Single crystal EPR spectra of the heterobimetallic chain compounds MnCu (pba) (H2O)3 .2H2O (1) and MnCu (pbaOH) (H2O)3(2) where pba is 1,3-propylene-bis(oxamato) and pbaOH is 2-hydroxy-1,3-propylene-bis(oxamato) have been recorded in the 4.2-300 K temperature range. The angular dependence of the linewidths was interpreted in terms of dipolar interactions. The anisotropic shifts in the resonance fields observed at low temperature, due to short range order effects, are in agreement with the magnetic anisotropy measurements. EPR and magnetic data allow to propose the spin distribution in both compounds.
MAGNETISM AND EPR SPECTRA OF Mn +2Cu2+ FERRIMAGNETIC CHAINS / O. Guillou;D. Gatteschi;C. Zanchini;R. Sessoli;O. Kahn;M. Verdaguer;Y. Pei. - In: JOURNAL DE PHYSIQUE. COLLOQUE. - ISSN 0449-1947. - STAMPA. - 49:(1988), pp. C8-857-C8-858. [10.1051/jphyscol:19888387]
MAGNETISM AND EPR SPECTRA OF Mn +2Cu2+ FERRIMAGNETIC CHAINS
GATTESCHI, DANTE;SESSOLI, ROBERTA;
1988
Abstract
Single crystal EPR spectra of the heterobimetallic chain compounds MnCu (pba) (H2O)3 .2H2O (1) and MnCu (pbaOH) (H2O)3(2) where pba is 1,3-propylene-bis(oxamato) and pbaOH is 2-hydroxy-1,3-propylene-bis(oxamato) have been recorded in the 4.2-300 K temperature range. The angular dependence of the linewidths was interpreted in terms of dipolar interactions. The anisotropic shifts in the resonance fields observed at low temperature, due to short range order effects, are in agreement with the magnetic anisotropy measurements. EPR and magnetic data allow to propose the spin distribution in both compounds.
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