The synthesis and structure of two novel metal-di-2-pyridyl ketone oxime dimers

Autor:	Barry L. Westcott, Alan J. Jircitano, Khalil A. Abboud, Shaun O. Sommerer
Rok vydání:	1995
Předmět:	chemistry.chemical_classification Coordination sphere Schiff base Ketone Stereochemistry Crystal structure Oxime Inorganic Chemistry Bond length chemistry.chemical_compound Crystallography chemistry Octahedron Pyridine Materials Chemistry Physical and Theoretical Chemistry
Zdroj:	Inorganica Chimica Acta. 238:149-153
ISSN:	0020-1693
DOI:	10.1016/0020-1693(95)04697-8
Popis:	Single crystals of bis- N ) N ′, N ″-di-2-pyridylketone oxime- O -nitratosilver(I)) ( I ) and di- μ -chlorobis(( N , N ″-2-pyridyl-2′-pyridinium ketone oxime)aquchlorocopper(II)) ( II ) were isolated from aqueous solutions and have been structurally characterized. The crystals of I were found to contain neutral dimers of Ag(di-2-pyridylketone oxime)NO 3 where both Ag(I) cations have obtained a CN = 4 and the geometry around the metal centers can be described as distorted tetrahedra. The structure of II revealed that di-2-pyridylketone oxime (dpk-o) does not bridge the metal centers but coordinates separately to the Cu cations through one pyridine N and the N of the Schiff base function. The nitrogen of the second pyridine ring is protonated and is not involved in coordination. Both Cu cations obtain a CN = 6 if one includes CuCl bond lengths up to 3.053(3) A in the coordination sphere of the Cu cation. The geometry around each Cu can then be described as a distorted octahedron.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::71760f30941d438ff6780fca0429228a https://doi.org/10.1016/0020-1693(95)04697-8 Zobrazit plný text záznamu Full Text from ScienceDirect