FT Pulsed EPR/Transient Quantum Spin Nutation Spectroscopy Applied to Inorganic High-Spin Systems and a High-Spin Polymer as Model for Organic Ferromagnets

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  • FT Pulsed EPR/Transient Quantum Spin Nutation Spectroscopy Applied to Inorganic High-Spin Systems and a High-Spin Polymer as Models for Organic Ferromagnets.
  • FT Pulsed EPR Transient Quantum Spin Nu

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Electron spin transient nutation method based on pulsed EPR spectroscopy was for the first time exploited for the identification of effective molecular spin multiplicities of a quasi one-dimensional organic high-spin polymer, showing the effective molecular high, spins with the spin quantum number S>2 featured in the nutation spectra of the polymer. It was concluded that the polymer was characterized as the mixture of molecular high-spin assemblages, supporting that the results from the susceptibility measurements of the same polymer suggested the existence of high-spin assemblages with an average S=2. The pulsed EPR nutation spectroscopy was also applied to high-spin systems of Mn2+ (S=5/2) and Cr3+ (S=3/2) in MgO powder, demonstrating the inherent advantages of the nutation spectroscopy. Particularly, the nutation method showed that Cr3+ in MgO is located in lower symmetric environments distorted from octahedral symmetry. The nutation spectra for the Cr3+-doped MgO powder indicated the occurrence of multiple quantum transitions for S=3/2.

収録刊行物

  • 分光研究

    分光研究 43 (5), 280-291, 1994

    社団法人 日本分光学会

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