ESR studies on copper(II) complexes of 1,3-diaminopropane and 1,2-diaminopropane

• Autorzy: Ayad M. , El-Tabl A.
• Języki publikacji: EN

Abstrakty

EN

The synthesis and characterization of (NH2RNH2)3CuCl2×H20 complexes, where R=(-CH2-)3 or (-CH(CH3)-CH2-) are reported. The complexes are octahedral. The ESR spectra of polycrystalline samples showed broad lines, which indicate spin-exchange interactions between copper(II) ions. In solution at 77K, the spectra show axial type symmetry with dx2-y2 ground state of a tetragonal distortion around copper(II) ion. The bonding parameters a22 and b21 indicate a covalent character of in-plane s and p bondings, while b2 indicates ionic out-of-plane p bondings. d-Orbital populations of the complexes indicate, that the unpaired electron site is mainly in dx2-y2 orbital.

Słowa kluczowe

EN

complexes; spectral studies

• Wydawca: Polskie Towarzystwo Chemiczne
• Czasopismo: Polish Journal of Chemistry
• Rocznik: 1999
• Tom: vol. 73 nr 2
• Strony: 263--269

Twórcy

autor

Ayad M.

autor

El-Tabl A.