Using the bi-dimensional bimetallic networks based upon oxalate complexes,
it is possible to prepare new multilayered materials by insertion of 'elect
roactive' molecules in between these layers. According to this approach a n
ew family of compounds presenting alternating ferromagnetic-paramagnetic la
yers have been succesfully prepared. Here we present the magnetic and speci
fic heat characterization. (C) 1999 Elsevier Science B.V. All rights reserv
ed.