Jump to main content
Jump to site search

Issue 20, 2010
Previous Article Next Article

Isomorphous replacement of MII ions in MII–GdIII dimers (MII = CuII, MnII, NiII, CoII, ZnII): magnetic studies of the products

Author affiliations

Abstract

Complexes [MIIGdIII{pyCO(OEt)pyC(OH)(OEt)py}3](ClO4)2·EtOH [MII = CuII (1), MnII (2), NiII (3), CoII (4) and ZnII (5)] crystallize in the monoclinic Cc space group and contain one hexacoordinate MII ion and one enneacoordinate GdIII ion, bridged by three {pyCO(OEt)pyC(OH)(OEt)py} ligands. Magnetic susceptibility measurements indicate a ferromagnetic interaction for 1 and antiferromagnetic interactions for 2–4. Using the Ĥ = JŜGdIIIŜMII spin Hamiltonian formalism, fits to the magnetic susceptibility data yielded J values of +0.32 cm−1 for 1, −1.7 cm−1 for 2, and −0.22 cm−1 for 3. In complex 4, the orbital contributions of CoII precluded the determination of the magnetic coupling. The complex follows the Curie–Weiss law with θ = −2.07 K (−1.44 cm−1).

Graphical abstract: Isomorphous replacement of MII ions in MII–GdIII dimers (MII = CuII, MnII, NiII, CoII, ZnII): magnetic studies of the products

Back to tab navigation

Supplementary files

Additions and corrections

Article information


Submitted
03 Dec 2009
Accepted
24 Feb 2010
First published
19 Mar 2010

Dalton Trans., 2010,39, 5020-5027
Article type
Paper

Isomorphous replacement of MII ions in MIIGdIII dimers (MII = CuII, MnII, NiII, CoII, ZnII): magnetic studies of the products

A. N. Georgopoulou, R. Adam, C. P. Raptopoulou, V. Psycharis, R. Ballesteros, B. Abarca and A. K. Boudalis, Dalton Trans., 2010, 39, 5020
DOI: 10.1039/B925525G

Social activity

Search articles by author

Spotlight

Advertisements