The antiferromagnetic (TN= 2.3 K) compound MnCu(obbz). 5H2O [obbz=oxamido- bisbenzoato was synthesized by Nakatani et al1. It was reported to yield, upon dehydration, a ferromagnetic compound MnCu(obbz).1H2O with Tc= 14 K. The exact crystal structure of both these MnCu-based compounds is not known. The ferromagnetic ordering, however, is suggested to occur when four non-coordinated water molecules leave causing a re-adjustment of the relative positions of ID ferrimagnetic chains comprising Mn(II) and Cu(II) ions. We report on the ac-susceptibility (Xac), dc magnetization (VSM) and TG data on MCu(obbz). nH2O (M=Mn or Co). For vacuum dehydrated MnCu-compound, a large divergence inXac(T) data is observed. FC and ZFC magnetization data and M(H) loops confirm the ferromagnetism with a saturation magnetization of 480 G at 4.5 K. TG data taken on, the precursor MnCu(obbz).nH2O between R.T. and 130°C, however, indicates that 'n' cannot be specified unequivocally for the ferromagnetic compound. A sharp peak is obtained inXacat 27 K for one of the CoCu(obbz).nH2O samples indicating magnetic ordering.