Ferromagnetically coupled dimer of Cu-II-substituted gamma-decatungstosilicate

Liu HS; Gomez-Garcia CJ; Peng J; Feng YH; Su ZM; Sha JQ; Wang LX

Inorganic Chemistry, Vol.46, No.24, 10041-10043, 2007

Liu HS, Gomez-Garcia CJ, Peng J, Feng YH, Su ZM, Sha JQ, Wang LX

A novel copper-substituted polyoxoanion [Cu-4(H2O)(2)(OH)(4)Si2W16O58](8-) (1) has been synthesized as its sodium salt, Na-8-1 center dot 26H(2)O (Na-1), potassium salt, K-8-1 center dot 28H(2)O(K-1), and calcium salt, Ca-4-1 center dot 48H(2)O (Ca-1). Compound 1 is the first dimer of dicopper-substituted gamma-decatungstosilicate fused in an unprecedented side-by-side dimerization mode with a ferromagnetic coupling property.