FACTORS AFFECTING CHELATION OF CARBOXYLATES TO CIS-DIAQUA CO(III) COMPLEXES - IMPLICATIONS ON THE REACTIVITY OF THE METAL-COMPLEXES FOR HYDROLYZING ESTERS, AMIDES, NITRILES, AND PHOSPHATES
Ja. Connolly et al., FACTORS AFFECTING CHELATION OF CARBOXYLATES TO CIS-DIAQUA CO(III) COMPLEXES - IMPLICATIONS ON THE REACTIVITY OF THE METAL-COMPLEXES FOR HYDROLYZING ESTERS, AMIDES, NITRILES, AND PHOSPHATES, Inorganic chemistry, 34(5), 1995, pp. 1094-1099
The equilibrium constant for chelation of carboxylates to cis-diaqua t
etraamine Co(III) complexes is highly sensitive to the tetraamine liga
nd structure, basicity of the chelating carboxylate, and solvent polar
ity. cis-Diaqua tetraamine Co(III) complexes that easily accommodate c
helation of carboxylates are also highly reactive for hydrolyzing carb
oxyl esters, amides, nitriles, and phosphate esters. The X-ray crystal
strcuture of [(trpn)Co(eta(2)-O2CC(CH3)(3)]-(ClO4)(2) has been determ
ined: trpn = tris(3-aminopropyl)amine, C14H33N4O10Cl2CO, orthorhombic,
P2(1)2(1)2(1), a = 8.7822(3)Angstrom, b = 14.9959(6)Angstrom, c = 17.
5277(5)Angstrom, V = 2308.35(14) Angstrom(3), Z = 4.