ISSN:
0044-2313
Keywords:
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
Structural Properties of Copper(II)Dicyanamide and Tricyanmethanide Complexes of Substituted PyridinesNew pseudohalogeno-copper(II) complexes of the type CuX2L2 (L = 2-, 4-methylpyridine, 3,4-dimethylpyridine, 2- or 4-ethylpyridine, quinoline) were prepared. From the I. R. spectra the bridging function of the pseudohalogenide ligands as well as their bridging mode were established. The E. S. R. spectra indicate in most cases an exchange coupling between magnetically unequivalent CuII atoms. From the electronic spectra follow the six-coordinate, elongated pseudooctahedral configurations with a near axial distortion. The high magnetic moments at room temperature reveal a ferromagnetic interaction between the CuII atoms.
Notes:
Es wird über die Synthese einer Reihe neuer Pseudohalogenid-Komplexe des Typs [CuX2L2] (X = N(CN)2, C(CN)3; L = 2-, 4-Methylpyridin, 3,4-Dimethylpyridin, 2-, 4-Ethylpyridin und Chinolin) berichtet. Aus den IR-Spektren werden Brückenfunktion und Bindungstyp der Pseudohalogenid-Liganden erkannt. Die ESR-Spektren der Komplexe zeigen in den meisten Fällen Austauschkopplung zwischen magnetisch nicht äquivalenten Kupfer(II)-Atomen an. Die Elektronenspektren der Komplexe weisen gestreckte pseudooktaedrische Konfiguration aus, während die magnetischen Momente ferromagnetische Wechselwirkung zwischen den CuII-Atomen anzeigen.
Additional Material:
1 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/zaac.19845100307
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