Synthesis, structure and magnetic investigations of polycarboxylato-copper(II) complexes

Franz-Andreas Mautner*, Jörg Albering, Ramon Vicente, Chase Andrepont, Jacob G. Gautreaux, August A. Gallo, Salah S. Massoud*

*Korrespondierende/r Autor/-in für diese Arbeit

Publikation: Beitrag in einer FachzeitschriftArtikelBegutachtung

Abstract

Polynuclear Cu(II) complexes bridged by multicarboxylate compounds (1,4,5,8-naphthalene-tetracarboxylic acid, H4nptc; 2,5-pyridinedicarboxylic acid, 2,5-H2pydc; 1,3,5-benzenetricarboxylic acid, 1,3,5-H3btc; tris(acetato)amine) have been synthesized and characterized by IR and UV–Vis spectroscopic techniques. These compounds include [Cu4(pmedien)4(μ4-nptc)(H2O)4](ClO4)4·2H2O (1), [Cu2(pmedien)2(μ2-2,5-pydc)(H2O)](ClO4)2·H2O (2), [Cu3(DPA)3(1,3,5-btc)(ClO4)3]·H2O (3), [Cu3(DPA)3(HN(CH2COO)3)(H2O)3](ClO4)4·3H2O (4), and [Cu3(pmedien)3(HN(CH2COO)3)(H2O)3](ClO4)4·2H2O (5) where pmedien = N,N,N′,N″,N″-pentamethyldiethylenetriamine and DPA = di(2-pyridymethyl)amine. X-ray single crystal crystallography reveal the tetra- and di-nulear bridging nature of the fully deprotonated acids H4nptc and 2,5-H2pydc in complexes 1 and 2, respectively. Magnetic susceptibilities of complexes 1 and 2 which were measured at variable temperatures showed very weak antiferromagnetic coupling.
Originalspracheenglisch
Seiten (von - bis)158-163
FachzeitschriftPolyhedron
Jahrgang54
DOIs
PublikationsstatusVeröffentlicht - 2013

Fields of Expertise

  • Advanced Materials Science

Treatment code (Nähere Zuordnung)

  • Basic - Fundamental (Grundlagenforschung)

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