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Rational Design of Homo and Hetero Hexanuclear Coordination Compounds: Syntheses and Magnetic Properties of [Cu2IIM4II] (M = Cu, Ni) Species and the Crystal Structure of {[Cu(tmen)(H2O)]2[Cu(tmen)]2[Cu2L](H2O)}(ClO4)4 · 2 H2O

✍ Scribed by Ally Aukauloo; Xavier Ottenwaelder; Rafael Ruiz; Yves Journaux; Yu Pei; Eric Rivière; M. Carmen Mun˜oz

Publisher
John Wiley and Sons
Year
2000
Tongue
English
Weight
488 KB
Volume
2000
Category
Article
ISSN
1434-1948

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✦ Synopsis

New homo-and heterometallic hexanuclear complexes of formula {[Cu(tmen)

tetrakis(aminomethylene)methanetetrakis(oxamic acid), tmen = N,N,NЈ,NЈ-tetramethylethylenediamine, pmdien = N,N,N',N',N''-pentamethyldiethylenetriamine, and cyclam = 1,4,8,11-tetraazacyclotetradecane] have been synthesized. The crystal structure of [Cu 6 -tmen] has been determined by single-crystal X-ray diffraction. The structure consists of cationic {[Cu(tmen)(H 2 O)] 2 [Cu(tmen)] 2 -[Cu 2 L](H 2 O)} 4+ hexanuclear units. The hexanuclear cation is made up of two symmetry-related oxamato-bridged trinuclear units connected through the central carbon atom C(6) of the L 8-ligand. Variable-temperature magnetic susceptibility

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