Coexistence of the single chain magnet and spin-glass behavior in a cyano-bridged {FeIII2FeII} chain

Abstract A cyano-bridged ferromagnetic {Fe III 2 Fe II } alternating chain {[Fe III (pzTp)(CN) 3 ] 2 [Fe II (imidazole)(H 2 O)]}·3H 2 O ( 1 ) (pzTp = tetrakis(pyrazolyl)borate) was synthesized via rational design. Crystal structure analysis studies demonstrated that complex 1 had a one-dimensional double zigzagging chain-like structure. Magnetic measurements showed that ferromagnetic interactions dominate in 1 and the AC magnetic susceptibility revealed two limit regimes in accordance with the single chain magnet and spin-glass behavior.