Room-temperature molecular magnets based on V/TCNE may be prepared via two routes, identified as V(C6H6)2/TCNE/CH2Cl2and V(CO)6/TCNE/CH2Cl2. Both compounds have critical temperatures exceeding 350 K. The magnetization M(T,H) of samples prepared via both routes have been compared. The saturation magnetization of the V(CO)6-derived material (M0∼104emu·Oe·mol−1) is larger than that observed for V(C6H6)6-derived materials (M0∼ 0.6 × 104emu·Oe·mol−1), and the behavior of M(T) at H = 100 Oe is more like that exhibited by crystalline magnets. Whereas V(C6H6)2/TCNE/CH2Cl2has a linear M(T) for 5 ≈ T ≈ 300 K, the magnetization of V(CO)6/TCNE/CH2Cl2follows the Bloch spin-wave form M(T) = M(0)(1 - BT3/2), where the zero-temperature magnetization M(0) is suppressed from M0by the effect of random magnetic anisotropy (RMA). The values of M(0) and the spin-wave dispersion constant B, as well as the range of validity of the T3/2law, vary among different preparations of the magnet, reflecting a correlation between magnetic and structural anisotropies. For the V(CO)6-derived magnet, near Tc≈ 370 K, the large value of the critical exponent β = 0.6 reflects the presence of RMA, consistent with other V/TCNE systems. A scaling analysis is presented.