Four solid phases of [Zn(DMSO)(6)](ClO4)(2) have been detected by differential scanning calorimetry (DSC). Specifically, the phase transitions were detected between: metastable phase KII <-> supercooled phase K0 at T-C3(h) = 315 K, stable phase Klb <-> stable phase Kla at T-c2(h) = 341 K, stable phase Kla <-> stable phase K0 at T-Cl(h) = 355 K. At T-m2 = 389 K crystals partially and at T-ml = 465 K completely melts. From the entropy change values it was concluded that the phases: K0 and K0' are the orientationally dynamically disordered phases, so called ODDIC crystals, and phases Kla, Klb and metastable KII are dynamically ordered but with some degree of positional disorder. (c) 2006 Elsevier B.V. All fights reserved.