Abstract / Description of output
The reaction of Ni(NO3)(2).6H(2)O with H(3)thme (trihydroxymethylethane) in the presence of NaOMe leads to a tetranuclear Ni-4 complex with a cubane-like structure. Intramolecular ferromagnetic interactions [J = 10 cm(-1) based on H -J((S1S2)-S-. + (S1S3)-S-. + (S1S4)-S-. + (S2S3)-S-. + (S2S4)-S-. + (S3S4)-S-.)] lead to an S 4 ground state stabilized by 40 cm(-1) from the first S = 3 excited state. Magnetization vs. field studies at different temperatures above 2 K suggest the presence of an axial magnetic anisotropy. Single-crystal magnetization measurements show a single-molecule-magnetic behavior below T = 0.5 K with fast relaxation of the magnetization due to resonant quantum tunneling. ((C) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004).
Original language | English |
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Pages (from-to) | 2219-2222 |
Number of pages | 4 |
Journal | European journal of inorganic chemistry |
Issue number | 11 |
DOIs | |
Publication status | Published - 7 Jun 2004 |
Keywords / Materials (for Non-textual outputs)
- nickel
- ferromagnetism
- single-molecule studies
- cubane complexes
- tripodal ligands
- CRYSTAL-STRUCTURE
- SCHIFF-BASE
- NICKEL(II) COMPLEXES
- CLUSTERS
- EXCHANGE
- LIGANDS
- ATOMS