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Equilibrium constants and thermodynamic parameters for the complexation of nickel(II) and cobalt(II) by noncyclic, monocyclic and bicyclic ligands in acetonitrile have been determined by calorimetric titrations. The donor atoms and the ring size of the ligands play an important role for the stabilities of the complexes formed. An increasing number of nitrogen atoms in the crown ether favours complex formation. The number of nitrogen donor atoms of the macro- cyclic ligands examined has a direct influence on the values of the reaction enthalpies. Keywords: Complex formation; crown ethers; azacrown ethers; thiacrown ethers; cryptands; acetonitrile
Kristalle und Mineralien
(1999)
NMR spectroscopic and ab-initio MO study of sterically hindered 2,3-disubstituted quinoxalines
(1999)
The influence of structure and lipophilicity of hydantoin derivatives on anticonvulsant activity
(1999)
NMR-spectroscopic and theoretical structural analysis of 5-benzyl subtituted hydantoins in solutions
(1999)
Investigation on the photoreactions of Nitrate and Nitrite ions with selected Azaarenes in water
(1999)
Proteinsekundärstrukturen an der fluiden Grenzfläche - in situ - Untersuchungen mit der IRRAS
(1999)
Polymerbedeckte Lipidvesikel
(1999)