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Kopacz M., Woźnicka E.

Polish Journal of Chemistry

2004

Vol. 78 / nr 4

521-528

New solid complex compounds of La(III), Sm(III), Tb(III), Dy(III), Ho(III) and Er(III) ions with morin were obtained. They were characterized by elemental analysis, thermogravimetric studies and spectrophotometric determination of metal ions. The molecular formulae of the compounds are: Ln(C15H9O7)3_nH2O, where n = 6 forLa,Sm,Tb,Dy and n = 5 for Ho and Er. Low molar conductances of the complexes (which correspond to non-electrolytes) and the _-_* bands of ligand and the CT bands L_Min UV-VIS spectra of the methanol solutions of the complexes were established. On the basis of 13CNMR and IR spectra, it was supposed that morin was bound to the lanthanide ions via C(4)=O and C(3)-oxygen.

Jonoforetyczne badania niektórych flawonoidów i ich kompleksów z jonami metali

Kopacz M., Woźnicka E., Skuba E.

Zeszyty Naukowe Politechniki Rzeszowskiej. Chemia

1998

z. 15 [169]

39-44

Przeprowadzono badania jonoforetyczne kwercetyny, moryny i ich sulfonowych pochodnych oraz kompleksów jonów Al(III) i Zn(II) z sulfonową pochodną moryny. Stwierdzono, że metoda elektroforezy bibułowej może służyć do oddzielenia kwercetyny i moryny od ich sulfonych pochodnych.

The ionophoretic inwastigation of quercitin, morin and their sulfonic derivatives and ions Al(III) and Zn(II) complexes with sulfonic morin derivative have been carried out. It has been state that the method of paper electrophoresis can be used for flavonoids (quercitin and morin) and their sulfonic derivatives separation.