Synthesis, spectral and electrochemical characterization of transition metal homodinuclear complex (Co(2+), Cu(2+), Ni(2+) with macrocyclic 34-membered hexaamine

• Autorzy: Pietraszkiewicz, M. , Pietraszkiewicz, O. , Bujno, K. , Bilewicz, R.
• Języki publikacji: EN

Abstrakty

EN

34-membered macrocyclic hexaamine containing two independent N-3 donor sets forms homodinuclear transition metal complexes with cobalt(II), copper(II), and nickel(II). Titration experiments show that the homodinuclear complexes are formed exclusively without formation of mononuclear complexes. Displacements of anions within the copper(II) complexes occur easily upon addition of different anions to the CuCl2 complex. All new complexes are characterized by elemental analysis, IR and UV/VIS spectroscopy, and cyclic voltammetry. The dinuclear Cu(II) complex both in the solution and immobilized in Nafion layer on the electrode undergoes revesible l e reduction independently at each copper center and exhibits catalytic activity towards oxygen reduction.

Słowa kluczowe

EN

transition metal complexes; macrocycles; polyamines; voltammetry

• Czasopismo: Polish Journal of Chemistry
• Rocznik: 1998
• Tom: Vol. 72, nr 5
• Strony: 852-859
• Opis fizyczny: Bibliogr. 22 poz., tab., wykr.

Twórcy

autor

Pietraszkiewicz, M.

autor

Pietraszkiewicz, O.

autor

Bujno, K.

autor

Bilewicz, R.

• Institute of Physical Chemistry Polish Academy of Sciences 01-224 Warsaw Kasprzaka 44/52 Poland