shows that the magnetization value is 3.65 μB at 1.9 K and 5 T. The value is much lower than the value expected for 1 Cr III LS (S = 3/2) and 1.5 Mn III HS (S = 5/2). M vs. H measurements were performed at 100 K to check for the presence of ferromagnetic impurities which were found to be absent (Figure Ac susceptibility measurements of 1 show a clear maximum of the in-phase signal of the magnetic susceptibility (under zero DC field) as a function of temperature with different frequencies at temperature of 2.15 K (Figure ). This indicates the presence of a ferrimagnetic ordering with TC= 2.15 K. Also, a nonzero out-of-phase ac signal appears below 4 K (under zero DC field) and starts increasing with decrease of temperature reaching a maximum at 2.15 K (Figure ). The peak maxima remain at this constant value under the application of different frequencies which indicates the absence of glassy behavior or superparamagnetism and shows a perfectly ordered state. Both the in-phase and out-of-phase magnetic susceptibility signals do not exhibit any field dependence against frequency (Figure ) which shows the absence of slow relaxation of magnetization for this system. For the desolvated phase 1.des,