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Self-assembled Synthesis, Characterization and Antimicrobial Activity of Dinuclear Lanthanide Salicylaldimine Complexes Derived from Cadaverine

Radecka-Paryzek W., Pospieszna-Markiewicz I., Kędzia B.

Polish Journal of Chemistry

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2009

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Vol. 83, nr 10

1693-1700

EN

The new bimetallic lanthanide salicylaldimine complexes of the formula Ln2(H2L)3(NO3)6×2H2O, where Ln = La3+, Eu3+ or Gd3+ and H2L = N,N'- bis(salicyl -idene)-1,5-pentanediamine, are formed in a self-assembly process in volving the lanthanide template-induced one-pot Schiff base condensation reaction between salicylaldehyde and biogenic diamine cadaverine (1,5-pentanediamine). The complexes were characterized by spectroscopic methods (IR, 1H NMR, ESI-MS, UV-Vis, luminescence), and thermogravimetric and elemental analysis. The salicylaldimine with a potentially tetradentate N2O2 set of donor atms displays a rare coordination pattern acting as a neutral ligand using exclusively oxygens as donor atoms with out in volving the nitrogen atoms in the coordination. The europium(III) complex was tested for antimicrobial activity against Staph y lo coc cus aureus in a minimum inhibitory concentration (MIC) experiment.

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Self-Assembly in Lanthanum Complexes of Salicylaldimines Derived from Biogenic Diamines

Pospieszna-Markiewicz I., Radecka-Paryzek W.

Polish Journal of Chemistry

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2008

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Vol. 82, nr 6

1207-1212

EN

Lanthanum(III) chloride and nitrate appear to be effective template agents in the one-step synthesis of salicylaldimine complexes derived from salicylaldehyde and biogenic diamines putrescine or cadaverine. The potentially tetradentate N2O2 Schiff bases display a rare coordination pattern of salen-type complexes acting as neutral ligands us ing oxygens as do nor atoms with out in volving the nitrogen atoms in the coordination. The synthesis and characteriz tion of the new free salicylaldimine ligand derived from cadaverine was also carried out.

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Metal-Ion-Directed Synthesis of the New Macrocyclic and Acyclic Homo- and Heterodinuclear Schiff Base Complexes Derived from Putrescine

Radecka-Paryzek W., Kaczmarek M., Luks E., Pospieszna-Markiewicz I.

Polish Journal of Chemistry

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2005

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Vol. 79 / nr 10

1597-1604

EN

The template reaction of 2,6-diacetylpyridine with putrescine, a biogenic diamine, in the presence of lanthanum(III) and zinc(II) ions produces homo- and heteronuclear complexes of 22-membered macrocyclic ligand with an N6 set of donor atoms as a result of the [2+2] Schiff base cyclocondensation. Complexes containing Schiff base acyclic ligands terminated by two carbonyl groups or one carbonyl and one amine group as products of the partial metal-promoted condensation have been also isolated. They might be regarded as possible intermediates in the formation of the macrocyclic complexes. The complexes have been characterized by spectral data (IR, 1H NMR, ESI-MS) and elemental analyses.

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Metal-Ion-Directed Synthesis of Homo- and Heteronuclear Dimetallic Schiff Base Podates. II.

Radecka Paryzek W., Kaczmarek M. T., Pospieszna-Markiewicz I.

Polish Journal of Chemistry

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2002

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Vol. 76 / nr 5

679-685

EN

Homodinuclear complexes with magnesium(II), calcium(II), and barium(II) ions and heterodinuclear complexes with calcium(II) or cadmium(II) and lanthanide(III) ions containing Schiff base open-chain ligand terminated by one amine and one carbonyl group were prepared as a result of the partial Schiff base condensation reaction between 2,6-diacetylpyridine and 4-methyl-1,2-phenylenediamine in the presence of the appropriate ions acting as templates. The complexes were characterized by spectroscopic methods (IR, 1H NMR, FAB-MS), thermogravimetric and elemental analyses.