DIMERIC COPPER(II) TRIPHENYLACETATE ADDUCTS WITH 4-PICOLINE

The crystal structure of tetrakis(mu-triphenylacetato-O:O')-bis[(4-methylpyridine-N)copper(II)] ditoluene solvate (1), [Cu(Ph3CCOO)2(4-PiC)]2.2C7H8 (4-pic = 4-picoline), at 120 K, and the analogous [Cu(Ph3CCOO)2(4-pic)]2.2C6H6 (11) at 290 K were determined by single-crystal X-ray diffraction. The crystal structures of (I) and (II) are essentially identical, and the coordination geometry around the Cu atoms is distorted toward trigonal bipyramidal. The Cu...Cu distances are 2.793 (2) and 2.835 (4) angstrom in (I) and (II), respectively.