Bh. Chen et al., SYNTHESIS, CHARACTERIZATION AND AQUATION KINETICS OF A NEW TRANS DIASTEREOISOMER OF THYL-1,4,8,11-TETRAAZACYCLOTETRADECANE)COBALT(III) PERCHLORATE, Journal of the Chemical Society. Dalton transactions, (20), 1994, pp. 2959-2961
A new trans diastereoisomer of thyl-1,4,8,11-tetraazacyclotetradecane)
cobalt(III) perchlorate has been prepared, and the electronic absorpti
on and infrared spectral data studied. The assignments of the structur
e of the isomer have been accomplished by thorough stereochemical anal
ysis combined with H-1 and C-13 NMR spectral data. Aquation kinetics h
ave been studied at various temperatures and activation parameters det
ermined. The results indicate a dissociative activation with retention
of configuration and a distorted-square pyramidal activated complex.