TRANSITION-METAL COMPLEXES OF (1S,2S,3R)-3-HYDROXYCAMPHORSULTAM

Complexes of (1S,2S,3R)-3-hydroxycamphorsultam (Chemical Abstracts Ser vice name ,6,7-hexahydro-3H-3a,6-methano-2,1-benzisothiazole 2,2-dioxi de) with the transition metals Fe-(III), Cu(II), Co(II), and Re(III) h ave been prepared and characterized by elemental microanalysis, NMR, a nd IR, and their electrochemical properties have been studied by cycli c voltammetry and controlled potential electrolysis. The X-ray structu re of the Copper complex [{CuCl}2(-L')2], which crystallizes in the mo noclinic space group I2 with a = 13.9777(8), b = 7.2778(3), c = 19.891 (1) angstrom, beta = 91.96(4), Z = 4, V = 2020(2) angstrom3 (R = 0.02 7 and R(w) = 0.029), shows that it is a dimeric oxygen bridged compoun d with a Cu...Cu distance of 2.989(4) angstrom, containing a hydrogen bond between one oxygen of the sulfonamide group and a triethylammoniu m ion, which is formed from triethylamine used to deprotonate the chir al ligand.