Calorimetric determination of macrocyclic enthalpy. Copper(II) and zinc(II) complexes with 1,4,8,11-tetra-azacyclotetradecane
- 1 January 1977
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Chemical Communications
- No. 8,p. 244-245
- https://doi.org/10.1039/c39770000244
Abstract
The first direct calorimetric values for the enthalpies of formation of macrocyclic complexes in aqueous solution show for the title systems the existence of a macrocyclic enthalpy (CuII 4·7 and ZnII 3 kcal mol–1); for the CuII complex the enthalpy of formation fits the linear correlation with spectral energy as previously described for noncyclic nitrogen ligands.Keywords
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