The heats of formation, ΔH, of the title complexes were detd. calorimetrically in aq. solns. at 25°. Comparison with ΔH values for the Cu complexes obtained by temp.-dependent stability const. studies (M. Kodama and E. Kimura, 1975 and 1976) and with ΔH calorimetric data for Cu complex with 1,4,8,11-tetraazacyclotetradecane (authors, to be published), allows to evaluate the 2 methods of obtaining ΔH values and to consider the effect of the ring size on ΔH. The mol. structure of the complexes is discussed.
Ring size effect on the enthalpies of formation of copper(II) and zinc(II) complexes with 1,4,7,10-tetraazacyclododecane and 1,5,9,12-tetraazacyclopentadecane
FABBRIZZI, LUIGI;
1977-01-01
Abstract
The heats of formation, ΔH, of the title complexes were detd. calorimetrically in aq. solns. at 25°. Comparison with ΔH values for the Cu complexes obtained by temp.-dependent stability const. studies (M. Kodama and E. Kimura, 1975 and 1976) and with ΔH calorimetric data for Cu complex with 1,4,8,11-tetraazacyclotetradecane (authors, to be published), allows to evaluate the 2 methods of obtaining ΔH values and to consider the effect of the ring size on ΔH. The mol. structure of the complexes is discussed.File in questo prodotto:
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