AN EXTRAORDINARY EXAMPLE OF METALLOSELECTIVITY - EXTRACTION OF COPPERFROM THE MIXED-METAL CLUSTER CU2RU6(CO)(16)(MU(6)-C)(NCME)(2) BY 1,5,9-TRITHIACYCLODODECANE

The reaction of Cu2Ru6(CO)(16)(mu(6)-C)(NCMe)(2), I, with the thiacrow n ether 1,5,9-trithiacyclododecane (12S3) resulted in the extraction o f both copper atoms from the ruthenium cluster complex by the thiacrow n and formation of the salt 3)-12S3)(eta(1)-12S3)](2)[Ru-6-(CO)(16)(mu (6)-C)], 2, in 56% yield. Compound 2 was characterized by a single-cry stal X-ray diffraction analysis. The structures of the ions are simila r to those found in previously reported salts.