Magnetic and Spectral Properties of Dimeric Copper(II) Phenylpropynoate Complexes

Article abstract of DOI:10.1246/bcsj.58.2572

Dimeric copper(II) phenylpropynoate adducts C-COO)2.L>2, where L = benzonitrile, 3,5-dichloropyridine, dimethyl sulfoxide and triphenylphosphine oxide, heve been synthesized in order to study the influence of the C<*>C group linked to the COO group upon the extent of antiferromagnetic interaction between the two metal ions.Magnetic susceptibility measurements between 80 and 300 K show that the singlet-triplet separation (-2J) ranges from 283 to 318 cm^-1.The magnetic behavior of the non-adduct compound Cu(Ph-C<*>C-COO)2 is interpreted by taking an inter-dimer interaction into consideration.