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RESEARCH PRODUCT
Spin canting in Re(IV) complexes: magnetic properties of [ReX4(bpym)] ( X = Cl and Br; bpym = 2,2′-bipyrimidine)
Francisco LloretJosé Martínez-lilloMiguel JulveJuan Faussubject
HysteresisMolecular solidFerromagnetismCondensed matter physicsSpinsChemistryIntermolecular forceMaterials ChemistryPhysical and Theoretical ChemistryAntiferromagnetic couplingSpin cantingdescription
The mononuclear complexes [ReCl4(bpym)] (1) and [ReBr4(bpym)] (2) (bpym = 2,2′-bipyrimidine) are weak ferromagnets. Magnetic ordering occurs below 7.0 (1) and 20.0 K (2) and good hysteresis loops are observed for the two compounds at 2.0 K. A spin-canting phenomenon, i.e., a non-strict linearity of the individual spins aligned in an anti-parallel way by intermolecular antiferromagnetic coupling occurring in many Re(IV) complexes, accounts for these magnetic features which are unusual in molecular solids such as 1 and 2.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2008-11-17 | Journal of Coordination Chemistry |