Physics
Scientific paper
May 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008rjpca..82..713a&link_type=abstract
Russian Journal of Physical Chemistry A, Focus on Chemistry, Volume 82, Issue 5, pp.713-716
Physics
Scientific paper
The literature data and new results of calorimetric studies of the solution of copper(II), cobalt(II), zinc(II), nickel(II), and mercury(II) complexes with 3,3',4,4',5,5'-hexamethyldipyrrolylmethene-2,2'; 3,3',5,5'-tetramethyl-4,4'-diethyldipyrrolylmethene-2,2'; 3,3',5,5'-tetramethyl-4,4'-dibutyldipyrrolylmethene-2,2' (A), and 2,8,12,18-tetramethyl-3,7,13,17-tetrabutylporphin in various organic solvents were used to calculate the enthalpies of transfer Δtr H o from benzene and estimate the contribution of specific solvation caused by the additional coordination (Δc H o) of electron donor solvent molecules (pyridine and dimethylformamide). The greatest degree of coordination unsaturation and ability to extracoordination was characteristic of copper(II) and mercury(II) complexes with ligand A. The influence of the nature of the complex-forming metal, differences in the alkylation of the ligands, solvent properties, and the macrocyclization effect on the solvation and coordination unsaturation of metal complexes was discussed.
Antina E. V.
Berezin M. B.
Guseva G. B.
v'yugin A. I.
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