Isostructural Co(II)₂Co(III)₄Ln(III)₄ (Ln = Y (1), Gd (2) and Dy (3)) coordination clusters formed using the ligand Tris are the first examples of 3d-4f complexes involving this ligand and show weak ferromagnetic coupling between the Co(II) ions and slow relaxation (SMM) behaviour for 3.

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http://dx.doi.org/10.1039/c000008fDOI Listing

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