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A strategy for new macrocycle magnetic materials synthesis

Jerzy Mroziński and Alina Bieńko

Faculty of Chemistry, University of Wrocław, 14 F. Joliot-Curie, 50-383 Wrocław, Poland

 

E-mail: jmroz@wchuwr.chem.uni.wroc.pl

Received: 17 October 2007  Revised: 8 May 2008  Accepted: 20 May 2008

Abstract: A study of a series of new types of copper(II) and rhenium(IV) macrocyclic complexes, important macrocyclic molecular magnets, is reported. A detailed description of crystal structure and magnetic behavior of mononuclear copper(II) macrocyclic compounds: CuL1(ClO4)2 (L1 = N-d-2,4,4,9,11,11-hexamethyl-1,5,8,12-tetraazacyclotetradeca-2,9-diene), CuL2(ClO4)2 (L2 = N-d-7,14-diisopropyl-5,12-dimethyl-1,4,8,11-tetraazacyclotetradeca-4,11-diene) and of heteropolynuclear complexes: [CuL1][ReCl4(ox)] · DMF and [(CuL2)(ox)ReCl4] is presented. The results indicate that all compounds behave as weak interacting magnets.

Keywords: heterobimetallic magnets - copper(II) - nickel(II) - and rhenium(IV) complexes - magnetic behavior

Full paper is available at www.springerlink.com.

DOI: 10.2478/s11696-008-0098-8

 

Chemical Papers 63 (3) 306–312 (2009)

Monday, June 27, 2022

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