Journalartikel

Jahr der Veröffentlichung: 2008

Seiten: 1427-1433

Zeitschrift: Journal of Inorganic and General Chemistry

Bandnummer: 634

Heftnummer: 8

ISSN: 0044-2313

DOI Link: https://doi.org/10.1002/zaac.200800118

Verlag: Wiley

Abstract: 
The coordination polymers (1)(infinity)[Ln(2)(Cbz)(4)], Ln = Yb, Eu, Cbz(-) = carbazolate anion, C12H8N-, can be degraded by the use of strong N-donor ligands like N-phenylpiperazine (Phpip = (C6H5)C4H8NNH) as chemical scissors. The degradation process for the ytterbium containing polymer ends in the monomeric compound [Yb(Cbz)(3)(Phpip)(2)]center dot 1/2Phpip and includes an oxidation step Yb-II -> Yb-III. Thus the circle of reactions of Yb metal with carbazole (CbzH) starting in liquid NH3 to the coordination polymer and ending with its degradation by the use of chemical scissors is resolved. Transformation on europium has been started on the base of both metals leading to coordination polymers of the same chemical formula. However already the prelude of reactions differs for Eu as the electride induced reaction of Eu metal with CbzH in liquid ammonia followed by Phpip treatment gives single crystalline [Eu-2(Cbz)(4)(NH3)(2)(Phpip)(4)]center dot 2Phpip. This dimeric molecule contains Eu-II and ligands of all reaction steps, NH3, Cbz(-), Phpip, and is thereby an interesting starting point for the resolution of polymer formation and degradation as well as a competition of these counter reactions.

Harvard-Zitierstil: Zurawski, A. and Müller-Buschbaum, K. (2008) Abbau von Koordinationspolymeren bis zum Monomer und Konkurrenz von Polymerisation und Chemischer Schere an Carbazolaten von Yb und Eu mit N‐Phenylpiperazin, Zeitschrift für anorganische und allgemeine Chemie = Journal of Inorganic and General Chemistry, 634(8), pp. 1427-1433. https://doi.org/10.1002/zaac.200800118

APA-Zitierstil: Zurawski, A., & Müller-Buschbaum, K. (2008). Abbau von Koordinationspolymeren bis zum Monomer und Konkurrenz von Polymerisation und Chemischer Schere an Carbazolaten von Yb und Eu mit N‐Phenylpiperazin. Zeitschrift für anorganische und allgemeine Chemie = Journal of Inorganic and General Chemistry. 634(8), 1427-1433. https://doi.org/10.1002/zaac.200800118