Influence of the thermal excitations of the ferrimagnetic ( 1¯/2,5/2, 1¯/2 ) linear trimer on the paramagnetic behavior of the layered metal-radical complex {Mn(hfac) 2} 3(3R Δ) 2ṡ n-C 7H 16
Abstract
The complex {Mn(hfac) 2} 3(3R Δ) 2ṡ n-C 7H 16 forms a two-dimensional honeycomb-like spin network. It is shown that the spins of Mn(II) form with the two 1/2-spins of different adjacent triradicals 3R Δ linear ( 1¯/2,5/2, 1¯/2 ) ferrimagnetic trimers, which determine the paramagnetic properties of the complex. The intratrimer excitations result in the decay of the trimers above 140 K.
- Publication:
-
Physics Letters A
- Pub Date:
- October 1999
- DOI:
- 10.1016/S0375-9601(99)00604-0
- Bibcode:
- 1999PhLA..261..212M