The enthalpies of formation of the title complexes were detd. in aq. soln. at 25° by a direct calorimetric method. The enthalpies of formation of the Cu(II) and Zn(II) complexes exceed that of the most stable analogous linear system by 4.7 and 3.0 kcal/mol, resp. For the Cu(II) complex the enthalpy of formation fits the linear correlation with spectral energy previously described (F., et al., 1976) for noncyclic nitrogen ligands.
Calorimetric determination of macrocyclic enthalpy. Copper(II) and zinc(II) complexes with 1,4,8,11-tetra-azacyclotetradecan
FABBRIZZI, LUIGI;
1977-01-01
Abstract
The enthalpies of formation of the title complexes were detd. in aq. soln. at 25° by a direct calorimetric method. The enthalpies of formation of the Cu(II) and Zn(II) complexes exceed that of the most stable analogous linear system by 4.7 and 3.0 kcal/mol, resp. For the Cu(II) complex the enthalpy of formation fits the linear correlation with spectral energy previously described (F., et al., 1976) for noncyclic nitrogen ligands.File in questo prodotto:
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