mer-[Fe(pcq)(CN)(3)](-): A novel cyanide-containing building block and its application to assembling cyanide-bridged trinuclear (Fe2MnII)-Mn-III complexes [pcq(-)=8-(pyridine-2-carboxamido)quinoline anion]

Ni ZH; Kou HZ; Zhang LF; Ni WW; Jiang YB; Cui AL; Ribas J; Sato O

Inorganic Chemistry, Vol.44, No.26, 9631-9633, 2005

Ni ZH, Kou HZ, Zhang LF, Ni WW, Jiang YB, Cui AL, Ribas J, Sato O

A new cyanide-containing building block K[Fe(pcq)(CN)(3)] [1; pcq(-) = 8-(pyridine-2-carboxamido)quinoline anion] containing a low-spin Fe-III center with three cyanide groups in a meridional arrangement has been successfully designed and synthesized. Three cyanide-bridged trinuclear (Fe2MnII)-Mn-III complexes, [Fe(pcq)(CN)(3)](2)[Mn(CH3OH)(2)(H2O)(2)]center dot 2H(2)O (2), [Fe(pcq)(CN)(3)](2)[Mn(bipy)(2)](center dot) CH3OH center dot 2H(2)O (3), and [Fe(pcq)(CN)(3)](2)[Mn(phen)(2)]center dot CH3OH center dot 2H(2)O (4), have been synthesized and structurally characterized. The magnetic susceptibilities of the three heterometallic complexes have been investigated.