A W(V)–Mn(III) bimetallic assembly built by manganese(III) Schiff-base and octacyanotungstate(V) building blocks: Structure and magnetic property

A new cyano-bridged bimetallic complex [Mn(5-Clsaltmen) (H2O)(CH3OH)]{[Mn(5-Clsaltmen)(H2O)] W(CN)8[Mn(5-Clsaltmen)(CH3OH)]}·3.5H2O·2CH3OH [5-Clsaltmen = N,N′-(1,1,2,2-tetramethylethylene) bis(5-chlorosalicylideneiminato) dianion] (1) was synthesized and structurally characterized by X-ray single-crystal diffraction. The structure of 1 consists of the asymmetric V-shaped Mn–W–Mn trinuclear anions, in which W(V) coordinates with [Mn(5-Clsaltmen)(H2O)]+ and [Mn(5-Clsaltmen)(CH3OH)]+ through the neighboring cyano bridges, isolated cations [Mn(5-Clsaltmen) (H2O)(CH3OH)]+ and lattice water and methanol molecules. The magnetic studies for 1 reveal that antiferromagnetic interactions (J = − 4.6 cm− 1) between WV and MnIII centers is operating within the trimer.