K. Falk et al., Manganese (III)-porphyrin-TCNE-systems with three-dimensional magnetic ordering at similar to 20 K, J MAGN MAGN, 197, 1999, pp. 564-565
Tetrakis-(para-R-phenyl)-porphyrinatomanganese(III)tetracyanoethenides with
different R groups in the para-position of the phenyl-rings show interesti
ng magnetic properties at low temperatures. In an area of 20 K they undergo
a transition to a three-dimensional-ordered magnetic phase. Below these cr
itical temperatures the compounds show typical magnetic behaviour like coer
civity and remanence. AC-susceptibility measurements give hints for reentra
nt-spin-glass behaviour. (C) 1999 Elsevier Science B.V. All rights reserved
.