Correlations of Nuclear Magnetic Resonance and Optical Rotatory Dispersion Spectra for Establishing the Absolute Configurational Assignment of Cobalt(III)-Chelated Optically Active Triethylenetetramine Homolog-α-Amino Acid Adducts

Kinetics and stereochemistry of the spontaneous and mercury(II)-catalyzed acid hydrolysis for the symmetrical cis isomer of the dichloro(1,8-diamino-3,6-dithiaoctane)cobalt(III) cation

“…nation of column 4 indicates the reaction is first order in substrate concentration and independent of acid concentration in the ranges studied. A simple first-order rate expression describes the reaction kinetically as -d[Co(eee)Cl2+]/df = /cobsd[Co(eee)Cl2+] Activation parameters were determined from the slope of a plot having In kobsd/T vx.…”

“…Examination of-the data presented in columns 2 and 3 of Table III shows that as the concentration of Hgaq2+ increases, the apparent second-order rate constant defined by kt ions such that saturation occurs as the concentration of Hgaq2+ is increased (eq 4). Subsequent aquation is then either the " s-cis-Co(eee)Cl2* + Hgaq ^s-czs-Co(eee)Cl2Hg3t (4) result of a first-order decomposition of the Coni-Cb-Hgn bridged complex (eq 5) or the second-order reaction of Hgaq2+ ky s-cz's-Co(eee)Cl2Hg3+->s-m-Co(eee)ClH202+ + HgCl+ (5) with the remaining uncomplexed í-cz'í-Co(eee)Cb+ (eq 6).…”