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A Series of Trinuclear Cu II Ln III Cu II Complexes Derived from 2,6-Di(acetoacetyl)pyridine: Synthesis, Structure, and Magnetism

✍ Scribed by Shiga, Takuya; Ohba, Masaaki; Ōkawa, Hisashi

Book ID
127071088
Publisher
American Chemical Society
Year
2004
Tongue
English
Weight
355 KB
Volume
43
Category
Article
ISSN
0020-1669

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✦ Synopsis

A series of trinuclear Cu(II)Ln(III)Cu(II) complexes with the bridging ligand 2,6-di(acetoacetyl)pyridine have been prepared by one-pot reaction with Cu(NO(3))(2).3H(2)O and Ln(NO(3))(3).nH(2)O in methanol. X-ray crystallographic studies for all the complexes indicate that two L(2)(-) ligands selectively sandwich two Cu(II) ions with the 1,3-diketonate entities and one Ln(III) ion with the 2,6-acetylpyridine entity to form a trinuclear CuLnCu core bridged by the enolate oxygen atoms. Cryomagnetic properties of the complexes are studied with respect to the electronic structure of the Ln ion.

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