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Showing papers by "Milan Melnik published in 1978"


Journal ArticleDOI
TL;DR: In this article, the authors describe the preparation of CuCl2(4-Mepy)5 and that of the isomers of 4-Methylpyridine where L denotes Pyridine (Py), and M denotes 4-methyl pyridine (4-mepy).
Abstract: Es wird die Darstellung des CuCl2(4-Mepy)5 und der Isomere CuCl2L2 beschrieben, wobei L Pyridin (Py) und 4-Methylpyridin (4-Mepy) bedeutet. Von den Komplexen wurden Pulverrontgenogramme, Elektronen-, IR- und EPR-Spektren aufgenommen, sowie die thermische Zersetzung untersucht. In dem erstmals dargestellten Komplex CuCl2(4-Mepy)5 sind alle Molekeln des neutralen Liganden am Zentralatom koordiniert. Die strukturellen Unterschiede zwischen den dargestellten Paaren der Isomeren CuCl2L2 sind in der inneren Koordinationssphare der Komplexe lokalisiert. Die dargestellten Paare der Verbindungen konnen als „Verzerrungsisomere” betrachtet werden. Preparation, Structure, and Some Properties of the Isomers of Bis-(pyridine)- and Bis-(4-Methylpyridine)dichlorocopper (II) Complexes The preparation of CuCl2(4-Mepy)5 and that of the isomers of CuCl2L2 where L denotes Pyridine (Py) or 4-Methylpyridine (4-Mepy) is described. The structures of complexes were studied using diffraction patterns, electronic, i.r. and e.p.r. spectra and their thermal decomposition. It was found that in the complex CuCl2(4-Mepy)5 all five molecules of the neutral ligand are coordinated to the central atom. Structural differences found between the isomers of CuCl2L2 can be located into the inner coordination sphere of the complexes. The nature of these differences enables us to regard the prepared couples of isomers as distortion isomers.

8 citations


Journal ArticleDOI
TL;DR: In this article, the synthesis and characterization of CuX 2 L; (X = CH 3 CH 2 COO −, ClCH 2 CH 2 CO −, CH 3CHClCOO − or CH 3 CCl 2 CO− ) and L = 4-acetylpyridine N -oxide is reported.

7 citations