Two novel μ6-O2− bridged Co14/Ni14 hydroxamate clusters packed in distorted face-centered cubic patterns

Two novel clusters [CoII14(μ6-O2−)(sbha)12(sba)2 (DMF)7(DMA)]·(DMF)8 (1) and [NiII14(μ6-O2−)(sbha)12(sba)2(DMF)8] (2) (sH2bha = 4-bromo-benzohydroximic acid; sHba = 4-bromobenzene carboxylic acid; DMF = N,N-dimethylformamide; DMA = dimethylamine) have been synthesized. The novel body-centred μ6-O2− bridged Co14 and Ni14 clusters are packed in distorted face-centered cubic (FCC) patterns with different symmetries. Magnetic studies confirmed the antiferromagnetic exchange interactions between magnetic centers.