ABSTRACT: The synthesis, X-ray crystal structure and magnetic properties of a new dodecanuclear manganese complex are reported. Complex crystallizes in tetragonal space group I41/a with the following cell dimensions at 293(2) K: a=b=26.697(4) Å, c=13.246(4) Å, and Z=4. The results of DC and AC magnetic susceptibility studies are described. DC measurements show the presence of hysteresis loops, and the out-of-phase component of AC magnetic susceptibilities has a frequency dependent maximum. Step-like features are seen on hysteresis loops and quantum mechanical tunneling could be the origin of these unusual relaxations.
Inorganic Chemistry Communications.