We have investigated Mn(III)-porphyrin-TCNE complexes showing peculiar magn
etic properties at low tremperatures. The tetraphenylporphyrin ligand is su
bstituted on the periphery of the phenyl rings with different groups. Stati
c and dynamic susceptibility measurements have been carried out on the samp
les. (C) 2001 Elsevier Science Ltd. All rights reserved.