POWDER ESR SPECTRA OF COPPER(Ⅱ)CROWN ETHER COMPLEXES WITH 3dZ2-GROUND STATE DOUBLET

Chinese Journal of Magnetic Resonance ›› 1995, Vol. 12 ›› Issue (6): 621-626.

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POWDER ESR SPECTRA OF COPPER(Ⅱ)CROWN ETHER COMPLEXES WITH 3d_Z²-GROUND STATE DOUBLET

Li Yong, Guo Jinliang

Department of Chemistry, Tsinghua University, Beijing, 100084

Received:1995-01-23 Revised:1995-04-07 Published:1995-12-05 Online:2018-01-17

Abstract

Abstract: Two powder samples of copper(Ⅱ) benzo-15-crown-5(Cu(Ⅱ) B15C5) coniplexes with 3d_Z²-ground state doublet doped in different substrathe were prepared.The ESR measurements demonstrate that H₂O molecules are the azial ligands of Cu(Ⅱ) B15C5 complex doped in B15C5 substrate,whereas ClO₄^- ions are the ones in Mg(Ⅱ) B15C5 substrate,The line shape of ESR spectra are found to be strongly affected by the axial ligands.The copper(Ⅱ)-ligand bonding parameters are estimated from the ESR parameters by means of Bleaney formula and the bonding nature is discussed and compared.

Key words: 3d_Z²-ground state Cu (Ⅱ) ion, 15-crown-5, ESR

Li Yong, Guo Jinliang. POWDER ESR SPECTRA OF COPPER(Ⅱ)CROWN ETHER COMPLEXES WITH 3d_Z²-GROUND STATE DOUBLET[J]. Chinese Journal of Magnetic Resonance, 1995, 12(6): 621-626.

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POWDER ESR SPECTRA OF COPPER(Ⅱ)CROWN ETHER COMPLEXES WITH 3d_Z²-GROUND STATE DOUBLET

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