Controlled Growth of Cyano-Bridged Coordination Polymers into Layered Double Hydroxides

The controlled growth of cyano-bridged coordination polymers was developed by using layered double hydroxides (LDH) as bidimensional host structures. A series of nanocomposites [B0.66Al0.33(OH)(2)](0.33+)/[MFe(CN)(6)](-) (B = Mg, Ni; M = Ni, Co) were obtained by step-by-step coordination Of hexacyanoferrate building blocks and bivalent metal ions into - the interlayer domain of the matrix. The obtained nancomposites were studied by infrared (IR), UV-vis spectroscopy, X-ray diffraction, and magnetic measurements, which reveal the presence of, cyano-bridged coordination polymers [MFe(CN)(6)](-) intercalated into the LDH. [MFe(CN)(6)](-) confined into diamagnetic [Mg0.66Al0.33(OH)(2)](0.33+) and magnetic [Ni0.66Al0.33(OH)(2)](0.33+) LDH layers show the presence of a spin-glass behavior in which the magnetic parameters depend on the confined coordination polymer and the LDH host.