (tetragonal, P43212, Z = 4; a = 962,7(1) pm, c = 2690,0(3) pm; R1 = 0,041; wR2 = 0,101) ist aus neutralen Molekülen der Zusammensetzung [SmI3(Dibenzo-18-Krone-6)] aufgebaut: Verzerrt trigonal-planare SmI3-Einheiten sind von einem Molekül des Kronenethers umgeben, so daß Sm3+ die Koordinationszahl 9 hat (durch drei Iodid-Ionen und die sechs Sauerstoffatome des Kronenethers).
Additional Material:
5 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/zaac.199762301153
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